SB1000 Digital Seebeck Effect Controller Installation
Contents
1. a SS SS eee M M R The World s Resource for Solid State Characterization gt le SB1000 Digital Seebeck Effect Controller Installation amp Operators Guide Rev E July 2014 CE This document outlines the installation and setup of the MMR SB1000 Digital Seebeck Controller Page 1 1400 N SHORELINE BLvD STE A5 Mounralin View CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM i ee The World s Resource for Solid State Gharacierization gt ae MMR TECHNOLOGIES CONTENTS About the SB1000 Digital Seebeck Controller Specifications 3 System Requirements 3 Environmental and Safety 3 Hardware Installation Installation 4 Changing port numbers in Windows 5 Front Real Panel Interface 6 Getting Started 7 General Operation Main Software Suite Interface and Spooler 8 Theory of Operation 9 Stage Preparation 13 Sample Preparation 14 Experiment Setup 15 Seebeck Software Layout 16 Seebeck Software 17 Seebeck Statistics View 18 Communications Protocol 19 Troubleshooting Troubleshooting 21 Additional Information Help Desk and MMR Contact Information 22 Declaration of Conformity 23 Page 2 1400 N SHORELINE BLvD STE A5 Mounralin View CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM MMR TECHROLOGIES Solid State Characterization About the K2000 Digital Temp2. Wait for CTS 3 Send S as a Character VB Example on Next Page 4 Send M as a Character VB Example on Next Page 5 Send Average as a 2 Byte Word Highbyte First Lowbyte Second 6 Set RTS Low Page 19 1400 N SHORELINE BLvD STE A5 Mounralin View CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM TECHNOLOGIES o MMR rF The World s Resource for Solid State Characterization s 6 T General Operation Communications Protocol Visual Basic Example Sending a start measurement command SM2 Private Sub Form_Load MSComm1 CommPort 2 MSComm1 DTREnable False MSComm1 Settings 9600 N 8 1 MSComm1 RTSEnable False MSComm1 OutBufferSize 1024 MSComm1 RThreshold 1 MSComm1 SThreshold 0 MSComm1 PortOpen True End Sub Function StartWeasurement Dim command As Long Dim var As Integer Dim counter As String val 2 Start Measurement 242 counter 0 MSComm1 RTSEnable True Set RTS High While MSComm1 CTSHolding lt gt True counter counter 1 Wait for CTS Signal If counter gt 200000 Then MSComm1 RTSEnable False Reset RTS MsgBox Time Out Exit Function End If Wend MSComm1 OutBufferCount 0 MSComm1 InBufferCount 0 Clear Buffers MSComm1 Output ChrS S ChrS M ChrS val 256 ChrS val Mod 256 MSComm1 RTSEnable False End Function Page 20 1400 N SHORELINE BLvp STE A5 Mounralin V
3. 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM M M R j The World s Resource for Solid State Characterization TECH ROLGOGBIES I a i a LME General Operation Theory of Operation The system described below measures the Thermo voltage Seebeck Voltage of metals and semiconductors Italso provides the user with the opportunity to study the temperature dependence of the Seebeck Voltage for different materials Fig 1 shows a picture of the Seebeck Stage which is attached to the cold stage of the MMR refrigerator Reference Sample HEATER Reference Sample Material Material Material Material Copper PDAg Leads Leads V1 V2 V1 V2 Low Temperature Kapton Stage High Temperature Ceramic Stage Theory of Operation The Seebeek Stage has two pairs of thermo couples one of copper and a metal with known properties and the other pair of copper and a metal with properties to be determined One of the junctions in each pair is considered a reference junction and the other the working or temperature modulated junction The Stage also has a computer controlled heater located close to the working junctions of each pair and remote from the reference junctions This heater is controlled by the MMR Programmable Seebeck Controller SB1000 The Seebeck stage is attached to the cold stage of an MMR refrigerator which provides a given stable temperature for the measurement The MMR Cold stage is con
4. before taking the data The MMR Seebeck System allows the temperature of the MMR Cold Stage and attached Seebeck Stage to be controlled over a wide temperature range One can thus study the temperature dependence of the specific thermo voltage of the samples by repeating the measurements at a series of temperatures The Seebeck System allows this to be done automatically Definitions In the following the various terms used in this Manual and in the operation of the System are defined 1 Measurement point The set temperature for the Seebeck stage provided by the MMR Cold Stage Different measurement points are used in order to study the temperature dependence of the specific thermo voltage 2 Experiment The process that includes a sequence of settings of the measurement points Starting from the Initial Temperature and finishing with the Final Temperature data acquisition at every measurement point and calculation and presentation of the results 3 Initial and Final Temperatures These temperatures set the range of the data acquisition process If the Initial Temperature is less than the Final Temperature then the sample will be heated during data collection If the Final Temperature is lower then the sample will be cooled The Initial and Final Temperatures are always displayed during the experiment The permitted range of the settings for these temperatures depends on the type of Thermal Stage used Refer to the corresponding data s
5. change not those where these other offset voltages originate Subtracting equations 6 and 7 from 4 and 5 respectively we obtain the true value of 1 from the following 8 1 2 V1 P1 V1 P2 V2 P1 V2 P2 8 does not include AV 1 and AV2 The offsets have been removed Certain hardware and software precautions have also been implemented to eliminate any possible electrical coupling between the heater and measurement circuits as well Stage Junctions Seebeck Heater MMR Refrigerator Thermal Isolation Page 10 1400 N SHORELINE BLvp STE A5 Mounralin View CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM M M R The World s Resource for Solid State Characierization TECHUROLOGGIES Cid isa ae General Operation Measurement Process Data collected in green areas p V1 t V2 t HEATER ON HEATER OFF The power or the heater P t is changed from zero to level P V1 and V2 are plotted schematically to show the corresponding changes of the thermo voltages as the temperature of the working junctions change The green areas show the time intervals during which readings are taken The average value of V1 and V2 for power levels O and P are used at the end of every period to calculate the specific thermo voltage of the sample The initial and operating time delays provide time for the system to stabilize thermally
6. o Pint 500V Coefficient 750W Samp vs Ref Plot 1000W ER 4 26 u 4 53 u Experiment pregna Stage Voltages 0 5 10 15 20 25 30 35 40 Undo Zoom Temperature 300 03K 8 8 Readings Power 0 026 Ready oo A d Graph Functions Temperature Data Before selecting Start check the voltages and temperature data If a K2000 is present check the SB1000 status in the Experiment Setup box to verify proper communication Ready As shown above the voltages are close to 0 and equal Improper material mounting will cause erroneous voltages If Auto Standby was selected the K2000 Temperature Controller will first set the Standby Temperature Selecting start will begin the Automated Data Collection process the progress and status will be shown on the right hand side of the Experiment window If the experiment is Started before the standby temperature is reached the experiment will wait until the temperature is reached and then begin automatically If a K2000 Temperature Controller is present the temperature plot will automatically begin recording temperature data Page 16 1400 N SHORELINE BLvD STE A5 Mounralin View CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM ss ae a eee The World s Resource for Solid State Characterization MMR TECH AR OLGGIES General Operation gt B1000 Seebeck Experiment New Project
7. Email Address matt mmr tech com Sales amp Marketing Department sales mmr tech com Help Desk 1 650 962 9620 Office Hours 7 30am 5 00pm Pacific Time Monday Friday Physical Address 1400 North Shoreline Blvd Suite A5 Mountain View California 94043 USA Page 22 1400 N SHORELINE BLvp STE A5 Mounralin View CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM TECHNOLOGIES o MMR j The World s Resource for Solid State Characterization s 6 e Declaration of Conformity Declaration of Conformity CE Manufacturer MMR Technologies Model Name SB1000 Date July 2014 Expires July 2018 UL IEC 61010 Application of Council Directives Low Voltage Directive LVD 2006 95 EC Standards to which Conformity is Declared IEC EN 61010 1 3rd Edition Electrical equipment for measurement control and laboratory use Pressure Equipment Directive 97 23 EC Conformity is declared to Annex Essential Requirements of the Directive Application of Council Directives Electromagnetic Compatibility Directive EMC 2004 108 EC Conformity is declared to Annex and II EMC 2004 108 EC Page 23 1400 N SHORELINE BLvp STE A5 Mounralin View CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM
8. O x M Experiment Setup Progress Initial Temperature 320 0K Stan dby Term perature 300 00K Heater Power ma 6OmW Number of Repititions 2 Final Temperature 350 0K Auto Standby YES Gain 1000 Readings per Average 2 n 1 2 Steph See Slope K Min 15KZmin Initial Delay sec 30 Reference Material Kapton Constantan Seebeck Status Ready Step Delay Temperature Step 10 0 Operating Delay sec 30 High Impedance NO 2000 K2000 Status Ramping to 300 00K Step3 Measurement 1 miini View OOOO Reletence e E i a i oi Step4 Apply Seebeck Heat Step5 Op Delay Step Measurement 2 108 33 154 60 1 01 Ronis 0002 320 0 42 695 103 30 21 66 124 96 42 552 65 11 59 43 124 54 1 00 2 93 ROIS Step Heater Off 0003 330 0 he 724 229 41 54 35 175 06 43 399 189 20 15 44 173 76 1 01 4 00 Oe Re 0004 330 0 43 545 156 55 28 34 128 21 43 399 117 83 9 95 127 78 1 00 2 94 Repititions Remaining 0 0005 340 0 44 591 279 61 102 53 177 08 44 226 238 64 63 01 175 63 1 01 3 97 Print Step Next Temp 0006 340 0 44 384 206 48 79 84 126 64 44 226 166 96 40 77 126 19 1 00 290 67 175 17 1 01 ro a e 45 2214 260 23 232 15 129 05 45 029 219 99 91 47 128 52 ge 2 85 Total Progress SS SS Stop Amplifiers Sample Reference o sa x 1000uy zl Statistics 750 500 M Graph View New Project a A Export ov Sample Coefficient
9. ODLOGIES 7 5 i a i TAT be NEF j a Hf a General Operation However one should use a small temperature deviation A T in order to obtain representative data in the temperature domain Therefore the values of V 1 and V2 also will be small Because of this a direct measurement will not give high accuracy because of instrumental errors and any undesired thermo voltage effects from wires connectors etc These effects can create substantial offset voltages which in addition to the temperature drifts and offsets of the input amplifiers can contribute a major source of measurement error These can be eliminated however by taking measurements at two different temperature offsets using two different power settings and then using the difference signal We show this as follows The real values of V1 and V2 acquired by the SB1000 are given by 4 V1 P1 1 AT P1 AV1 and 5 V2 P2 2 AT P2 A V2 Where AV1 and A V2 are the instrument and extraneous thermal offset voltages discussed above and Piis the power applied to the heater at the first measurement point Now if the heater power is changed to a new value P2 we obtain a second pair of values for V 1 and V2 6 V1 P2 1 AT P2 AV1 and 7 V2 P2 2 AT P2 A V2 The offset voltages AV 1 and AV2 can be assumed to be independent of power P because only the temperature in the immediate neighborhood of the reference and sample junctions
10. Radios Computer Se Disk drives 2 Display adapters DYDICD ROM drives H 8 Human Interface Devices IDE ATA ATAPI controllers gy IEEE 1394 Bus host controllers Al Infrared devices ue Keyboards 5 Mice and other pointing devices E x Modems 2 Monitors Network adapters PCMCIA adapters Ports COM amp LPT J Communications Port COM1 3 ecm rat eTo 2 Select the corresponding Serial Converter 8G Processors Update Driver ii Secure Digital ae Device 5 Right Click gt Left Click Properties z System device Scan for hardware changes E Universal Seri Properties Opens property sheet for the current selection USB Serial Port COM4 Properties General Fort Settings Driver Detais 3 Click on the Port Settings Tab Bits per second 0 o Data bits ebe H Parity Nne ti it s SY Stop bits fh Flow control None e i Restore Defaults 4 Click Advanced Advanced Settings for COM4 au 5 Select a Comm Port between 1 16 that is COM Port Number coms v not in use by other hardware Click OK COM4 a USB Transfer Sizes COM5 X a COME Note On some computers you may need to Select lower settin COM7 Y hance problems at low baud rates Select higher settings for faster performance Receive Bytes 4096 x T Estes os gt to make the changes permanent disconnect unplug and reconnect the
11. Ribbon Cable e 1x MMR 4 Wire Kelvin Connection Breakout Board e 1x SB1000 K2000 Link Cable Please connect the SB1000 as shown below Do not connect both the RS232 Serial cable and USB cable simultaneously these are provided as an option should you be short of spare PC ports REFRIGERATOR RS232 or USB Once connected and with the PC Running you may now power up the SB1000 device Please first insure the AC Power switch at the rear of the unit is ON see page 6 for further information Press the front button labeled Power to activate the unit If the USB cable was used Windows will automatically assign a comport This must be identified and if necessary changed to be in the range of 1 16 See page 5 or contact your system administrator Please note down the assigned Comm Port Number as this will be required to communicate with the device Page 4 1400 N SHORELINE BLvp STE A5 Mounralin View CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM M M R j The World s Resource for Solid State Characierization TECHNOLOGIES gt a a id 6 a eb E Hardware Installation Changing Port Numbers in Windows Note Administrator access maybe needed contact your IT department Device Manager 1 Open Device Manager Fie Action view Help ey y eA We Meal e Control Panel gt Device Manager 4 ROLFRE10 H A Batteries Bluetooth
12. device BM Options Miscellaneous Options Select lower settings to correct response problems Serial Enumerator Serial Printer Latency Timer msec 16 z E Cancel If Power Off Timeouts Event On Surprise Removal Set RTS On Close Minimum Haad Tinnecus nese 0 z Disable Modem Ctrl At Startup Minimum Write Timeout msec fo Page 5 1400 N SHORELINE BLvD STE A5 Mounralin View CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM SS SS EEE a M M R The World s Resource for Solid State Gharacierization TECHNOLOGIES ae a Hardware Installation Front Rear Panel Interface POWER BUTTON RESET BUTTON POWER LED COMMUNICATIONS RED OFF STATUS USB ONLY BLUE ON Note The Power button must be held for 3 seconds to power down the unit O J w bP O 2 4 2 T oO m Us gt O m j N m tp Bi J m m Z 7 m PO Ss D I x 3 A ois Replace fuse with 3 15A Slow Blow IEC 127 2 or similar ONLY Page 6 1400 N SHORELINE Bivp Ste A5 Mountain View CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM a TESTSi EF rESI M M R j The World s Resource for solid State Characierization TECHNOLOGIES gt lt d Hardware Installation Getting Started i MMR i me ee i TECHNOLOGIES The Wo
13. e used for measurement of the Seebeck coefficient of a wide range of different conductive substances metals organic conductors and semiconductors Samples should be in the form of a thin strip or wire to be installed on the Seebeck Stage The actual dimensions and the shape of samples are not critical but should be considerably smaller than the Seebeck stage itself We recommend that the width of the samples not exceed 1mm 40 mils and the length 5 mm 200 mils For proper installation of the samples good electrical and thermal contacts must be provided at both ends of the sample to the Seebeck Stage Areas Shown Below The unknown sample should be installed to the left or the Seebeck Stage center the reference sample to the right Do not switch these locations otherwise you will get completely incorrect results For attaching the samples to copper surfaces one can either use regular soldering alloys or electrically thermally conductive cement or epoxy The bonding substance should be able to withstand the temperature range of the proposed measurements Materials of high specific resistivity and low thermal conductivity should not be used The resistance of the sample plus the bonding material to the Seebeck Stage should be less than 100Kohm Reference Sample Install the unknown sample first using the bonding material of your choice The working junction should be located as close as possible to the slot that separates the two copp
14. er surfaces of the unknown and reference samples see page 10 The location of the other end of the sample is much less critical If the sample cannot be formed or folded attach it at any convenient point on the copperplate which is common to the unknown and reference samples and as close to the center as possible Install the reference sample in a similar manner Cut approximately 5 millimeters 0 2 of the reference material wire supplied with the System For the standard Seebeck System version this is a wire of Constantan Attach one end of the wire piece to the copper plate which is common to both samples Use the same point as for the unknown sample The unknown and reference samples should have direct thermal contact in this point Attach the other end of the reference sample taking into account the same considerations as for tested sample The working junctions of both samples should have symmetrical locations relative to the stage heater Finally using an appropriate fluid clean the Seebeck Stage of possible surface contamination We recommend the use of Freon s and or methyl or ethyl alcohol Any cleaning materials used must be non conductive Notice Be very careful while mounting the samples bad electrical or thermal contacts asymmetrical location of the working junctions and surface contamination can cause serious measurement errors Page 14 1400 N SHORELINE BLvD STE A5 Mounralin View CA 94043 1346 PHONE 1 650 962 9620 Fa
15. erature Controller Specifications The SB1000 Seebeck Effect controller is built on and intended to replace the proven SB100 Seebeck Controller previously offered by MMR Technologies See Page 9 for the Theory of Operation This devices provides accurate Thermo Electric voltage readings from a MMR Seebeck Stage and Refrigerator assembly These devices are intended for use with MMR Refrigerators only Voltage 115VAC 220VAC 50 60Hz Dual Voltage Power Consumption 30W Heater Power O 1W Communications RS232 or USB1 0 See communications protocol Standalone Operation No Weight 5Lbs Dimensions 8 5 W x1 5 H x 14 25 D Environmental Indoor use only 5C 40C Temperature 2000M Max Altitude 80 Humidity for temperatures up to 31 C decreasing linearly to 50 Rel humidity at 40 C System Requirements The SB1000 Seebeck Controller is designed for use with MMR Technologies Suite which must be installed prior to using this device For custom control of this device see page 19 please note MMR may not support custom configurations and in some cases the warranty may be void Operating System Windows 2000 Windows XP Windows 7 Windows 8 Hardware 32BIT 64BIT INTEL or AMD Processor Memory RAM 2GB Memory Hard Disk 1GB Peripheral Interface 1x RS232 Serial or USB1 0 MacOS Not Supported Linux Unix Not Supported Environmental and Safety The SB1000 Seebeck Effect controller is built on and intended to replace the pro
16. eriments Errors will occur if K2000 remains selected when not present Step3 Press Begin Page 7 1400 N SHORELINE BLvp STE A5 Mounralin View CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM SS Sa PSS ee The World s Resource for Solid State Characterization _ kema e MMR TECHNOLOGIES General Operation Main Interface vi AR Technolo ANG gent SENE O WAVRE hnolog EXperim Shit DUME 2U15 Suite Main K2000 SB1000 H5000 Help NNJN NIV SNOILdO JDIAAG 0007X SNOILdO 3DIAIC OOOTES REFIGERATOR MINIMIZED APPLICATIONS TEMPFRATURE gt K2000 Te amp O x 581000 See 5 x 299 56K The main interface of the MMR Technologies Suite is shown above this is the primary container for all MMR applications The Applicable items for the SB1000 Temperature Controller are show above SBOOO Spooler Main Suite gt SB1000 gt Show Spooler This window shows the communications queue and response from the associated device in this case the SB1000 Seebeck Controller Troubleshooting is the primary use for this window However clicking Send is a short cut to the Main Communications Console outlined in the Software Installation Guide SBi000 Spooler Port 6 Gv2 0007 59 uv Gv1 0029 60 uv v2 O00 59 uv Page 8 1400 N SHORELINE BLvp STE A5 Mounralin View CA 94043 1346 PHONE 1 650
17. ge to reach equilibrium with the Cold Stage 12 Operating Time Delay The waiting period from the time the Seebeck Stage heater is turned on until the second set of readings are taken This allows a steady state to be reached across the Seebeck Stage 13 Reference Thermo Voltage The specific thermo voltage Seebeck Coefficient of the known junction used in the Seebeck Stage as a reference Since this parameter changes with temperature the data acquisition software includes a file with a look up table to provide the value which corresponds to that for the set temperature The Standard MMR Seebeck System is supplied with a lookup table for Constantan as the reference material relative to copper along with Constantan relative to PdAg 14 Averaging Parameter The parameter that defines the number of acquired data readings made during the measurement time interval which are subsequently averaged at one measurement point the parameter can vary from 0 to 7 The actual number of data readings is calculated as a corresponding power of 2 so a parameter 0 means 2 or one reading while a parameter 7 means 27 or 128 readings MMR Recommends a setting of 2 for most experiments Page 12 1400 N SHORELINE BLvp STE A5 Mounralin View CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM MMR TECHRDLOGBIES Solid State Characterization gt crore General Operation S
18. heets Page 11 1400 N SHORELINE BLvp STE A5 Mounralin View CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM TE M M R j The World s Resource for Solid State Characterization TECHNOLOGIES l N ME a LALE l General Operation 4 Stand by Temperature The temperature to which the Seekbeck stage is to be set after the experiment is completed 5 Current Temperature The actual present temperature of the Cold Stage 6 Target Temperature The temperature at which the present activity of the system is targeted It can be the Initial Temperature the Measurement point Temperature or the Standby Temperature The temperature setting process is complete when the Current Temperature is equal to the Target Temperature 7 Current Power The power being applied presently to the MMR Cold Stage by the K2000 MMR Temperature Controller 8 Temperature Step The difference between two successive measurement points 9 Sweep speed Ramp Rate The rate at which the temperature is changed from one measurement point to the next 10 Modulation Power The value of the power applied to the Seebeck stage heater to produce a temperature gradient across the samples 11 Initial Time Delay The waiting period from the time the Cold Stage reaches the measurement temperature until the system takes the first set of readings This delay is needed to allow the Seebeck Sta
19. iew CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM MMR TECHNOLOGIES Solid State Gharacierization gt crore m Troubleshooting Troubleshooting Symptom Solution Cannot Communicate with SB1000 Ensure Unit is properly connected and powered on Press Reset Check that the device is connected to the correct Communications Port and the drivers are successfully loaded No Lights on SB1000 Ensure Unit is plugged into an AC Power source the rear power switch is on Check Fuse Readings are unstable Check refrigerator is under vacuum Check sample mounting quality Refrigerator doesn t Cool or Heat Refer to Refrigerator Operators Manual check for damage to refrigerator Temperature Accuracy has degraded Return Refrigerator to MMR for Sensor service Software has an Error message Contact MMR helpdesk For all other errors or issues please contact the MMR Help Desk See Page 22 Page 21 1400 N SHORELINE BLvp STE A5 Mounralin View CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM a SS a I SE Ee M M R j The World s Resource for solid State Characierization TECHNOLOGIES gt lt Troubleshooting Help Desk and MMR Contact Information Help Desk Email Address support mmr tech com Bug Reporting spdbugs mmr tech com Technical Support
20. orld s Resource for TT F solid State Gharacierization _ S General Operation Seebeck Software Statistics Seebeck Experiment Statistics Voltage fui I I 1 I I I I pn Fa pn p n p n pn Fa m en t T m seat ie cn CC cn Lo Li co cn 427650 43 6345 744 4S 45 3025 10 19 50 42 8350 43 7240 44 5910 45 3910 24 April 2013 25 3 0 3 5 4 0 Sample 4 5 5 0 Undo Zoom The above Statistical Results view displays the Average Values at every Temperature point Standard Deviation is also present along with the Percentage Change and Min Max Values If no temperature control is present only 1 point will be plotted Page 18 1400 N SHORELINE BLvD STE A5 Mounralin View CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM M M R j Solid State Characterization General Operation Communications Protocol Main Communications Type Communications Interfaces Serial Settings Handshaking Yes Eh Yes System Commands Command Format Brample Deseripton sm smx SM1 L7 Averaging Parameter 2 n Readings Start Measurement O s Stour 7 Sobom SetHeater Nt eet Device oot ewer Down Ut Note Sending command SMx starts constant measurement at desired average rate Communications amp Byte Order Command Example SM2 Starts measurement at 2 2 4 readings per average 1 Set RTS High 2
21. rld s Resource for Solid State Gharacterization Version 10 3 STEP 1 Hardware Q Digital Temperature Controller M K2000 COMM 2 Present x Pall Seebeck Measurement System M B1000 HALL Measurement System M H5000 STEP 2 Experiment Type C Dual Temp Live Monitor Refrigerator Temperature Ramp C Seebeck Experiment iat R Guaru MMR Technologies Inc 2012 eat Capacity Experiment all Measurement System 1400 North Shoreline Blvd AS Oo Mountain View CA 94043 United States of America STEP 3 Begin gt gt 1 650 962 9620 http www mmr tech com Step 1 Device ports are easily verified through the welcome screen above select the port number the SB1000 Temperature Controller is connected to shown as present next to the SB1000 and press Poll If the SB1000 is connected to that port and powered on it will respond with a Device name and Version number Comm Port x B1000 V12 If the port number is not visible try refreshing the port list by clicking the refresh icon above the Poll buttons If this does not resolve the issue try restarting the computer For further assistance contact your system administrator and finally the MMR Helpdesk See contact information on Page 27 Step 2 Select Seebeck Experiment This will load the Seebeck experiment module if there is no K2000 present deselect K2000 under hardware This will disable temperature control for all Seebeck exp
22. side the chamber The correct settings must be used or erroneous data will result Click OK Page 15 1400 N SHORELINE BLvD STE A5 Mounralin View CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM aa a eee The World s Resource for Solid State Characterization gt fe MMR TECHNOLOGIES pn General Operation Experiment View Experiment Parameters B1000 Seebeck Experiment New Project m x m Experiment Setup m Progress Initial Temperature 320 0K Standby Temperature 300 00K HeatefPower mw 60mw Number of Repititions 10 Final Temperature 350 0K Auto Standby YES Gain 1000 Readings per Average 2 n 1 2 Step Goto Temp Slope k Min 15K min Initial Delay sec 30 Reference Material Kapton Constantan Seebeck Status Ready Step2 Delay Temperature Step 10 0 Operating Delay sec 30 High Impedance NO K2000 Status Holding at 300 00K L Step3 Measurement 1 Data View a Step4 Apply Seebeck Heat Experiment Step5 Op Dely Progress a a E T p Ref Ratio Differ K Step6 Measurement 2 Export csv A Experiment zie Step hea Repititions Remaining 10 Data Print Step8 Next Temp Experiment Start Stop PS Amplifiers Sample Reference o St E 1000uU zl Statistics 750 i 500 M Graph View New Project _ Export OV Sample Coefficient uV K Reference Coefficient uV K 250W
23. tage Preparation 1 Stage Installation 1 1 Remove a Seebeck Stage from the package 1 2 Puta thin layer of thermal grease on the large Copper plate Underside 1 3 Unlock the ZIF connector if present on the pre amplifier board in the vacuum chamber Using thumbs on each side of the connecter insert the Seebeck stage fully 1 4 Affix the Seebeck Stage to The Cold Stage by the spring fasteners Be extremely careful Do not apply any downward force on the refrigerator Using tweezers to adjust the fasteners during installation You can move the Seebeck Stage backwards and forwards by a couple of millimeters to get the best location 1 5 Lock the ZIF connector If present 1 6 Install the cover on the vacuum chamber 2 Connect the Ribbon cable from the Chamber to the SB1000 if a K2000 is present for temperature control ensure the Link Ribbon Cable is installed from the SB1000 to the K2000 3 If you are going to use the system at temperatures below ambient you should also install all system components required for cooling according to the MMR Refrigerators Manual Page 13 1400 N SHORELINE BLvp STE A5 Mounralin View CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM M M R The World s Resource for Solid State Characterization TECHROLOGIES a am 4 HT fab x General Operation Sample Preparation The MMR Seebeck System can b
24. trolled by the MMR K20000 Digital Temperature Controller The Seebeck Stage has two outputs V 1 and V2 which are monitored by a computer through the SB1000 The principle of operation is the following Assume that all four thermocouples are at the same temperature Then V1 and V2 will be zero because each member of each pair of thermocouples compensate the voltage of the other If power is applied to the heater then a temperature difference will be created between the working and the reference junctions because they are located at different distances from the heater As a result thermo voltages will be generated in each pair giving non zero output voltages VI and V2 These are given by 1 V1 1 AT P and 2 V2 2 AT P Where 1 and 2 are the specific thermo voltages of the sample and known thermocouples respectively and A T P is the temperature difference between the working and the reference junctions created by applying power P to the computer controlled heater We expect that the temperature difference A T P will be the same for both pairs because the stage has a symmetrical shape The value of the specific thermo voltage of the unknown junction is then 3 1 E2 V1 V2 Page 9 1400 N SHORELINE BLvD STE A5 Mounralin View CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM M M R The World s Resource for solid state Characterization TECHR
25. uW K Reference Coefficient uV K N 400 n Pi 5004 200 2 7504 0 a 1000 S 200 i Fullscreen 145 37 u 106 20 u o 400 Refrigerator 0 1 2 3 4 5 6 7 8 Undo Zoom Temperature 336 23K Readings Power 0 001 The above Complete Experiment shows the data collected the user has the option of 1 Saving the data to the internal database to retrieve later Main Suite gt SB1000 gt Open 2 Printing the Data in Data View click Print 3 Printing the Plot in Graph View click Print 4 Exporting Data to Comma Separated Values in Data View click Export csv for further analysis in third party software such as Microsoft Excel 5 Viewing statistics in Data View click Statistics Note Some options are only available when the Experiment has completed successfully K2000 New Project 24 April 2013 3 0 300 25y 2 0 5 aie 3 E 200 158 v 1 0 150 0 5 100 0 C 0 100 200 300 400 500 600 700 800 Seconds 0 0 02 0 04 0 06 0 08 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 24 Hours The above plot shows the Temperature Control during the Seebeck Experiment this data can be printed from within the K2000 Temperature Graph Window if needed Page 17 1400 N SHORELINE BLvp STE A5 Mounralin View CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM MMR TECH AROLGGIES SS a SS EE The W
26. ven SB100 Seebeck Controller previously offered by MMR Technologies Please observe the following safety warnings Do not open the enclosure do not operate on any voltage other than specified do not attempt to service or modify the equipment do not operate in wet damp locations Warning electrical shock injury or death may occur if the device is opened or the earth modified Use only the cables supplied with the device and ensure a proper Ground is present The SB1000 should only be used as intended and should not be used for any other purpose Any non intended use could cause fire loss of life loss of equipment and bodily harm User assumes all risk should the equipment be misused modified or use in an unintended manner Contact MMR for service requirements Page 3 1400 N SHORELINE BLvp STE A5 Mounralin View CA 94043 1346 PHONE 1 650 962 9620 Fax 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM SS a SS Ee The World s Resource for Solid State Characterization oO F rrm MMR TECHNOLOGIES Hardware Installation Installation Before proceeding please ensure the MMR Technologies Software Suite is installed and the following items are present e 1x SB1000 Seebeck Controller e 1x K2000 Temperature Controller If Temperature control is required e 1x AC Power Cable e 1x RS232 DB9 Serial Cable e 1x USB 3FT Cable e 1x User Manual and Software Driver Installation CD e 61x 4FT Refrigerator
27. x 1 650 962 9647 EMAIL INFO MMR TECH COM WEB WWW MMR TECH COM a i ee M M R The World s Resource for solid State Characierization TECHNOLOGIES F rr General Operation Experiment Setup New Project Project Name New Project Comments Date 23 April 2013 Temperature Settings Heater Control l Skip Temperature Settings SB Heater Power 1 900rn w 60 Initial Delay 0 300s i Start Temp 20 800K 320 T onani mean High ee Jperating Delay U sUUs Final Temp 20 800K 350 Slope 1 15K Min fi5 L TO R Auto Standby V Sample Mounting Stage Kapton Constantan Standby Temp Start Temp L Gain 1000 Standby Temp 20 800K 300 Repititions 1 100 10 Temp Step 0 1 50K f 0 Averaging Parameter 2 n f1 v As mentioned in the Seebeck Definitions on Page 12 the Experiment parameters can now be entered If no K2000 Temperature Controller is present select Skip Temperature Settings this will carry out the experiment at Ambient Temperature 300K will be used for all calculations Sample Mounting Stage Select the appropriate stage type that the sample is mounted on High Impedance Input Select the appropriate Impedance Setting that relates to the Amplifier in use Gain Select the appropriate Gain value that relates to the Amplifier in use Note Impedance and Gain settings are indicated on the Amplifier board in
Download Pdf Manuals
Related Search