the Workshop Doc 2
Contents
1. STAR Cryoelectronics MS OSC User s Manual Mr SQUID 44 GHz Oscillator STAR Cryoelectronics 25 Bisbee Court Suite A Santa Fe NM 87508 U S A STAR Cryoelectronics LLC 11 Table of Contents Revision RE A AA EHE A A A A A A a AAA vi Technical S pport O IA IEA vi A asd che E SR Ets Cr a vii Safety Precautions elnan e a E E acon E EE E E A E vii O el 1 1 1 Unpacking and Inspecuon vn ae 1 1 2 Additional Equipment Required une En 1 LS EAU OM o srta e eat Passe a e aed e gea ataa a e Weel ae eien AaS 1 O to ee 3 STAR Cryoelectronics LLC 111 December 15 2010 Initial Release O 2010 by STAR Cryoelectronics LLC Santa Fe NM 87508 All rights reserved No part of this manual may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without prior written permission of STAR Cryoelectronics STAR Cryoelectronics reserves the right to change the functions features or specifications of its products at any time without notice TECHNICAL SUPPORT If you have any questions or comments about this product or other products from STAR Cryoelectronics please contact STAR Cryoelectronics 25 A Bisbee Court Santa Fe NM 87508 U S A http www starcryo com Technical Support 505 424 6454 505 424 8225 info Ostarcryo com STAR Cryoelectronics LLC iv WARRANTY STAR Cryoelectroni2. ce Do not attempt to repair adjust or modify the instrument This could cause nullification of any warranty For service return the instrument to STAR Cryoelectronics or any authorized representative Do not operate this instrument in a volatile environment such as in the presence of any flammable gases or fumes Do not leave power applied to the oscillator unnecessarily the oscillator should be powered on to record the Shapiro step positions and then powered off STAR Cryoelectronics LLC v 1 Overview The Model MS OSC Mr SQUID Oscillator accessory for STAR Cryoelectronics Mr SQUID Educational Demonstration System is a 44 GHz microwave oscillator for the Mr SQUID Shapiro step experiment The Mr SQUID Oscillator accessory is compatible with all STAR Cryoelectronics Mr SQUID probes and MS EB03 control electronics The Mr SQUID Oscillator is powered using the DC power source provided with the Mr SQUID control electronics box A 5 pin DIN cable included with the Oscillator accessory is used to power the Mr SQUID electronics box through the Oscillator box A coaxial cable with 1 4 wave antenna is included to couple the 44 GHz microwave signal to Mr SQUID 1 1 Unpacking and Inspection Prior to unpacking the Mr SQUID Oscillator inspect the shipping carton s for any signs of damage that may have occurred during shipment If damage is observed notify the carrier immediately to allow for a possible insurance claim The
3. cillator to the power in jack on the rear panel of the MS EBO3 control electronics box 3 Check that the power switches on the MS EBO3 control electronics and MS OSC oscillator are in the OFF position STAR Cryoelectronics LLC 1 4 Turn on the MS EBO03 control electronics and adjust so that the Mr SQUID V I characteristic is visible on the oscilloscope or data acquisition device as described in the Mr SQUID User s Guide 5 Insert the 4 wav antenna into the slot in the foam cap that covers the top of the Mr SQUID dewar It is not generally necessary that the antenna protrude through the cap it just needs to be held firmly in place 6 Turn on the MS OSC oscillator and adjust the scale settings on the display device to see one or more steps in the Mr SQUID V I characteristic Note the positions of these steps as described in Sec 7 4 of the Mr SQUID User s Guide to determine the value of h e 7 Turn off the MS OSC oscillator the steps in the V characteristic should disappear A pa 7 Bee 7 7T Ae A g Mr SQUID V I curves without left and with right 44 GHz microwave signal provided by STAR Cryoelectronics Model MS OSC oscillator 50 uA div horizontal 100 uV div vertical STAR Cryoelectronics LLC 2 3 Specifications 44 GHz Gunn diode 2 92 mm F connector TEF Specifications subject to cha
4. cs Limited Warranty STAR Cryoelectronics warrants this product for a period of twelve 12 months from date of original shipment to the customer Any part found to be defective in material or workmanship during the warranty period will be repaired or replaced without charge to the owner Prior to returning the instrument for repair authorization must be obtained from STAR Cryoelectronics or an authorized STAR Cryoelectronics service agent All repairs will be warranted for only the remaining portion of the original warranty plus the time between receipt of the instrument at STAR Cryoelectronics and its return to the owner This warranty is limited to STAR Cryoelectronics products that are purchased directly from STAR Cryoelectronics its OEM suppliers or its authorized sales representatives It does not apply to damage caused by accident misuse fire flood or acts of God or from failure to properly install operate or maintain the product in accordance with the printed instructions provided This warranty is in lieu of any other warranties expressed or implied including merchantability or fitness for purpose which are expressly excluded The owner agrees that STAR Cryoelectronics liability with respect to this product shall be as set forth in this warranty and incidental or consequential damages are expressly excluded SAFETY PRECAUTIONS Do not remove product covers or panels Do not operate without all covers and panels in pla
5. following sections list the items included with the Mr SQUID Oscillator If any items are missing notify your STAR Cryoelectronics representative immediately MS OSC Mr SQUID 44 GHz Oscillator CBL SS405 13SW 13SW 36 Flex cable 2 92 mm straight plug each end 36 CBL 1020 05SF Antenna installed on flex cable CBL 5DIN 24 Power cable five pin DIN plugs both ends 24 1 2 Additional Equipment Required The MS OSC oscillator is intended for operation together with STAR Cryoelectronics MS EB03 Mr SQUID electronics box and Mr SQUID Educational Demonstration System 2 Operation To set up the Shapiro step experiment the Mr SQUID voltage current V characteristic is displayed using an oscilloscope or data acquisition unit then the microwave power can be turned on using a switch on the front panel of the Oscillator box The step positions on the V characteristic can then be recorded To revert back to the original V characteristic simply switch off the power to the Oscillator box 1 Check that the output coaxial cable and 4 wavelength antenna is securely connected to the output connector on the front panel of the MS OSC oscillator This cable must be connected before powering up the MS OSC unit to prevent damage to the oscillator 2 Set up the Mr SQUID system as described in Sec 3 or Sec 4 of the Mr SQUID User s Guide except use the five pin DIN cable to connect the Power Out jack on the rear panel of the MS OSC os
6. nge without prior notice STAR Cryoelectronics LLC 3
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