ea-sda14 acoustic recorder
Contents
1. 22 bits 21 5 bits 21 bits 20 5 bits 20 bits All these frequencies include an anti aliasing filter of 135 dB minimum Programmable parameters The digitization parameters of the hydrophones are Selection of acquisition channel A and or Bir and or and or Sampling frequency 4 kS s 2 kS s 1 kS s 500 S s 250 S s FR TGuc EA SDA 14 Data Sheet 10 20 EA SDA14 ACOUSTIC RECORDER Example The example bellow is a dynamic range test with a high level signal input The signal injected has these characteristics 125Hz 8 dBV 707 mV This graph illustrates the high quality acquisition and the low noise floor despite the high level signal It also shows the unexpected non linearity of the signal generator HD2 250Hz and 375Hz LiveFFT v2 0 Stop Number of points Average length Use SH curve Use Blackman Harris window dBV 3 075 35 56 68 05 100 5 133 0 0 250 Record mode Channels A B C Tora e ae ee ET aus i Sampling Frequency 444 2 Hz Figure 5 Measurement example Spectral analysis on acquisition channel C at 1 kS s Risvs EA SDA14 Data Sheet 11 20 EA SDA14 ACOUSTIC RECORDER Mechanical characteristics Product overview Figure 6 View of the model sizes of the EA SDA14 Acoustic Recorder all operating until 700 m depth The waterproof housing is either a hard anodized aluminum or POM C2. Network configuration Figure 6 System configuration tab The mission schedule is defined with a start end time and active standby periods of the record cycle Home Scripts System configuration Status Recorded files Tools Update Connected Date and time configuration Mission schedule Acquisition Broadband Low frequency Deactivate mission if a button sequence occurs Only in alarm mode 1 Use hard drive Option not available o Use hybrid mode Option not available 1 Log attitude Option not available Log GPS Option not available Mission start time Mission end time Max file size Sampling Frequency 2013 01 01 00 00 00 2020 12 31 23 00 00 2568 MB gt 5 Active period Standby period Channel selection 1M25 0 00 0 10 lala elgi 156 25 Sample size 78 125 16 32 39062 5 LL Figure 7 Mission schedule r gt FR TGuc EA SDA 14 Data Sheet 16 20 EA SDA14 ACOUSTIC RECORDER Meme Sepu Sywemcoviquenee Swa ties Took Update Connected ert Record mode Broadband Low power Low frequency Marber o ports Crarces Freqvercy PRAGA MSAT Arange weg 4 Usa SH curve wa 2 1 12 5 1 SB endow baltic 12 ru Y t 72 7 I x 732995 re Y 95412 BV 21334 t 2594 599 3 1 6e t adest Figure 8 Live meas
3. acquisition quality o High quality Higher sampling rate and calibrated acquisition channels o Low power o Low frequency recording strategy o SD Cardonly o Hybrid mode Battery life SD Card only continuous recording Table 8 Battery life with SD Card recording Hybrid mode recording 5096 duty cycle Table 9 Battery life in hybrid mode 18 Li SOCI2 batteries 781 h 32 Days 688 h 28 Days 611 h 25 Days 530 h 22 Days 5ALi SOCI2 batteries 96 Days 84 Days 75 Days 66 Days Storage capacity The indicative table below shows the necessary storage capacity and the different sampling rates for 1 hydrophone channel acquisition To respect the signal dynamics the samples are saved as 16 24 or 32 bit WAV files In this example the samples are saved as 24 bit files Table 10 Storage capacity and sampling rate for 1 hydrophone channel acquisition on a 24 bit file aum wu 4404 nm ne 97GB 193GB 886GB 773GB 155GB 324GB 618GB The necessary memory size depends on the Li of active channels Data throughout MB s Nb of channels Sampling freq s Nb of Bytes 1000 1000 Recommendations To maximize the battery life of the Acoustic Recorder select the useful acquisition channels only The mission schedule has to be set start end time and active standby period of the record cycles P EA SDA14 Data Sheet 7 20 EA SDA14 ACOUSTIC RECOR
4. and the SD Card A calibration table Figure 8 The EA SDA14 waterproof protection cases rt EA SDA14 Data Sheet 14 20 EA SDA14 ACOUSTIC RECORDER Software The software is configurable with a web browser through an Ethernet cable The web interface provides user friendly access to the features of the Acoustic Recorder mother board Userinterface Scripts o Displays the live acquisition channels graph o Displays the live FFT of each acquisition channel o Activates a recording directly from the web interface for a quick analysis System configuration Date and time configuration o System clock settings Mission schedule o Programming the active standby periods of the record cycle s o Acquisition channels selection o Sampling frequency Network configuration o Fixed IP address or DHCP Recorded files access to the recorded WAV files o Possibility to download the recorded data o Possibility to erase the stored data Tools WAV file splitter WAV header information Web browser and plugins Calibration table in pdf and excel format Datasheet in pdf format O O O O rt EA SDA 14 Data Sheet 15 20 EA SDA14 ACOUSTIC RECORDER System configuration The system is configurable through the web interface Home Scripts System configuration Status Recorded files Tools Update Connected Date and time configuration 2014 12 18 13 10 26 Save gt Mission schedule Hydrophones
5. central tube The end caps are manufactured in POM C The surrounding protections are made of 316 L stainless steel They protect the connectors and allow for the setting of the shackles They can be removed or used as mounting brackets Dimensions The EA SDA14 Acoustic Recorder is available in 3 model sizes 1210mm 550mm and 320mm This allows an increased autonomy for longer mission 1210 504 Figure 7 Dimension drawing of the EA SDA14 Acoustic Recorder models rt EA SDA 14 Data Sheet 12 20 EA SDA14 ACOUSTIC RECORDER Table 13 Weight and dimensions of the Acoustic Recorder models Weight in air Weight in air z Weight in Endcaps Four different end caps are available depending of the option chosen on the Acoustic Recorder 1 to 4 hydrophones Ethernet connection Here are the 4 end cap settings A B C and D Figure 5 1 A End cap Figure 5 2 B End cap here 4 hydrophones Figure 5 3 C End cap here Ethernet only Figure 5 4 D End cap here Ethernet amp 1 hydrophone rt EA SDA14 Data Sheet 13 20 EA SDA14 ACOUSTIC RECORDER Packaging The EA SDA14 is delivered inside a waterproof protection case The delivery includes The EA SDA14 The hydrophone s A long Ethernet cable 10 m The batteries 6 x LSH20 or 18 x LS33600 or 54 x LS33600 The User manual The software
6. 1 pdf 50 14 1210011 calibration xls Available tools a Firefox 12 0 Flash Player 11 RT 5 RTWavelnfo 1 2 Figure 10 Tools tab RISS EA SDA14 Data Sheet 18 20 EA SDA14 ACOUSTIC RECORDER Contact gt 5 5 5 5 SIRET 52420113400029 RCS Lorient B 524 201 134 gt Address 5 5 25 Rue Michel Marion 56850 CAUDAN France Website www rtsys eu gt Phone 33 2 97 89 85 80 gt Email sales rtsys fr support rtsys fr 50 9007 8 DISPONIBLE SUR wi fr ISO9001 2008 Certificate number 2012042859 The information furnished by RTSYS is believed to be accurate and reliable However RTSYS assumes no responsibility for the use of the information provided Risvs EA SDA14 Data Sheet 19 20 EA SDA14 ACOUSTIC RECORDER Notes Risvs EA SDA14 Data Sheet 20 20 uJ ZLISQ YFLVOSV3
7. 2 Extension Batteries Li lon Battery 156 Wh Rechargeable internal energy storage Li lon Battery Extension 468 Wh Rechargeable internal energy storage These are indicative values that depend on the battery specifications gt Data memory storage Table 7 Data memory storage type and capacity SD Card SD HC 128 GB WAV acoustic files recording SD Card SD HC 256 GB WAV acoustic files recording Mass storage SSD 600 GB WAV acoustic files recording Hard drive 2 5 WAV acoustic files recording Hard drive 2 5 WAV acoustic files recording gt Operating limits Operation Storage max temperature 0 to 70 20 to 85 Hydrophone preamplifier max current 20 mA RISS EA SDA14 Data Sheet 5 20 EA SDA14 ACOUSTIC RECORDER Operation The EA SDA14 Acoustic Recorder is provided with a PoE box It uses an Ethernet connection to communicate A web interface can be used for mission programming data collection monitoring and live analysis A LED push button indicates the recording status Figure 3 View of the EA SDA14 recorder Recording modes Three recording modes are available Manual Preferred for fast in situ measurement Acoustic Recorder waits for the button to be engaged to start recording a pre programmed mission schedule Autonomous The mission starts automatically at a programmed start time and does several active standby record cycles until it reaches its end date The hydropho
8. DER Available options Pressure depth and temperature sensors There are 2 sensors rated to 200 or 700 meter depth These high precision sensors are calibrated at 0 1 or 0 296 of the full scale depending on the depth 11 Pressure and temperature sensor 20112588 1 Ap 0 1 0 2 m 0 2 0 7 m gt Hydrophone Adaptation Board This option allows the adjustment of the voltage and impedance and the attenuation of specific hydrophones When ordering this option please specify for each acquisition channel necessary voltage until 24 V The necessary impedance until 500 KO he necessary attenuation factor 0 dB 10 dB 20 dB 30 dB Examples Passive hydrophones that require to be charged with very high impedances High quality B amp K or Reson hydrophones that require higher voltage power Piling application that requires passive hydrophones and attenuated acquisition channels GPSinput Once activated this option acquires a GPS input from an external serial port and records NMEA data time logs in correlation with acoustic data A separate timestamp data file is recorded to correlate the recorded sounds with the position of the Acoustic Recorder When ordering this option please specify if a dedicated 4 way SubConn input is necessary instead of a record acquisition channel HDD option This option allows the Acoustic Recorder to acquire a larger quantity of data and to recor
9. EA SDA14 Acoustic Recorder Key features Autonomous and wired mode Until 4 hydrophones at the same time 24 bit data acquisition oelectable bandwidth acquisition Native 128 GB SD Card Programmable mission schedule Battery and attitude monitoring Calibration table for measurement accuracy 300 or 700 m operating depth Options gt 1 2 TB HDD or 600GB SSD memory Additional battery for larger autonomy Additional temperature pressure sensors Low frequency acquisition module Fields of application Offshore and environment ocientific instrumentation Autonomous passive recording Hydrophone network Typical application 0 D t ee W IH er et EEA 10 100 1000 10000 100000 Frequency Hz Noise level Max measured level Sea state 0 Input gain 14 7 dB gt High quality hydrophone with SH 174 dB re V UPA Risyvs Description The EA SDA14 is a compact autonomous recorder that can simultaneously acquire the data of 4 wideband hydrophones The Acoustic Recorder accepts both passive and preamplified active hydrophones Its wide band analog input allows until 1 MHz with a dynamic range greater than 100 dB which guarantees an efficient signal to noise ratio The embedded digital signal processor allows high speed acquisition filtering and storage In auto
10. d at a higher frequency The maximum recording speed ranges from 625 kS s 3 channels to 2 5 MS s 2 channels 3 HDD options are available 1TB HDD 2 TB HDD 600GB SSD Mounting brackets The mounting brackets are used to protect the Acoustic Recorder They can be used to either mount the Acoustic Recorder onto a mooring line or to tow it from a boat The mounting brackets are specifically made to operate with tensile stress rt EA SDA 14 Data Sheet 8 20 EA SDA14 ACOUSTIC RECORDER Communication cable The Acoustic Recorder is sold with a standard 10 m communication cable This length can be customized to your needs until 100 m For applications that require a long range deployment until 1 5 km see 5 Long range communication extension gt Long range communication extension Some applications require the long range remote monitoring of an acoustic environment RTSYS provides an extension system that allows the remote control of the Acoustic Recorder until 1 5 km The user can start the recording monitor the behavior and acquire the data from the remote Acoustic Recorder while recording Low frequency acquisition module To get a better acquisition below 2 kHz a low frequency option can be added in parallel to the four high frequency acquisition system This option is used for passive hydrophone only and consists of a dedicated front end with four high quality low frequency ADC Technical characterist
11. ics Hydrophone inputs Low Frequency ADC Low Frequency ADC pe Low Frequency Gain mE Tl 20 C im gt L Low Frequency i F meme wk 5 rn Figure 4 Functional diagram of the hydrophone inputs with the low frequency option This new Acoustic Recorder configuration can either acquire 4 passive hydrophones with low frequency acquisition channels or 4 passive hydrophones with high frequency acquisition channels or 4 passive hydrophones with both low and high frequency acquisition channels rt EA SDA14 Data Sheet 9 20 EA SDA14 ACOUSTIC RECORDER High quality hydrophone inputs The analog inputs are preamplified with a fixed gain and are made to be used with passive hydrophones They accept a wide dynamic signal range from the hydrophone sensor Typical characteristics The following values are related to a typical input amplifier gain of 14 7 dB Sensitivity 130 dBV 0 35 uV RMS Pass band ripple 0 03 dB Stop band 135 dB INL Integral No Linearity 0 5 ppm SNR 130 dB THD Total Harmonic Distortion 122 dB Digitizing The analog to digital sampling frequency is configurable The table below shows the ENOB Effective Number Of Bits and SNR Signal to Noise Ratio Table 12 Low frequency digitizing data e 112 5 Hz 225 gt 450 Hz 900 Hz 1 8 kHz 0 3 Hz to 142 dB 136 dB 133 dB 130 dB 127 dB
12. l characteristics 12 gt Product overview 12 gt Dimensions 12 gt End caps 13 gt Packaging 14 Software 15 gt User interface 15 gt System configuration 16 Contact 19 gt RTSYS SAS 19 gt Address 19 gt Website 19 gt Phone 19 gt Email 19 4 Notes 20 rt EA SDA14 Data Sheet 2 20 EA SDA14 ACOUSTIC RECORDER Technical characteristics gt Hydrophone inputs The EA SDA14 has two types of hydrophone inputs High quality input Low power input Low Power ADC ADG LP filter Gain Gain LP filter Gain LP filter SEE ADC 9 o d oc o n orm u Q O O o gt gt o lt ADC Gain LP filter Figure 1 Functional diagram of the hydrophone inputs High quality hydrophone inputs The analog inputs are preamplified with a fixed gain and can either be single ended or differential The inputs accept wide dynamic range signals from the hydrophone sensor Differential 14 7dB Single Inputs High pass filter Amplifier Analog to Digital Converter Figure 2 Input functional diagram with default 14 7dB gain Typical characteristics The following values correspond to a typical input amplifier gain of 14 7 dB Input impedance 5000 Input Level MIL 10 dBV 920 mVpp Sensitivity 123 dBV 0 7 uV RMS High pass filter 350 Hz at 3 dB Surge peak to peak voltage 300 V Time 10 ms More values are a
13. ne signals are acquired and stored during the record phases Wired The Acoustic Recorder is connected to a computer through its underwater Ethernet cable 10 100 m It starts once the button is engaged and a live analysis of the acoustic signal can be done through the web interface The acoustic data can be displayed recorded and downloaded in real time Data Format The acquired data are stored in 16 24 or 32 bit WAV files The WAV filenames are composed of the acquisition channel ID the date and time All the acquisition channels A B C and D run at the same sampling frequency The sampling rate is programmed with the user interface and the data are recorded on a multi channel WAV file Data storage The Acoustic Recorder has 2 data storage locations A 128 GB or 256 GB SD Card An optional high capacity HDD Hard Drive Disk or SSD solid state drive The user can select 2 strategies to store the data SD Card only o Limits the battery consumption o Limited to 3 acquisition channels 625 kS s or 4 acquisition channels 312 kS s Hybrid mode o Allows high capacity storage and low power consumption o data are stored on a SD Card then transferred onto the high capacity HDD or SSD storage at the end of the record cycles rt EA SDA14 Data Sheet 6 20 EA SDA14 ACOUSTIC RECORDER Autonomy The autonomy of the Acoustic Recorder depends on battery capacity storage capacity
14. nomous mode the data are stored on either a SD Card or a HDD In wired mode the data are stored then transferred with an Ethernet connection Its power consumption is between 0 6 to 2 5 W operating and less than 1 mW in standby The EA SDA14 can be programmed with a mission schedule that includes the start date and the active standby periods of the record cycles to improve battery life The configuration and monitoring are done through a web browser interface Short aluminum model characteristics Dimensions Length 320 mm Diameter 120 mm Weight air 5 kg Weight water 2 kg EA SDA14 ACOUSTIC RECORDER Table of contents Technical characteristics Hydrophone inputs High quality hydrophone inputs Typical characteristics Digitizing Programmable parameters Configuration examples Low power hydrophone inputs Embedded sensors Monitoring Power supply Data memory storage VVVVVVVVV VV WV Operating limits Operation Recording modes Data Format gt Data storage Autonomy gt Battery life Storage capacity lt Available options O 09 09 00 WAN Ui kh KR amp Tj W gt Pressure depth and temperature sensors gt Hydrophone Adaptation Board gt GPS input gt HDD option gt Mounting brackets gt Communication cable gt Long range communication extension gt Low frequency acquisition module Mechanica
15. set value 100 Hz at 3 dB Surge peak to peak voltage 300 V Time 10 ms spurious free dynamic range greater than 80dB is guaranteed with hydrophone signals of dB V maximum The analog to digital sampling frequency is configurable The table below shows the ENOB Effective Number Of Bits and SNR Signal to Noise Ratio Table 3 Low power digitizing data NN 99 dB 96 dB 93 dB Risws EA SDA14 Data Sheet 4 20 EA SDA14 ACOUSTIC RECORDER Embedded sensors Table 4 Available sensors accuracy and functions with battery backup Active and Standb 3 axis acceleration measurement XYZ Inclinometer with pitch and roll 3 axis gyroscope 8 75 mdps 3 axis gyration measurement 0 15 Water temperature measurement Pressure analog 0 196 Full Scale Pressure measurement Operating depth Monitoring Table 5 Monitoring functions Power voltage Vin 10 mV Power supply voltage monitoring Power supply current monitoring Board temperature Board temperature monitoring Power supply Table 6 Power supply capacity 6 x D Size Li SOCI2 Battery 216 Wh Internal energy storage Or 6 x D Size Alkaline Battery 91 Wh nternal energy storage Ethernet Cable Powersupply Communication and power cable x 18 x D Size Li SOCI2 Battery 650 Wh Extended room for 18 D Size Li SOCI2 Extension Batteries 54x D Size Li SOCI2 Battery 1950 Wh Extended room for 54 D Size Li SOCI
16. txt Date 2012 11 12 09 32 31 Size 13 7 KB Figure 9 Recorded files tab RIS lt EA SDA14 Data Sheet 17 20 EA SDA14 ACOUSTIC RECORDER Home Scripts System configuration Status Recorded files Tools Update Versions Monitoring Date 2014 07 24 14 22 36 Temperature 39 1 C Current 0 311125 A Voltage 9 872 V Power 3 071426 W Firmware Version Revision Signal conditioner 10 3 0 Application 14 04 02 Serial EA SDA14 1210011 Channels Gain Channel Gain dB 1 Gain 1 Correction factor A 15 4452643934 0 168941669 1 003086 Space Hard Drive Available 118 4 GB 99 7 96 1862 2 GB 100 0 96 Total 118 7 GB 1862 4 GB 15 4452643934 0 168941669 1 006816 Format SD Card Format HDD Sensors B C 15 4452643934 0 168941669 1 000962 D 15 4452643934 0 168941669 0 99875 r gt Temperature 27 5199135809 C Pressure 1 01328565705 bar Copyright RTSYS 2013 Figure 9 Status tab Connected There is also a Tools tab which allows the download of Firefox Flash Player RTWavelnfo RTWaveSplit EA SDA14_Locator the calibration table and the user manual These pieces of software help the post analysis of recorded data RIsvs EA SDA Home Scripts System configuration Status Recorded files Tools Update Connected User Manuals EA SDA14 DataSheet 015 pdf EA SDA14 SecurityNote en 001 EA SDA14 UserManual 018 Calibration data EA SDA14 121001
17. ure example Spectral analysis on acquisition channel A at 2 5 MS s Recorded files are listed on a dedicated tab These files can be downloaded from the web interface or from a terminal Command line Home Scripts System configuration Status Recorded files Tools Connected Invert selection Download Delete SD card frst lt 1 2 gt last Filename sensor 2012 11 12 00 36 11 txt Date 2012 11 12 00 36 11 Size 1 1 KB Filename board 2012 11 12 00 36 11 txt Date 2012 11 12 00 36 11 Size 17 6 KB Filename gyro 2012 11 12 00 37 05 txt Date 2012 11 12 00 37 05 Size 5 4 KB Filename sensor 2012 11 12 00 37 05 1 Date 2012 11 12 00 37 05 Size 180 0 bytes Filename board 2012 11 12 00 37 05 txt Date 2012 11 12 00 37 05 Size 244 0 bytes Filename accel 2012 11 12 00 37 05 txt Date 2012 11 12 00 37 05 Size 5 2 KB m Filename channelABCD 2012 11 12 00 37 05 wav Date 2012 11 12 00 37 05 Channels ABCD Size 18 0 MB Filename gyro 2012 11 12 00 37 48 txt Date 2012 11 12 00 37 48 Size 4 8 KB Filename accel 2012 11 12 00 37 48 txt Date 2012 11 12 00 37 48 Size 4 6 Filename sensor 2012 11 12 00 37 48 txt Date 2012 11 12 00 37 48 Size 180 0 bytes Hard drive Filename mission 2012 11 12 09 33 29 txt Date 2012 11 12 09 33 29 Size 5 9 KB Filename sensor 2012 11 12 09 33 31 txt Date 2012 11 12 09 33 31 Size 10 1 KB Filename board 2012 11 12 09 33 31
18. vailable on request A spurious free dynamic range greater than 80 dB is guaranteed with hydrophone signals of dBV maximum rt EA SDA14 Data Sheet 3 20 EA SDA14 ACOUSTIC RECORDER Digitizing The analog to digital sampling frequency is configurable The table below shows the ENOB Effective Number Of Bits and the SNR Signal to Noise Ratio Table 1 Typical digitizing data ENOB 20 bits 19 5 bits 19 bits 18 5 bits 18 bits 17 5 bits 17 bits 108 108dB 105 105dB 102 102dB 99 99dB 96 96dB 93 90 9048 Programmable parameters The digitization parameters of the hydrophones are Acquisition channel selection A and or B and or C and or D Sampling frequency 2 5 MS s 1 25 MS s 625 kS s 312 5 kS s 156 25 kS s 78 125 kS s 39 0625 kS s All these frequencies include an anti aliasing filter of 90 dB minimum Configuration examples Table 2 Configuration examples 0 46 169 3 10 j 1 0 46 154 3 ose momtonng asso 169 Pilin 0 AJ 4 25 20 1 24 gt Low power hydrophone inputs The analog inputs and C are connected to two low power acquisition channels to allow the lowest power consumption The gain of these low power inputs is 0 dB Typical characteristics Max Input Level MIL 1 4 dB V 1170 mVpp Sensitivity 113 dB V 2 u V RMS High pass filter
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