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HYDROPHONE


Brief Description

This is an under water acoustic sensor module with extended gate MOSFET and a piezo sensor assembled as a hybrid module

An opamp is used to amplify the signal

MOSFET is of low leakage current specially designed and developed for this application

SU8 dielectric is used to minimize the parasitic capacitances.

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Specifications
  • Receiving Sensitivity : -185 dB re 1V/ µPa
  • Accuracy : +/- 2 dB
  • Frequency : 1kHz – 20kHz
  • Depth : 400 M
  • Temperature : 4 – 40 o C
  • Extended Gate depletion mode NMOSFET
  • Low leakage current
  • Thick film hybrid module for complete functionality
  • Die size : 8 mm x 10 mm
  • Application: Underwater acoustic sensing

Contacts

Semiconductor Technology and Applied Research Centre
(A unit of SITAR -Govt. of INDIA)
PO Box No.1640, off Old Madras Road,
Doorvani Nagar P.O.,
Bangalore 560 016, India.


Phone: 91 80 25653588
Fax: 91 80 25653590
Email: mail@sitarindia.com
URL: www.sitar.org.in