HNR-series Needle Hydrophone

The HNR Series needle hydrophones are excellent sensors for laboratory use in high intensity ultrasonic field mapping, with pinpoint access and good spatial resolution.  Due to their high sensitivity these hydrophones are commonly operated without amplification.

Key Features and Benefits
  • Piezoceramic sensing element
  • Needle shape with low reflection profile
  • High sensitivity
  • Integral cable with BNC connector
  • Various apertures available
The HNR Series needle hydrophones are excellent sensors for laboratory use in high intensity ultrasonic field mapping, with pinpoint access and good spatial resolution. Due to their high sensitivity these hydrophones are commonly operated without amplification.
HNR-0500 HNR-1000
Frequency range (±6dB) 0.25 to 10 MHz
* EOC Nominal Sensitivity [dB re 1V/μPa] -258 -248
* EOC Nominal Sensitivity [nV/Pa] 126 398
Acceptance angle (-6dB at 5 MHz) 30° 15°
Capacitance 200 pF
Max. Operating Temperature 50 °C

* EOC ("end of cable") is the open-circuit output sensitivity of the hydrophone. Calibration with an amplifier can be determined from the gain and input impedance of the amplifier.

Provided with traceable calibration 1-20 MHz at 50 KHz intervals. For other calibrations available visit our web site.

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Related Resources

HNR Hydrophones Data Sheet

HNR Hydrophones Data Sheet

Get technical specs and information on the HNR Series Hydrophones by Onda.

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