BENTHOWAVE INSTRUMENT INC. Acoustic Transducer & System
Directional Hydrophone
BII7070 Series Directional Hydrophone (Acoustic Sensor) and Planar Array Element
BII's directional hydrophones have conical beams for uses in detection of weak signals,
broadband signals, pipeline leaks, and tracking of sound sources
underwater.
Low noise hydrophone (below sea-state zero) is available
for noise measurement. These acoustic sensors are also designed for applications in air to
detect acoustic emission and stress waves. (Note: The couplant such as water
or gel is a must-have material to provide efficient acoustic
coupling between the
Hydrophone face and the piece under test in air
applications.)
Below the critical frequency fc, the hydrophones are of single beam without side
lobes. This feature makes the hydrophone be an ideal candidate for target
angle estimation systems or sound source tracking systems.
With
built-in
preamplifiers, the hydrophones have higher
sensitivity and can transmit signal over long cable.
| Typical Applications | |
| Direction-finding Sonar,
Tracking of Acoustic Tags LBL/SBL/USBL Positioning System Locating Marker/Pinger/Beacon/Transponder Acoustic Pipeline Leak Detection |
Array elements for Array Focusing and Beam Steering Noise Measurement, Bioacoustic Research of Marine Animals Structural Health Monitoring, Acoustic Emission Detection/AE Sensor Monitoring Aquarium/Pool Safety/Alarm System |
| Related Products | |
| BII-7120 Low Noise Low Power Hydrophone | Underwater Transducer: SONAR, NDT, and HIFU |
| BII-7180 Miniature Probe Hydrophone | BII-7230 AE Sensor: Wideband Detection |
Specification
| Directional Hydrophone and Planar Array Element |
| Usable Frequency | Sensitivity, dBV/µPa | Beam Pattern | Features | No Preamp | With Preamp |
| Up to 300kHz | -190.0 + Preamp Gain | Conical | 300 to 950m, 60° to 120°C or 248°F | Datasheet | Datasheet |
| Up to 450kHz | -194.0 + Preamp Gain | Conical | 300 to 950m, 60° to 120°C or 248°F | Datasheet | Datasheet |
| Up to 100kHz | -183.4 + Preamp Gain | Conical |
50m,
Self-noise is below sea-state zero. 23 dB μPa/√Hz at 1kHz |
N/A | Datasheet |
|
| Bespoke Beamwidth: | Hydrophone size can be customized to meet specific -3dB beamwidth. |
| Information: | Acoustic Components and System: Installation/Mounting, Ordering, Wiring, Array & Aperture Design and much more. |