Miniature Probe Hydrophone & AE Sensor
BII7180 Series Miniature
Probe Hydrophone and AE Sensor: Φ1.0 to Φ3.0mm Aperture
Underwater Sounds:
BII7180 series are miniature hydrophones with small aperture size and usable
up to 3 MHz. Conical and omnidirectional directivity patterns are
available. Multiple miniature probe hydrophones can be configured as a vector
hydrophone (vector sensor) or array for uses in extraction of
directional information (source location), measurement of particle velocity, particle
acceleration and pressure gradient.
The probe hydrophones are practical and handy tools for research
and application of Helmholtz Integral Equation in underwater
acoustics and for the measurement of pressure or intensity
distribution of near-field and far-field radiated from vibrational
and acoustical sound sources underwater.
NDT in Solids: receiving audible and
ultrasonic sounds, acoustic emission (AE),
structural health monitoring (SHM), metallurgical properties of
metals, etc... The couplant such as water or gel is a
must-have material to provide efficient acoustic coupling between
the receiving face of the hydrophone and the piece under test (the
subject). The hydrophones can be glued on or
inside subject permanently with adhesives such as epoxy.
NDT in Fluids: uses in waterlike and airlike fluids
for the analysis of their macroscopic and microscopic, physical and
chemical properties.
| Typical
Applications |
|
| Study of Acoustic Radiation Field. |
General Purpose Hydrophone, Reference Hydrophone,
Near-field Calibration. |
| Ultrasonic Testing and Analysis,
Thermoacoustic Tomography. |
Acoustic
Emission (AE), Structural Health Monitoring (SHM). |
| Helmholtz Integral in Acoustics,
Boundary Element Acoustics. |
Trouble-shooting, Maintenance and Development of
Transducers and Array. |
| Vector Hydrophones/Array Elements. |
High Sound Level Measurement (Warning: Cavitation will damage hydrophone). |
| Hydrophone |
Sensitivity,
dB V/μPa |
Frequency
Range |
Directivity
Pattern |
Aperture Size |
No Preamp |
Built-in
Preamp |
| BII7181 |
-224 |
5Hz to 1.3MHz |
Omnidirectional and Toroidal |
Φ2.5x2.2 |
Datasheet |
N/A |
| BII7182 |
-231 |
5Hz to 1.6MHz |
Omnidirectional and Toroidal |
Φ1.5x1.5 |
Datasheet |
N/A |
|
BII7184 |
-217+Preamp Gain |
26Hz to 3.5MHz |
Conical |
Φ3.0 mm |
Datasheet |
Datasheet |
|
BII7185 |
-227+Preamp Gain |
300Hz to 2MHz |
Conical |
Φ1.0 mm |
Datasheet |
Datasheet |
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