Benthowave Instrument Inc.

BENTHOWAVE INSTRUMENT INC. Acoustic Transducer & System 

Low Flow Noise Hydrophone

Low Flow Noise HydrophoneLow Flow Noise HydrophoneLow Flow Noise HydrophoneLow Flow Noise HydrophoneLow Flow Noise Hydrophone

Optional mounting parts are available for installation on portable-mounting apparatus, submersibles, pipe, tank or vessel.

BII-7160 Low Flow Noise Hydrophone

Suggested Application  
Signal detection in strong currents
Natural, Anthropogenic and Bioacoustic Underwater Sounds
Hydrophone Array and Passive SONAR
Detection of Explosive Sound Sources and Air Guns
Passive Acoustic Monitoring System (PAM System)
Towed Arrays, Streamer Element
Sonobuoy
Seismic Exploration / Borehole Seismic

Features  
Low hydrodynamic flow noise and pseudosound
Streamlined hydrophone body
Drive long cable
Minimize turbulent flow and onset of cavitation
Minimize current-produced noise
Low interference to signal field

Related Products BII-1000 Hydrophone Preamplifier

Specification

BII-7160 Series Hydrophone without Preamplifier
Signal Loss over Extension Cable (dB) = 20*log[Ch/(Ch+Cc)]; Ch: Hydrophone Capacitance; Cc: Capacitance of Extension Cable. Cable is of 100pF/meter roughly. Valid for hydrophone without preamplifier.
Hydrophone OCV, TVR, Directivity Usable
Frequency
Capacitance
nF
Output
Type
Acceleration
Sensitivity
dBµPa/(m/s²)
Depth
Rating
Size
ΦDxL
mm
Weight
gram
BII-7161 OCV, Directivity 1Hz to 60kHz 13.5 SE 104.2 300m Φ32x60 38g
BII-7161DF OCV, Directivity 1Hz to 60kHz 2.6 DF 104.2 300m Φ32x60 38g
BII-7162 OCV, Directivity 1Hz to 140kHz 11.2 SE 107.4 300m Φ32x60 35g
BII-7162DF OCV, Directivity 1Hz to 140kHz 2.8 DF 107.4 300m Φ32x60 35g
Note: BII-7161, BII-7162 can be used as low power projectors. Maximum driving voltage < 50 Vrms.
Others can NOT be used as projectors.
Output Type: Single Ended Output (SE); Differential Output (DF).
Cable Length: 1. 6m (default)
2. Custom:≤100m
Cable Options: 1. Default:
    for SE output: Coax (ΦD=2.8mm) (Coax);
    for DF output: Shielded cable with two conductors (ΦD=3.6mm) (SC36)
2. Shielded cable with two conductors (ΦD=3.6mm) (SC36)
3. Shielded cable with two conductors (ΦD=6.5mm) (SC65)
   
BII-7160 Series Hydrophone with Preamplifier
Note: Hydrophone Size with two ΦDxL: first ΦDxL is the size of sensing element, second ΦDxL is the size of preamplifier housing.
Hydrophone OCV&Directivity Usable
Frequency
Noise Density
RTI @ 1kHz
dBµPa/√Hz
Beamwidth
HorizontalxVertical
Acceleration
Sensitivity
dBµPa/(m/s²)
Depth
Rating
Size
ΦDxL
mm
Weight
gram
BII-7165 OCV, Directivity 1Hz to 60kHz 28 OCV, Directivity 104 300m Φ32x60 250
BII-7166 OCV, Directivity 1Hz to 140kHz 36 OCV, Directivity 107 300m Φ32x60 250
Preamplifier Gain: Options: 0/26/40/60dB, preamplifier dependent. Specify when ordering.
Built-in Preamplifier: BII-1000 Series Hydrophone Preamplifier.
1. Default: BII-1060 series preamplifier. 2. Customized: Specify when ordering.
Overload Pressure Level: 20*log(Maximum Output/2.828) - Sensitivity, (dB μPa).
Filter: Customized high pass filter. Specify -3dB cut-off frequency when ordering.
Output Type: 1. Default: Single Ended Output (SE), Append SE to the listed part number.
2. Differential Output (DF), Append DF to the listed part number.
Maximum Output: Maximum Output of the built-in preamplifier, Vpp.
Suggested DC Supply: +9VDC Battery, Marine Battery, Automobile Battery, Fixed DC Linear Power Supply, Not Included.
DO NOT use variable power supply whose maximum supply voltage is higher than the rated voltage.
DO NOT use switching mode DC power supply.
Supply Voltage: +4.5 to +30VDC, preamplifier dependent.
Current (Quiescent): Preamplifier dependent. Refer to BII-1000 Series Hydrophone Preamplifier.
Cable Length: 1. Default: 10m
2. Custom: up to 1000m
Cable: 1. Shielded Cable (ΦD=6.5mm) (SC)
2. Wire/Cable Bundle (WCB): for use with Thru-hole Mounting ONLY.
   
Miscellaneous: BII-7160 Series Hydrophone
Mounting Options: 1. Default: Free Hanging (FH)
2. Free-hanging with Male Underwater Connector (FHUWC)
3. Thru-hole Mounting with Single O-ring (THSO)
4. Thru-hole Mounting with Double O-ring (THDO)
5. Bolt Fastening Mounting (Plastics): (BFMP)
6. Bolt Fastening Mounting (Stainless Steel): (BFMSS)
7. Thru-hole Mounting + Free Hanging (THFH)
Click
Transducer and Hydrophone Mounting for more detailed information on mounting/installation.
Connector: 1. Default: Wire Leads (WL)
2. BNC Male (BNC)
3. 3.5 mm (⅛″) TRS Plug (TRS35)
4. ¼″ (6.35 mm) TRS Plug (TRS635)
5. XLR Plug (XLR)
6. Underwater Mateable Connector (UMC)
7. MIL-5015 Style (5015)
8. +9VDC Battery Snap (BS) (Exclusive to preamplified hydrophone)

9. Custom (custom)
Operating Temperature: -10°C to +60°C
Storage Temperature: -40°C to +60°C
How to Order: Click How to Order.
Hydrophone Wiring: Click Hydrophone Wiring for detailed wiring information.
Receiving Array: Array & Aperture Design

Go back to Hydrophone.