Hemispherical Hydrophone

BII-7040 Series Hemispherical Hydrophone

The BII-7040 series hydrophones provide 60° directivity response approximately at fs resonance, which is designed to detect known sound sources with wide beam angle, and provide omnidirectional directivity response in low frequency range in which the wavelength is much greater than the physical size of the hydrophone. With Hemispherical Hydrophones, noises at certain directions are reduced, and maximum response to signals is at acoustic axial direction. Hemispherical hydrophones are optimum wide beam acoustic receiving apertures for being installed on underwater platforms.

Typical Applications
Directional hydrophone, Sonobuoy Underwater Communication Thermoacoustics in Gas	LBL, SBL, USBL Positioning, Array Element Underwater Sound Recording, Marine Bioacoustic Research Passive Acoustic Monitoring (PAM System)
Related Products
BII-1000 Hydrophone Preamplifier	BII-7000 Omnidirectional Spherical Hydrophone
BII-7120 Low Noise Hydrophone: Below Sea-state Zero	BII-7030 Equalizing Hydrophone and Receiver
BII-7700 Hemispherical Transducer	BII-7760 Spherical Sector Directivity Transducer: up to 60°

Specification

Hemispherical Hydrophone

Hydrophone	Sensitivity, dBV/µPa	Directivity Response	Usable Frequency	Depth Rating	No Preamp
BII7041 Series	-196	Omnidirectional to 60°	1Hz to 200kHz	300 to 900 m	Datasheet
BII7042 Series	-190	Omnidirectional to 60°	1Hz to 100kHz	200m	Datasheet
BII7043 Series	-211	Omnidirectional to 60°	1Hz to 650kHz	500m	Datasheet
BII7044 Series	-197	Omnidirectional to 60°	1Hz to 300kHz	350m	Datasheet
BII7045 Series	-205	Omnidirectional to 60°	1Hz to 480kHz	500m	Datasheet

Service Temperature:	1. Default: -10°C to 60°C, or 14°F to 140°F. 2. Bespoke High Temperature Hydrophone: -10°C to 120°C, or 14°F to 248°F. Append HT to part number.
Information:	Acoustic Components and System: Installation/Mounting, Ordering, Wiring, Array & Aperture Design and much more.

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