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M7 specification

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					M7
The M7 hydrophone can operate at unlimited depths and at temperatures
up to 180 C. The hydrophone is uninsulated and must be used in an
insulating fluid. The M7 was designed for down-hole use.


 Receive Characteristics
Acoustic sensitivity (1 kHz)                -201.5  1.5 dBV re 1Pa @ 20 C and 1 kHz

Capacitance (1 kHz and 20 C)               8.5 nF  15% @ 20 C and 1 kHz

Frequency response                          Tens of Hz up to 20 kHz

 Mechanical Characteristics
Size: diameter, length                      13 mm, 23 mm

Operating and survival depths               unlimited

Acceleration cancelling                     No

Operating and storage temperatures          -40 to +180 °C

Leads                                       Teflon

Electrical resistance between leads         > 1G @ 20 C and 50% humidity

Water blocked                               No

Fluid compatibility                         Insulating fluids




 ADDRESS:                                                                        Phone: 902.406.4111
 10 Akerley Blvd., Unit 19                                                         Fax: 902.435.8987
 Dartmouth, NS                                                          website: www.geospectrum.ca
 Canada B3B 1J4                            June 2006                    e-mail: info@geospectrum.ca

				
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