H - Electricity
04
R
H04R 17/00 (2006.01) B06B 1/06 (2006.01) G01L 9/00 (2006.01) G01V 1/18 (2006.01) H04R 31/00 (2006.01)
Patent
CA 2103598
Abstract of the disclosure A hydrophone is specified, especially for use in a marine seismic streamer, in which a pressure sensor is used, on the outer membrane surfaces of which piezoelectric sensors (4, 5) are secured. According to the invention, the pressure sensor is formed from two substantially disk shaped steel disks (1, 2), which are directed toward one another at a spacing in the central region and which are welded at the edge side in a gastight manner, especially by means of laser welding, in which hydrophone the pressure sensor is electrically insulated with respect to its external environment by a synthetic resin coating, which may embrace the entire pressure sensors including the insulations of the con- necting lines. The hydrophone may be manufactured go as to be small in dimensions and weight, is mechanically sturdy and to a large extent capable of withstanding overload, as well as being protected by synthetic resin coating against short circuiting and corrosion. (Fig. 1)
Technau Manfred
Weichart Helmut
Prakla-Seismos Gmbh
Ridout & Maybee Llp
Technau Manfred
Weichart Helmut
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