GEOPHONE TREATMENT

Disclosed is a method of manufacturing a motion sensitive detector of the type having a receptacle with a cylindrical chamber, a transducer, and an inflated envelope. In the method the receptacle is first filled by weight with an acoustic transmission compound and thereafter the transducer and infla...

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Bibliographische Detailangaben
1. Verfasser:	MORRIS H,US
Format:	Patent
Sprache:	eng
Schlagworte:	DETECTING MASSES OR OBJECTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING PHYSICS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TESTING
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Beschreibung
Zusammenfassung:	Disclosed is a method of manufacturing a motion sensitive detector of the type having a receptacle with a cylindrical chamber, a transducer, and an inflated envelope. In the method the receptacle is first filled by weight with an acoustic transmission compound and thereafter the transducer and inflated envelope are mounted in the receptacle. The receptacle is vented to the atmosphere and centrifuged to degas the acoustic transmission compound. Next, air is evacuated from the top of the receptacle and the receptacle is sealed. The inflated envelope is then evacuated and the centrifuge process repeated with the receptacle sealed to form a void in the top of the receptacle about 0.1 to 0.2 inches high.