Akustischer Sender für Bohrlöcher

An acoustic transmitter for use in a borehole logging tool employs multiple Helmholtz resonators stacked such that apertures in opposite sides of each of the resonators are in linear alignment so as to provide increased acoustic energy output over a broad band of low frequency seismic frequencies.

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Bibliographische Detailangaben
Hauptverfasser:	MEDLIN, WILLIAM LOUIS, DALLAS, TEXAS 75248, US, RING, GARY ALLEN, SANGER, TEXAS 76266, US
Format:	Patent
Sprache:	ger
Schlagworte:	DETECTING MASSES OR OBJECTS FOR PERFORMING MECHANICAL WORK IN GENERAL GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY PERFORMING OPERATIONS PHYSICS TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	An acoustic transmitter for use in a borehole logging tool employs multiple Helmholtz resonators stacked such that apertures in opposite sides of each of the resonators are in linear alignment so as to provide increased acoustic energy output over a broad band of low frequency seismic frequencies.