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Title: Analog circuit for controlling acoustic transducer arrays

Abstract

A simplified ananlog circuit is presented for controlling electromechanical transducer pairs in an acoustic telemetry system. The analog circuit of this invention comprises a single electrical resistor which replaces all of the digital components in a known digital circuit. In accordance with this invention, a first transducer in a transducer pair of array is driven in series with the resistor. The voltage drop across this resistor is then amplified and used to drive the second transducer. The voltage drop across the resistor is proportional and in phase with the current to the transducer. This current is approximately 90 degrees out of phase with the driving voltage to the transducer. This phase shift replaces the digital delay required by the digital control circuit of the prior art.

Inventors:
 [1]
  1. Cedar Crest, NM
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA
OSTI Identifier:
868021
Patent Number(s):
5056067
Assignee:
Teleco Oilfield Services Inc. (Meriden, CT)
DOE Contract Number:  
AC04-76
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
analog; circuit; controlling; acoustic; transducer; arrays; simplified; ananlog; electromechanical; pairs; telemetry; comprises; single; electrical; resistor; replaces; digital; components; accordance; pair; array; driven; series; voltage; drop; amplified; drive; proportional; phase; current; approximately; 90; degrees; driving; shift; delay; required; control; prior; acoustic transducer; phase shift; control circuit; voltage drop; single electrical; analog circuit; digital control; acoustic telemetry; electromechanical transducer; mechanical transducer; transducer array; digital delay; /367/340/

Citation Formats

Drumheller, Douglas S. Analog circuit for controlling acoustic transducer arrays. United States: N. p., 1991. Web.
Drumheller, Douglas S. Analog circuit for controlling acoustic transducer arrays. United States.
Drumheller, Douglas S. Tue . "Analog circuit for controlling acoustic transducer arrays". United States. https://www.osti.gov/servlets/purl/868021.
@article{osti_868021,
title = {Analog circuit for controlling acoustic transducer arrays},
author = {Drumheller, Douglas S},
abstractNote = {A simplified ananlog circuit is presented for controlling electromechanical transducer pairs in an acoustic telemetry system. The analog circuit of this invention comprises a single electrical resistor which replaces all of the digital components in a known digital circuit. In accordance with this invention, a first transducer in a transducer pair of array is driven in series with the resistor. The voltage drop across this resistor is then amplified and used to drive the second transducer. The voltage drop across the resistor is proportional and in phase with the current to the transducer. This current is approximately 90 degrees out of phase with the driving voltage to the transducer. This phase shift replaces the digital delay required by the digital control circuit of the prior art.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {1}
}

Patent:

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