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:
-
- Cedar Crest, NM
- Issue Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- OSTI Identifier:
- 868021
- Patent Number(s):
- 5056067
- Assignee:
- Teleco Oilfield Services Inc. (Meriden, CT)
- Patent Classifications (CPCs):
-
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
G - PHYSICS G10 - MUSICAL INSTRUMENTS G10K - SOUND-PRODUCING DEVICES
- 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 = {Tue Jan 01 00:00:00 EST 1991},
month = {Tue Jan 01 00:00:00 EST 1991}
}