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Title: Biasing and fast degaussing circuit for magnetic materials

Abstract

A dual-function circuit is provided which may be used to both magnetically bias and alternately, quickly degauss a magnetic device. The circuit may be magnetically coupled or directly connected electrically to a magnetic device, such as a magnetostrictive transducer, to magnetically bias the device by applying a dc current and alternately apply a selectively damped ac current to the device to degauss the device. The circuit is of particular value in many systems which use magnetostrictive transducers for ultrasonic transmission in different propagation modes over very short time periods.

Inventors:
;
Issue Date:
OSTI Identifier:
6920696
Application Number:
ON: DE84011281
Assignee:
Dept of Energy ERA-09-026754; EDB-84-085127
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Resource Relation:
Other Information: Portions are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; DEMAGNETIZATION; MAGNETIC MATERIALS; MAGNETOSTRICTION; TRANSDUCERS; MAGNETIC PROPERTIES; MATERIALS; PHYSICAL PROPERTIES 420800* -- Engineering-- Electronic Circuits & Devices-- (-1989)

Citation Formats

Dress, W.B. Jr., and McNeilly, D.R. Biasing and fast degaussing circuit for magnetic materials. United States: N. p., 1983. Web.
Dress, W.B. Jr., & McNeilly, D.R. Biasing and fast degaussing circuit for magnetic materials. United States.
Dress, W.B. Jr., and McNeilly, D.R. Tue . "Biasing and fast degaussing circuit for magnetic materials". United States.
@article{osti_6920696,
title = {Biasing and fast degaussing circuit for magnetic materials},
author = {Dress, W.B. Jr. and McNeilly, D.R.},
abstractNote = {A dual-function circuit is provided which may be used to both magnetically bias and alternately, quickly degauss a magnetic device. The circuit may be magnetically coupled or directly connected electrically to a magnetic device, such as a magnetostrictive transducer, to magnetically bias the device by applying a dc current and alternately apply a selectively damped ac current to the device to degauss the device. The circuit is of particular value in many systems which use magnetostrictive transducers for ultrasonic transmission in different propagation modes over very short time periods.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {10}
}