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Title: Biasing and fast degaussing circuit for magnetic materials

Patent ·
OSTI ID:6920696

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.

DOE Contract Number:
AC05-84OR21400
Assignee:
Dept of Energy
Application Number:
ON: DE84011281
OSTI ID:
6920696
Resource Relation:
Other Information: Portions are illegible in microfiche products
Country of Publication:
United States
Language:
English