Automated adjustment of air-core coil inductance
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United States of America Patent
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Dec 25, 1990
Grant Date -
N/A
app pub date -
Dec 28, 1989
filing date -
Dec 28, 1989
priority date (Note) -
Expired
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Abstract
The inductance value of air-core coils are adjusted using automated methods and inexpensive, noncomplicated apparatus. Adjusting tools are provided which displace coil turns in a linear motion with respect to the coil centerline. Specifically, the coil turns can be displaced by sliding perpendicularly to the coil centerline or by rotating a group of coils in order to modify the coil inductance. The adjusting tools used and the method of coil-turn displacement allow the automated method to reincrease the inductance of a coil in the event that displacement causes an over-decrease of inductance.
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