Nonferromagnetic linear variable differential transformer

Details Nonferromagnetic linear variable differential transformer Nonferromagnetic linear variable differential transformer

1976-07-20

1977-06-14

Habecker, Thomas B.

Communications: electrical

Digital comparator systems

176 23, 323 53, G08C 1908

Patent

active

040300854

ABSTRACT:
A nonferromagnetic linear variable differential transformer for accurately measuring mechanical displacements in the presence of high magnetic fields is provided. The device utilizes a movable primary coil inside a fixed secondary coil that consists of two series-opposed windings. Operation is such that the secondary output voltage is maintained in phase (depending on polarity) with the primary voltage. The transducer is well-suited to long cable runs and is useful for measuring small displacements in the presence of high or alternating magnetic fields.

REFERENCES:
patent: 2452862 (1948-11-01), Neff
patent: 2503851 (1950-04-01), Snow
patent: 3898635 (1975-08-01), Kulterman

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