Magneto-resistive tachometer assembly with reversible cover and

Details Magneto-resistive tachometer assembly with reversible cover and Magneto-resistive tachometer assembly with reversible cover and

1992-11-20

1994-08-09

Snow, Walter E.

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

324262, 206328, 295921, G01R 100, H01S 400, B65D 8100

Patent

active

053369947

ABSTRACT:
A tachometer assembly for monitoring the rotation of an output shaft for measuring the rotational velocity and position of rotating shafts, and more specifically, to a magneto-resistive tachometer assembly which incorporates a dual purpose cover which, during normal use, fits over the tachometer drum and electronic sensor package to give physical protection to the unit. In a shipping mode, however, the cover is reversed and performs the function of an alignment tool in that a radial gap between the magnetic drum and magneto-resistive sensor may be preset at the factory during assembly of the unit. Reversal of the cover to its normal in use position is done in such a way that the preset radial gap is undisturbed.

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