System and method for measurement of dynamic angular or linear d

Details System and method for measurement of dynamic angular or linear d System and method for measurement of dynamic angular or linear d

1980-10-09

1982-09-21

Swisher, S. Clement

Measuring and testing

Miscellaneous

7386234, G01M 1302

Patent

active

043500412

ABSTRACT:
A system and method for measuring linear displacements, especially wear in he coupling of two rotating shafts. A magnetic pickup is located near each shaft and a magnetic pole located at a fixed position on each shaft induces a magnetic pulse in its associated pickup when the pole passes under the pickup. The pulses are fed to an AND gate and produce an output pulse when they overlap. As wear progresses, the magnetic pulses overlap either more or less, depending on the direction of rotation of the shafts and, correspondingly, the AND-gate output pulse duration increases or decreases. The change in AND-gate pulse duration is a measure of coupling wear and can be recorded or displayed in engineering measurement units.

REFERENCES:
patent: 3589178 (1971-06-01), Germann
patent: 3604255 (1971-09-01), Bart

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