Instrumentation power supply and read unit for testing gearboxes

Details Instrumentation power supply and read unit for testing gearboxes Instrumentation power supply and read unit for testing gearboxes

1996-11-06

1997-08-26

Trammell, James P.

Boots, shoes, and leggings

364508, 364572, G01R 2300

Patent

active

056616597

ABSTRACT:
An electronic board for cooperation with a computer and a group of noise measuring instruments, for displaying side by side noise curves for various gear pairs of a gearbox for differing frequencies selected by filter means (15,21,20,17,19,18,23) in an audio frequency band, to which the human ear is sensitive. A frequency sensitive Fourier analysis is conducted continually at chosen rpm steps spaced over the desired range, in order to produce the curves. Noise inherent in a design of transmission, or only present in isolated samples thereof thereby denoting wear or other defect or damage, can thus be investigated, analyzed and possible remedies applied.

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patent: 4872337 (1989-10-01), Watts et al.
patent: 4931949 (1990-06-01), Hernandez et al.
patent: 4980844 (1990-12-01), Demjanenko et al.
patent: 4988979 (1991-01-01), Sasaki et al.
patent: 4989159 (1991-01-01), Liszka et al.

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