Noise measuring device for a differential gear assembly

Details Noise measuring device for a differential gear assembly Noise measuring device for a differential gear assembly

1996-08-21

1998-03-17

Chapman, John E.

Measuring and testing

Vibration

By mechanical waves

73162, G01M 1302

Patent

active

057289387

ABSTRACT:
A noise measuring device for a differential gear assembly which measures a noise generated from a differential gear under simulated driving conditions. The noise measuring device for the differential gear assembly includes: a driving motor for rotating a differential gear in a differential assembly; a braking apparatus comprised of a brake drum, a brake lining, and a brake operation knob, for providing a load of a driving condition to the differential gear; and sound sensing apparatus comprised of a sound level meter and a frequency analyzer, for measuring a noise from the differential assembly; and a driving condition sensing apparatus comprised of a torque sensor, an RPM sensor, and an A/D converter, for sensing the driving condition through the differential gear.

REFERENCES:
patent: 3127767 (1964-04-01), Kamp
patent: 3894429 (1975-07-01), Konersmann et al.
patent: 4196620 (1980-04-01), Dapiran
patent: 4236407 (1980-12-01), Alpini et al.
patent: 4649743 (1987-03-01), Sugimoto et al.
patent: 4788856 (1988-12-01), Felger
patent: 5574646 (1996-11-01), Kawasaki et al.

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