Method and system for determining the torque induced in a...

Details Method and system for determining the torque induced in a... Method and system for determining the torque induced in a...

2008-06-13

2010-12-28

Nghiem, Michael P (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Mechanical measurement system

C702S041000

Reexamination Certificate

active

07860665

ABSTRACT:
A rotating shaft has a torsional oscillation frequency that is dependent on the stiffness of the shaft. The torsional oscillation frequency and the stiffness are dependent upon the operating conditions of the shaft. The torque of the rotating shaft is determined by measuring the torsional oscillation frequency of the rotating shaft; measuring the twist induced in the rotating shaft by the torque; and using the measured value of the torsional oscillation frequency and the measured value of the induced twist to determine the torque induced in the shaft.

REFERENCES:
patent: 4525068 (1985-06-01), Mannava et al.
patent: 5438882 (1995-08-01), Karim-Panahi et al.
patent: 6405595 (2002-06-01), Harrison
patent: 2006/0032319 (2006-02-01), Zielinski
patent: 2007/0068279 (2007-03-01), Abele
patent: 2009/0312959 (2009-12-01), Borman
patent: 0 608 993 (1994-08-01), None

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