Rotor speed estimator

Details Rotor speed estimator Rotor speed estimator

1997-08-21

1998-09-08

Williams, Hezron E.

Measuring and testing

Speed, velocity, or acceleration

73137, 73116, 324160, 361236, 361239, 364565, 36457104, 36457105, 364570, G01P 1100

Patent

active

058047247

ABSTRACT:
A method for accurately estimating the rotational speed of a machine includes the steps of initializing a counter, measuring a position of the machine, incrementing the counter, waiting for a position update, measuring a next position of the machine, calculating a difference between the position measurement, measuring the amount of time elapse between positions, returning to the step of incrementing to the counter if the difference is less than a predetermined amount, returning to the step of incrementing the counter if the amount of time is less than a predetermined time, dividing the difference by the amount of time to determine the estimated rotational speed of the machine, and outputing the estimated rotational speed of the machine.

REFERENCES:
patent: 4055993 (1977-11-01), Rackliffe et al.
patent: 4274142 (1981-06-01), Furuhashi et al.
patent: 4444285 (1984-04-01), Stewart et al.
patent: 4495451 (1985-01-01), Barnard
patent: 4533011 (1985-08-01), Heidemeyer et al.
patent: 4631456 (1986-12-01), Drescher et al.
patent: 4900962 (1990-02-01), Hockney et al.
patent: 4961352 (1990-10-01), Downer et al.
patent: 5172784 (1992-12-01), Verela, Jr.
patent: 5255733 (1993-10-01), King
patent: 5291975 (1994-03-01), Johnson et al.
patent: 5318142 (1994-06-01), Bates et al.
patent: 5319273 (1994-06-01), Hockney et al.
patent: 5327987 (1994-07-01), Abdelmalek
patent: 5345761 (1994-09-01), King et al.
patent: 5353656 (1994-10-01), Hawkey et al.
patent: 5396140 (1995-03-01), Goldie et al.
patent: 5415245 (1995-05-01), Hammond
patent: 5442288 (1995-08-01), Fenn et al.
patent: 5465015 (1995-11-01), Anastas et al.
patent: 5479811 (1996-01-01), Baumann et al.
patent: 5539308 (1996-07-01), Teramae et al.
Popular Science Magazine, Emerging Technologies for the Supercar, Jun. 1994.
NASA Tech Briefs, The Digest of New Technology, Jun. 1995, vol. 19, No. 6, pp. 12 and 13.

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