Measurement and control system for controlling system functions

Details Measurement and control system for controlling system functions Measurement and control system for controlling system functions

1997-10-10

1999-08-03

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

378 4, G01D 534

Patent

active

059328746

ABSTRACT:
A measurement and control system for controlling system functions as a function of rotational parameters of a rotating device includes a plurality of interval markers distributed around the periphery of the rotating device and fixed relative to the device support. The measurement and control system also includes a plurality of sensors attached to the periphery of the rotating device, fixed relative to the rotating device so as to be in close proximity to the interval markers. Measurements from sensors attached to different locations on the rotating device are combined so as to mitigate variations in angular speed of the device. Measured rotational parameters are used to predict, via linear interpolation, angular positions of the device between those positions measured by the sensors.

REFERENCES:
patent: 5231284 (1993-07-01), Mizutani et al.
patent: 5432339 (1995-07-01), Gordon et al.

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