Sensor conditioning method and apparatus

Details Sensor conditioning method and apparatus Sensor conditioning method and apparatus

1987-08-21

1989-10-10

Lall, Parshotam S.

Boots, shoes, and leggings

36457102, 36457107, 73 1R, 324207, G01R 710

Patent

active

048736554

ABSTRACT:
An adaptable method and apparatus for calibrating and conditioning sensor output to conform to a desired transfer function is provided. In one form, the invention allows use of a sensor system having nonlinear output characteristics when measuring a physical quantity and provides a response which varies linearly to changes in the physical quantity. In the calibration phase, a look-up table is built based on inputs from the sensor system and a reference transducer which behaves in the desired fashion to changes in the physical quantity. In the operation phase, the sensor system measures the unknown physical quantity and enters the look-up table to determine a corresponding reference value. Thus, the present invention adapts a sensor system to an application without restrictive considerations to individualized operating performance of the sensor system or environment of the application.

REFERENCES:
patent: 4253155 (1981-02-01), Freiday et al.
patent: 4403296 (1983-09-01), Prosky
patent: 4481596 (1984-11-01), Townzen
patent: 4581714 (1986-04-01), Reid
Kondraske et al., "A Microprocessor-Based System for Adaptable Calibration and Linearization of Hall-Effect Position Sensor," Sep. 1986, pp. 338-343.

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