Method for a self-monitoring transducer

Details Method for a self-monitoring transducer Method for a self-monitoring transducer

1989-01-23

1990-01-30

Raevis, Robert R.

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

73 4R, G01L 2700

Patent

active

048965251

ABSTRACT:
A method for the self monitoring transducer in which approximate calibration of the transducer does not require physical disconnection of the measuring chain so that the transducer need not be uncoupled to be measured. The method permits monitoring the transducer during its operation by modulating at least one predetermined quantity h.sub.i with a suitable actor. The measuring signal associated with the individual modulation quantities are used to monitor and calibrate the transducer.

REFERENCES:
patent: 3657926 (1972-04-01), Munson et al.
patent: 4610256 (1986-09-01), Wallace
patent: 4692696 (1987-09-01), Bray
VDI Berichte, No. 566 (1985) pp. 361-362 (no translation).
Paper by R. K. Chohan, et al. "Understanding the Dynamic Response of Industrial Temperatures Sensors: An Approach Based on Mathematical Models", Tavistock (1983), pp. 1-10.

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