System for interfacing a single sensor unit with multiple data p

Details System for interfacing a single sensor unit with multiple data p System for interfacing a single sensor unit with multiple data p

1991-02-04

1992-09-01

Yasich, Daniel M.

Thermal measuring and testing

Temperature measurement

By electrical or magnetic heat sensor

73295, 307310, 364557, G01K 700, G01K 300

Patent

active

051434520

ABSTRACT:
A fault-tolerant system for interfacing a single sensor unit to multiple display/control modules. The system includes a fixed resistor connected in series with the sensor unit and multiple data centralization units each including a source for providing a separate excitation signal to the sensor unit. The data centralization units also include detection circuits for measuring the voltage drop across the fixed resistor. The output from the sensor unit is adjusted according to the level of excitation provided to the sensor unit so that accurate measurements can be taken despite one or more data centralization units being non-operational.

REFERENCES:
patent: 4621228 (1986-11-01), Toki et al.
patent: 4825383 (1989-04-01), Ory
patent: 4875176 (1989-10-01), Harsch et al.
patent: 4943797 (1990-07-01), Steffenhagen
patent: 5001928 (1991-03-01), Ogasawara
patent: 5051615 (1991-09-01), Rosenthal

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