Sensor having an answerback device

Details Sensor having an answerback device Sensor having an answerback device

1988-12-23

1991-04-16

Lall, Parshotam S.

Boots, shoes, and leggings

364550, 36457104, G01L 2500

Patent

active

050088432

ABSTRACT:
A sensor device structurally not combined with an evaluation circuit, for detecting physical magnitudes is equipped with an answerback device, in the memory component of which are stored correction data (sensor identification and characteristic data). The answerback device is connected for the transmission of identification and characteristic data with the evaluation circuit by way of at least two of the lines normally utilized for the measured value transmission and/or the energy supply of the sensor device and by way of a further line serving the transmission of a clock signal and is activatable by the same. With the use of a further measurement line and by a special circuit of the answerback device, correction data can be read-in additionally into the same during a calibration.

REFERENCES:
patent: 3921152 (1975-11-01), Hagar et al.
patent: 4303984 (1981-12-01), Houvig
patent: 4418392 (1983-11-01), Hata
patent: 4831558 (1989-05-01), Shoup et al.
patent: 4845649 (1989-07-01), Eckardt et al.
Sheingold, "Interface Circuits for Sensing Measured Values", Vienna, 1983, pp. 44-53, 204.

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