Sensor system for contactless distance measuring

Details Sensor system for contactless distance measuring Sensor system for contactless distance measuring

1994-08-10

1996-02-06

Wieder, Kenneth A.

Communications: electrical

Condition responsive indicating system

With particular coupling link

340572, 324662, 324611, G08B 108

Patent

active

054898889

ABSTRACT:
A sensor system is disclosed for the contactless measuring of the distance between a sensor body and an object. The sensor body contains an identification resistor, the resistance value of which can be interrogated by a control unit which is connected to the sensor body and which is located outside the sensor body. The interrogation makes it possible to determine whether the electrical connection between the control unit and the sensor body exists or is interrupted. If it is interrupted, this can be detected by the control unit in an unambiguous manner due to the missing connection to the identification resistor, and the control unit can generate an alarm signal in order to avoid faulty positioning of the sensor body relative to the object.

REFERENCES:
patent: 4295132 (1981-10-01), Burney
patent: 4401949 (1983-08-01), Gold
patent: 4467273 (1984-08-01), Rudolph
patent: 4575714 (1986-03-01), Rummel

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