Electricity: measuring and testing – Conductor identification or location – Inaccessible
Patent
1978-10-05
1981-01-27
Krawczewicz, Stanley T.
Electricity: measuring and testing
Conductor identification or location
Inaccessible
340524, 34087038, G01R 2702
Patent
active
042478162
ABSTRACT:
This invention relates to a potentiometer with a digital display indicating the position of the potentiometer slider. In a known potentiometer of this type, a mechanical multidigit counter is mounted outside the potentiometer housing on the shaft carrying the slider. However, since the counter is mounted on the potentiometer shaft proper, the potentiometer must be inconveniently mounted in an apparatus at a point at which the counter can be read. Another disadvantage of the known potentiometer results from the fact that restrictions exist for the scale of the counter. The present invention provides a potentiometer of the above-specified type which is of simple design and is more versatile than known potentiometers. The advantage of the potentiometer according to this invention is that the display means can be mounted at a point remote from the potentiometer. In a preferred embodiment of the invention, a voltage divider is inserted before the input of an analog-to-digital converter which drives a digital readout device. By appropriately dimensioning the voltage divider, a certain predetermined range of the counter can be obtained in a simple manner.
REFERENCES:
patent: 3382433 (1968-05-01), Escue
patent: 3786350 (1974-01-01), Munt
Harrer Josef B.
Jagers Anton
Petsch Roland
Pracher Ernst
Krawczewicz Stanley T.
Litton Systems Inc.
Ribando Brian L.
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