Electrical resistors – Mechanically variable – With electromagnetic operator
Patent
1977-07-06
1979-07-24
Albritton, C. L.
Electrical resistors
Mechanically variable
With electromagnetic operator
338160, H01C 1014
Patent
active
041624726
ABSTRACT:
An electromechanical transducer comprises first and second links pivotally connected to a base, an electrical resistance element in the form of a track mounted on the base and a wiper arm mounted at one end of the second link and slidingly engaging the track. The first link and the second link are so coupled that pivoting one link is operative to pivot the other link and the angle through which the second link pivots is substantially greater than the angle through which the first link pivots. By suitable selection of the shape and/or the resistance profile of the track, the angular movement of the first link may be arranged to be a particular linear or non-linear function of the resistance tapped by the wiper arm. A control unit incorporating the transducer is also described.
REFERENCES:
patent: 813262 (1906-02-01), Warden et al.
patent: 2515981 (1950-07-01), Bourns
patent: 2544328 (1951-03-01), Keroes
patent: 2884504 (1959-04-01), Morton
Constable Philip J.
Turner Roy C.
Albritton C. L.
Drayton Controls (Engineering) Limited
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