Servo controlled tape indicating device

Details Servo controlled tape indicating device Servo controlled tape indicating device

1977-03-28

1979-08-14

Truhe, J. V.

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

3403785, 324150, G08B 500

Patent

active

041646959

ABSTRACT:
A servo controlled strip or tape linear indicating device is described in which a substantially nonresilient and nonself-supporting strip or tape is connected to servo motor means by a single attachment member at a fixed position along the length of the strip or tape. The strip or tape is freely slidable in a guide channel along its entire length and in all positions. The tape is visible with respect to a pointer through at least one transparent portion in the guide channel. The edges of the strip define with the guide channel play sufficient to prevent bunching or buckling of the strip. The servo motor means comprises D'Arsonval type motor having movable coil displaceable in an air gap of a magnetic circuit with fixed pole pieces.

REFERENCES:
patent: 3497806 (1970-02-01), Nador et al.
patent: 3696386 (1972-10-01), Gear
patent: 4051728 (1977-10-01), Metz

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