Grasping finger position sensor for a robot system

Details Grasping finger position sensor for a robot system Grasping finger position sensor for a robot system

1986-02-18

1987-07-28

Cherry, Johnny D.

Handling: hand and hoist-line implements

Grapple

Load shifting

294907, 901 31, 901 46, B25J 1508, B25J 1902

Patent

active

046828052

ABSTRACT:
The position sensor senses the position of a movable finger in relation to a cooperating finger. The position sensor includes a variable reactance device including two cooperating relatively movable reactance elements. One of the reactance elements is mechanically coupled to the movable finger and the other one of the reactance elements is mechanically coupled to a cooperating finger. The relative movement between the reactance elements is effective to vary the reactance of the variable reactance device. An oscillator circuit is connected with the variable reactance device so that the frequency of the oscillator circuit varies to provide a variable frequency output which represents the position of the movable finger with respect to the cooperating finger.

REFERENCES:
patent: 3100889 (1963-08-01), Cannon
patent: 3755909 (1973-09-01), Asano et al.
patent: 4509783 (1985-04-01), Ionescu
patent: 4538669 (1985-09-01), Markarian et al.
patent: 4577509 (1986-03-01), Moser
patent: 4600357 (1986-07-01), Coules

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