Cylinder with fiber optical position sensing device and method

Details Cylinder with fiber optical position sensing device and method Cylinder with fiber optical position sensing device and method

2006-03-03

2009-06-30

Lazo, Thomas E (Department: 3745)

Motors: expansible chamber type

With signal, indicator or inspection means

C092S00500L

Reexamination Certificate

active

07552671

ABSTRACT:
An apparatus for sensing movement of a first object relative to a second object. The apparatus includes indicia markings formed on the first object and a sensor capable of reading the indicia markings. A slipper element is secured relative to the sensor and is biased into engagement with the first object. The slipper element maintains the sensor within a predetermined range of distances from the indicia markings on the first object. In one embodiment, the first object is a piston rod of a piston assembly and the second object is a cylinder in which a piston of the piston assembly is located.

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