Apparatus for measuring the protrusion of an end of an optical f

Details Apparatus for measuring the protrusion of an end of an optical f Apparatus for measuring the protrusion of an end of an optical f

1992-06-15

1993-07-06

Cuchlinski, Jr., William A.

Geometrical instruments

Distance measuring

Single contact with a work engaging support

33712, 33555, G01B 514

Patent

active

052242757

ABSTRACT:
An apparatus is provided for measuring the distance an optical fiber terminated in a connector protrudes from a component of the connector such as a ferrule or the like. A fixed abutment member defines an abutment surface against which the connector component can be moved into engagement. A movable measuring member is mounted for movement relative to the fixed abutment member and is engageable by a distal end of the optical fiber as the connector component is moved into engagement with the abutment surface of the fixed abutment member. Therefore, the amount of relative movement between the movable measuring member and the fixed abutment member directly corresponds to the distance the optical fiber protrudes from the connector component. Calculating electronics are operatively associated with at least the movable measuring member for calculating its amount of movement and, thereby, the protruding distance of the optical fiber. The electronics includes providing a portion of the movable measuring member and a portion of the fixed abutment member as capacitor plates and the capacitance thereof is utilized to calculate the protruding distance of the optical fiber.

REFERENCES:
patent: 2560571 (1951-07-01), Hawkins
patent: 3183597 (1965-05-01), Donaldson et al.
patent: 3334419 (1967-08-01), Jaye
patent: 3413726 (1968-12-01), Sankovich
patent: 3848339 (1974-11-01), Strasbaugh
patent: 4653191 (1987-03-01), Gasser
patent: 4930226 (1990-06-01), Shindelar
patent: 4993167 (1991-02-01), Durfee, Jr.
patent: 5077909 (1992-01-01), Cranor

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