Optics: measuring and testing – By polarized light examination – With light attenuation
Patent
1996-08-30
1997-09-09
Font, Frank G.
Optics: measuring and testing
By polarized light examination
With light attenuation
356373, 356381, 25055927, G01B 1114, G01B 1106, G01N 2100
Patent
active
056662033
ABSTRACT:
A measurement system for determining a gap of a roll pair by scanning the position of the roll body ends on the side facing away from the roll gap. The system includes a lever bar arranged on a carrying structure and carrying a height-adjustable optical scanning device. A position element is arranged to rest on the roll barrel and is located in the optical beam path between a transmitter and a receiver of the scanning device and changes in the position of the position element can be detected by the scanning device. The transmitter, designed on the basis of a laser, and the receiver, designed as a photo receiver, are located in a common housing, into the interior of which gas can be introduced at an overpressure. The position element is attached in a vertically movable fashion via an articulated lever on the housing and consists of a glide plate resting on the roll barrel and a position measurement plate. The measurement plate is arranged vertically on the glide plate and extends in a freely movable fashion through a slot in the housing wall into the optical beam path between the transmitter and the receiver and at least partially covers it with a sharp measurement edge embodied on the position measurement plate.
REFERENCES:
patent: 3640109 (1972-02-01), Ashton et al.
patent: 3834820 (1974-09-01), Bock
patent: 3902713 (1975-09-01), Von Luhmann et al.
patent: 4182259 (1980-01-01), Garner et al.
patent: 5075622 (1991-12-01), Konii et al.
patent: 5317386 (1994-05-01), Marcus et al.
Font Frank G.
Mannesmann Aktiengesellschaft
Smith Zandra V.
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