Non-contact measurement of displacement and changes in...

Details Non-contact measurement of displacement and changes in... Non-contact measurement of displacement and changes in...

G - Physics

01

B

G01B 11/04 (2006.01) G01B 11/10 (2006.01)

Patent

CA 2127477

Abstract of the Disclosure Methods and apparatus for measuring the lateral displacement and changes in the lateral dimension of thin long objects, particularly filament materials such as wire or various fibers. The material may move quasi-statically or at a high rate of speed. The simplest embodiment of this invention utilizes a light source such as an incandescent lamp, a laser, a light emitting diode, etc., to produce a collimated beam of light. The light traverses the sample region and impinges on a detector including least two precisely separated photosensors arranged at a predetermined angle to the object to monitor and/or measure changes in lateral dimension and displacement detection. Displacement information which can be derived from the method and apparatus can be utilized to determine the vibration and also the tension in a monitored filament or the like. A beam splitter can be used to produce multiple output beams directed to separate detectors.

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