Method and apparatus to measure amount of movement using...

Details Method and apparatus to measure amount of movement using... Method and apparatus to measure amount of movement using...

2007-08-14

2007-08-14

Barlow, John (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Reexamination Certificate

active

10958807

ABSTRACT:
A granular speck pattern is generated by a reflecting laser beam as an object to be measured is irradiated with a laser beam. This granular speck pattern is directly picked up as image index by a line sensor. An A/D converter converts an analog signal supplied from the line sensor to a digital signal, a processing unit calculates the amount of movement of the object on the basis of movement of a pixel interval of the granular speck pattern. A display device displays the amount of movement calculated by said processing unit.

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