3-D Shape measurement using constant gap control

The optical laser displacement sensor is a measurement sensor that is widely used to measure the 3-D shape profile of the object surface as a non-contact type. When the surface of objects has large slope variation, the sensor gain is varied with respect to the slope variation of the object surface....

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Bibliographic Details
Published in2007 IEEE/ASME international conference on advanced intelligent mechatronics pp. 1 - 6
Main Authors Kyihwan Park, Kyosoon Choi, Woosub Yeom, Sangyou Kim, Heesun Yoon
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2007
Subjects
3-D Shape measurement
Biomedical optical imaging
Constant Gap Control Method
Constant Sensor Height Method
Displacement measurement
Gas detectors
Index Terms
Laser beams
Lenses
Optical sensors
Sensor Gain Variation
Sensor phenomena and characterization
Shape control
Shape measurement
Surface emitting lasers
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Summary:The optical laser displacement sensor is a measurement sensor that is widely used to measure the 3-D shape profile of the object surface as a non-contact type. When the surface of objects has large slope variation, the sensor gain is varied with respect to the slope variation of the object surface. In order to solve the sensor gain variation problem for the object surface having the slope variation, the constant gap control method can be applied to adjust the gap to the nominal distance. Then, compared with the constant sensor height method, the constant gap control method can reduce the variation of the sensor gain. It can also reduce the measurement range of the sensor, so the accuracy of height measurement increases.
ISBN:1424412633
9781424412631
ISSN:2159-6247
2159-6255
DOI:10.1109/AIM.2007.4412600