发明名称 |
Apparatus for shifting reference distance of laser displacement sensor |
摘要 |
An apparatus for shifting a reference distance of a laser displacement sensor is capable of extending the measuring range in a laser displacement sensor having a fixed reference distance and a fixed measurement range by smoothly changing the traveling path of the laser beam by selectively inserting the transparent members having a refraction index different from that of the air into the optical path of the laser beam. The apparatus mounted on the laser displacement sensor provided with a laser beam source for generating a laser beam and a laser beam reception member, includes a transparent member having a refraction index being different from a refraction index of an air and a holder for supporting the transparent member in such a way that the transparent member is placed in an optical path of the laser beam. The transparent member changes a reference distance of the laser displacement sensor by changing the optical path of the laser beam.
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申请公布号 |
US7283254(B2) |
申请公布日期 |
2007.10.16 |
申请号 |
US20030731557 |
申请日期 |
2003.12.08 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
KWAK CHANGSOO;LIM EUL GYOON |
分类号 |
G01B11/14;G01B11/06 |
主分类号 |
G01B11/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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