Laser feed-back displacement sensor based on frequency locked double-frequency laser |
Title： |
| Laser feed-back displacement sensor based on frequency locked double-frequency laser |
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Application Number： |
200610012143 |
Application Date： |
2006/06/07 |
Announcement Date： |
2006/10/25 |
Pub. Date： |
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Publication Number： |
1851392 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G01B 11/02 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Zhang Shulian, Mao Wei |
Key Words： |
frequency locked, double-frequency laser, feed-back displacement, sensor |
Abstract： |
The invention relates to a laser feedback location sensor based on frequency lock two-frequency laser. Putting the quartz crystal with 0-2.9 degree wedge angle is fixed in the cavity of laser to form frequency lock two-frequency laser. It uses the laser and the reflecting or dispersion object to form laser feedback system to measuring the displacement. The invention has simple and tight structure, high measuring accuracy, low cost and has large measuring range. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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