Tumble angle measuring method and measurer |
Title： |
| Tumble angle measuring method and measurer |
|
Application Number： |
01130893 |
Application Date： |
2001/08/31 |
Announcement Date： |
2002/02/13 |
Pub. Date： |
|
Publication Number： |
1335483 |
Announcement Number： |
1166918 |
Grant Date： |
2004-9-15 |
Granted Pub. Date： |
2004-9-15 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G01B 11/26 |
Applicant(s)： |
Qinghua Univ. |
Inventor(s)： |
Yin Chunyong, Liu Zhongyao, Lin Dejiao |
Key Words： |
Tumble angle, measuring method, measurer |
Abstract： |
The present invention belongs to the field of optical angle measuring technology, and includes setting half-reflecting mirror in the output light axis of Zeeman laser, setting half wave plate perpendicularly in the transmission light path of the half-reflecting mirror, and setting half wave plate, analyzer, one first photoelectronic detector successively and perpendicular second photoelectronic detector in the reflection light path; and one phase meter with input connected to the output of the first and the second photoelectronic detectors and output to the computer. The present invention has strengthened non-linearity and 4 times raised sensitivity, and the close measuring detectors and light source results in compact structure and ever high practicability. |
Claim： |
|
Priority： |
|
PCT： |
|
LegalStatus： |
|
 Relevancy information |
|
|
|
| Other Patents of Same Inventor |
|
|
|
|
| Last Update |
|
|
 |
2008-4-17 |
| |
Selected patents owned by Tsinghua University filed in 2005 are loaded. |
|
2008-3-31 |
| |
Selected patents owned by Tsinghua University filed in 2006 and 2007 are load. |
|
|
