Low-temperature calibration system for electric vortex displacement sensing device |
Title： |
| Low-temperature calibration system for electric vortex displacement sensing device |
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Application Number： |
200310103532 |
Application Date： |
2003/11/07 |
Announcement Date： |
2004/11/03 |
Pub. Date： |
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Publication Number： |
1542412 |
Announcement Number： |
1219189 |
Grant Date： |
2005-9-14 |
Granted Pub. Date： |
2005-9-14 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G01D 18/00 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Fu Zhibin, Xu Yuzheng, Ding Tianhuai |
Key Words： |
Low-temperature, calibration system, electric vortex, displacement, sensing device |
Abstract： |
The present invention relates to measurement technology of displacement or other mechanical quantity variation in ultralow temperature medium conveying apparatus, and is the low temperature calibration system for eddy current displacement sensor. The calibration system includes low temperature container with liquid inlet, gas outlet and liquid level gauge inserting port, calibration chamber with test observing window, sensor calibrating rack inside the chamber, vacuum Dewar bottle with heat sink and vacuum pump port and communicated with the chamber, displacement simulating mechanism on the casing of Dewar bottle and connected with the side wall of the chamber, temperature measuring and regulating device for the calibrated eddy current sensor, and data acquisition and signal processing system comprising data acquiring instrument with three input channels and computer. |
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PCT： |
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 Relevancy information |
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| Last Update |
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2008-4-17 |
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Selected patents owned by Tsinghua University filed in 2005 are loaded. |
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2008-3-31 |
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Selected patents owned by Tsinghua University filed in 2006 and 2007 are load. |
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