Bending unit measuring system |
Title: |
Bending unit measuring system |
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Application Number: |
200710063498 |
Application Date: |
2007/02/02 |
Announcement Date: |
2007/08/08 |
Pub. Date: |
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Publication Number: |
101013108 |
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: |
G01N 29/07G01N 33/00 |
Applicant(s): |
Tsinghua University |
Inventor(s): |
Hu LimingDing Jinwei |
Key Words: |
Bending unit, measuring system |
Abstract: |
Bending unit measurement system belongs to soil test equipment technology field. Its characteristic is that it includes the bending unit piezoelectric sensor transmitter and receiver, the computer, and the computer-linked data acquisition card, and the D/A output of the data acquisition card connects to a linear amplifier, the output of the linear amplifier respectively connecting with the signal input of the piezoelectric sensor transmitter and the input of the excitation signal preprocessor, and the outputs of the excitation signal preprocessor and the piezoelectric sensor transmitter respectively connecting with two A/D input ports of the data acquisition card. The invention improves the system measurement precision, simplifies the design, reduce costs, and meanwhile the operation is simple, performance stable, so it can be easily installed in all types of soil test equipment applications. |
Claim: |
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Priority: |
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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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