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Title:
MULTI-CHANNEL, ADAPTIVE, HIGH-ACCURACY LVDT DATA ACQUISITION AND MEASUREMENT SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO/2021/051850
Kind Code:
A1
Abstract:
A multi-channel, adaptive and high-accuracy LVDT data acquisition and measurement system and method, the system comprising a constant-frequency, constant amplitude signal generation unit (1), a channel gating and LVDT drive unit (2), a receiving gated low-noise preamplification unit (3), a programmable gain unit (4), a true RMS value rapid sampling unit (5), a motion direction determining unit (6) and a microprocessor unit (7); the constant frequency, constant amplitude signal generation unit (1) is connected to the channel gating and LVDT drive unit (2), the channel gating and LVDT drive unit (2) is connected to the receiving gated low-noise preamplification unit (3), the receiving gated low-noise preamplification unit (3) is connected to each of the true RMS value rapid sampling unit (5) and the motion direction determining unit (6), the true RMS value rapid sampling unit (5) and the motion direction determination unit (6) are each connected to the microprocessor unit (7), the microprocessor unit (7) is connected to each of the channel gating and LVDT drive unit (2) and the programmable gain unit (4), and the programmable gain unit (4) is connected to the receiving gated low-noise preamplification unit (3).

Inventors:
LI JIANGUO (CN)
YING JIWEI (CN)
JIAO DI (CN)
YIN JIANGUO (CN)
WANG BANGYUN (CN)
Application Number:
PCT/CN2020/091997
Publication Date:
March 25, 2021
Filing Date:
May 25, 2020
Export Citation:
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Assignee:
SHANGHAI FUTURE INTELLIGENCE TECH CO LTD (CN)
International Classes:
G01B7/16; G05B19/042
Foreign References:
CN110906857A2020-03-24
CN110631467A2019-12-31
CN110631468A2019-12-31
CN110631469A2019-12-31
CN210833402U2020-06-23
CN210833404U2020-06-23
CN210833403U2020-06-23
CN210833401U2020-06-23
CN104833297A2015-08-12
CN101788627A2010-07-28
CN105423886A2016-03-23
CN106370096A2017-02-01
CN102818513A2012-12-12
JP2014077746A2014-05-01
Attorney, Agent or Firm:
SHANGHAI BRIDGE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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