Title:
AUTOMATIC CORRECTION CIRCUIT AND CORRECTION METHOD FOR MULTI-CHANNEL ANALOG SIGNAL DATA ACQUISITION
Document Type and Number:
WIPO Patent Application WO/2017/198053
Kind Code:
A1
Abstract:
Disclosed are an automatic correction circuit and a correction method for multi-channel analog-signal data acquisition; the automatic correction circuit for analog-signal data acquisition consists of a signal acquisition circuit, an A/D conversion unit and a control unit which are connected in sequence; the signal acquisition circuit comprises: a signal amplifying unit, a standard full-scale signal terminal, a standard zero signal terminal and an electronic switch; the control unit is connected to the control end of the electronic switch; the signal amplification unit, the standard full-scale signal terminal and the standard zero signal terminal are respectively connected to an input end of the electronic switch; the control unit transmits control information to the electronic switch; the electronic switch is automatically switched to connect to a signal end of a sensor, the standard full-scale signal terminal or the standard zero signal terminal, and transmits an input end signal to the signal amplifying unit; signals at the signal end of the sensor are from the sensor, signals at the standard full-scale signal terminal and signals at the standard zero signal terminal are taken from signals of a standard power supply of the circuit.
Inventors:
HOU LIGONG (CN)
LIU QUANSHENG (CN)
SHI YINGZHONG (CN)
CHEN TIANE (CN)
WU WEI (CN)
LIU QUANSHENG (CN)
SHI YINGZHONG (CN)
CHEN TIANE (CN)
WU WEI (CN)
Application Number:
PCT/CN2017/082119
Publication Date:
November 23, 2017
Filing Date:
April 27, 2017
Export Citation:
Assignee:
WUXI INST TECHNOLOGY (CN)
International Classes:
G05B19/042
Foreign References:
| CN102213956A | 2011-10-12 | |||
| CN202231703U | 2012-05-23 | |||
| CN101374124A | 2009-02-25 | |||
| US8102954B2 | 2012-01-24 | |||
| CN106020019A | 2016-10-12 |
Attorney, Agent or Firm:
NANJING JUNTAO PATENT TRADEMARK AGENCY CO., LTD et al. (CN)
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