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Automatic multi-path resistance measuring and controlling device for piezoresistance bridge analog-digital conversion

A measurement and control device and analog-to-digital conversion technology, which can be used in measurement devices, measurement of resistance/reactance/impedance, measurement of electrical variables, etc.

Active Publication Date: 2014-07-30
HUBEI JIANGSHAN HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional instrument for measuring the allowable range of resistance can only measure the resistance value in a single channel and then identify whether it is qualified by the operator, which is inefficient and consumes the staff's eyesight

Method used

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  • Automatic multi-path resistance measuring and controlling device for piezoresistance bridge analog-digital conversion
  • Automatic multi-path resistance measuring and controlling device for piezoresistance bridge analog-digital conversion
  • Automatic multi-path resistance measuring and controlling device for piezoresistance bridge analog-digital conversion

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Embodiment

[0048] The piezoresistive bridge analog-to-digital conversion multi-channel resistance automatic measurement and control device provided in this embodiment, such as figure 1 As shown, it includes: piezoresistive bridge analog / digital conversion module, multi-channel automatic acquisition module, floating active second-order low-pass filter module, and edge composite trigger memory display module; they together form a multi-channel resistance measurement and control system, and its measurement method is Change the analog quantity into a binary state quantity to realize multi-channel detection.

[0049] Wherein, the piezoresistive bridge analog / digital conversion module, such as figure 2 As shown, it is the key sub-module of the device. This module is a unique detection scheme finalized after repeated experiments in order to realize multi-channel detection and improve the input characteristics of the measurement circuit during the design and manufacture process. The detection ...

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Abstract

The invention belongs to the technical field of electronic measuring, relates to automatic multi-path detecting and controlling identified in the resistance range, in particular to an automatic multi-path resistance measuring and controlling device for piezoresistance bridge analog-digital conversion. The automatic multi-path resistance measuring and controlling device is suitable for detecting insulation resistance of capacitors and measuring insulation resistance of other apparatuses or suitable for a real-time control system which is provided with a resistance sensor and serves as a multi-path collecting interface. According to the technical scheme, the method for measuring and controlling the resistance comprises the steps that a circuit similar to a direct-current resistance bridge circuit is formed according to the relation between two constant voltage specific values and the specific value of the to-be-measured resistance to the constant adjustable resistance, the analog quantity of the resistance is converted into a binary state value, the state values of various resistance are measured and controlled in a multi-path collecting and time-sharing measuring and controlling mode, and the measuring and controlling results of all paths are displayed. Whether the multi-path resistance limit values are in the specialized range or not is detected or controlled at a time.

Description

technical field [0001] The invention belongs to the technical field of electronic measurement, and in particular relates to a piezoresistive bridge analog-to-digital conversion multi-channel resistance automatic measurement and control device. Background technique [0002] Traditional instruments that measure the allowable range of resistance can only measure the resistance value in a single channel and then use the operator to identify whether it is qualified, which is inefficient and consumes the staff's eyesight. In order to improve the efficiency, reduce the operating intensity, and realize the computer to collect information, it is necessary to develop a multi-channel resistance automatic measurement and control device. Contents of the invention [0003] (1) Technical problems to be solved [0004] The technical problem to be solved by the present invention is: how to provide a multi-channel resistance automatic measurement and control device suitable for the detecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/14
Inventor 张中华寇建政
Owner HUBEI JIANGSHAN HEAVY IND
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