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Preprocessing circuit for multiple temperature signals

A technology for preprocessing circuits and temperature signals, applied to thermometers, signal transmission systems, and parts of thermometers, etc., can solve the problems of temperature signal acquisition and processing equipment, and achieve high integration, strong applicability, and sensitivity high effect

Inactive Publication Date: 2005-07-06
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
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  • Application Information

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Problems solved by technology

However, as a standard, multi-channel, computer-controlled, it is not only suitable for thermocouples as temperature sensors, but also suitable for thermistors as temperature sensors, and can be used for large-scale temperature sensors with multiple measurement points. The temperature signal acquisition and processing equipment of the automatic monitoring and control system has not yet been seen.

Method used

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  • Preprocessing circuit for multiple temperature signals
  • Preprocessing circuit for multiple temperature signals
  • Preprocessing circuit for multiple temperature signals

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Embodiment Construction

[0019] Below in conjunction with the preferred embodiment shown in accompanying drawing, be described in further detail:

[0020] See figure 1 , multi-channel temperature signal preprocessing circuit, with a chassis, multiple temperature signal input CH x , a reference voltage generating circuit C whose main features include multiple input circuits A x Corresponding multiple temperature signal input CH x , Amplifying circuit B x Connection; amplifier circuit B x Connected to the multi-output modulation circuit F, the multi-output modulation circuit F outputs signals; the reference voltage generation circuit C and the input circuit A x The input terminal connection; input circuit A 末 The output terminal is connected to the amplifier circuit B 末 Then connect to the multi-channel output modulation circuit F or input circuit A 末 The output terminal of the terminal is connected to the reference terminal (cold terminal) signal processing circuit D and then connected to the mu...

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Abstract

This invention relates to a front electro device controlled by computer and used for temperature sensor signal collection and process with multiple signal collection and process channels and is used in multiple measure points automatic monitoring and controlling system. The multiple-path temperature signal pre-process circuit, which comprises machine shell, multiple temperature signal input and base voltage generation circuit. The enlarging circuit is connected to the modulation circuit with multiple output ends. The control end of the computer is connected to the multiple output modulation circuit.

Description

Technical field: [0001] The invention relates to a front-end electronic device controlled by a computer, used for temperature sensor signal acquisition and processing, and having multiple signal acquisition and processing channels. It is mainly used in large-scale multi-measurement point temperature automatic monitoring and control system. Background technique: [0002] At present, the temperature signal measurement or monitoring equipment for a single measurement point has been commercialized no matter whether it uses a thermistor or a thermocouple as a temperature measurement element. However, as a standard, multi-channel, computer-controlled, it is not only suitable for thermocouples as temperature sensors, but also suitable for thermistors as temperature sensors, and can be used for large-scale temperature sensors with multiple measurement points. The temperature signal acquisition and processing equipment of the automatic monitoring and control system is still seen. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K1/00G01K7/00G08C13/00
Inventor 苏弘马晓莉李小刚董成富
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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