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High-accuracy signal tracking CO2 detection circuit based on signal buffering

A carbon dioxide and signal following technology, which is applied in the direction of logic circuit coupling device, logic circuit connection/interface layout, electrical components, etc., can solve the problems of low measurement accuracy and high price, and achieve the effect of easy identification, accurate detection, and improved range

Inactive Publication Date: 2018-02-02
CHENGDU YUEXIANGXIANG TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the defects of high price and low measurement accuracy of the current method for detecting carbon dioxide, and provide a signal-following high-precision carbon dioxide detection circuit based on signal buffering

Method used

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  • High-accuracy signal tracking CO2 detection circuit based on signal buffering

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Embodiment

[0016] Such as figure 1 As shown, the present invention mainly consists of carbon dioxide sensor H, amplifier P1, amplifier P2, display, triode VT1, triode VT2, triode VT3, triode VT4, resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, resistor R6, resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, resistor R13, resistor R14, resistor R15, resistor R16, resistor R17, resistor R18, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, Capacitor C6, capacitor C7, capacitor C8, capacitor C9, diode D1, snubber circuit and diode D2.

[0017] Wherein, the positive pole of the capacitor C1 is connected to the collector of the triode VT1, and the negative pole is grounded. The resistor R1 is connected in series between the collector and the base of the transistor VT1. The P pole of the diode D1 is connected to the base of the triode VT1, and the N pole is grounded after passing through the resistor R2. One end of the resis...

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Abstract

The invention discloses a signal-following high-precision carbon dioxide detection circuit based on signal buffering, which is characterized in that it mainly consists of a carbon dioxide sensor H, an amplifier P1, an amplifier P2, a triode VT2, a display, and one end is connected to the signal output end of the carbon dioxide sensor H 1. The other end is composed of the resistor R1 connected to the base of the triode VT2 after the resistor R5. The present invention can collect the carbon dioxide concentration signal in the environment, and filter the interference signal in the signal to make the detection signal cleaner. At the same time, the present invention can also amplify the detection signal and increase the amplitude of the detection signal, so that accurate detection can be achieved The concentration of carbon dioxide in the environment. The invention has a temperature compensation function, which can compensate the error caused by the change of ambient temperature, so that the invention can detect the concentration of carbon dioxide more accurately.

Description

technical field [0001] The invention relates to a detection system, in particular to a signal-following high-precision carbon dioxide detection circuit based on signal buffering. Background technique [0002] With the progress of human society and the development of science and technology, people's living standards have been rapidly improved, and the scale of industrial production has also rapidly expanded, but at the same time it has led to a double increase in carbon dioxide emissions, such as the greenhouse effect and the acceleration of land desertification. It affects and destroys the living environment of human beings. In recent years, with the enhancement of people's awareness of environmental protection, people have begun to control the environment. In the process of treatment, carbon dioxide needs to be detected. At present, the methods for detecting carbon dioxide mainly include chemical methods, gas chromatography, and volumetric titration methods. These methods ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/3504H03F3/68H03F1/26H03H5/02H03K19/0175
CPCG01N21/3504H03F1/26H03F3/68H03H5/02H03K19/017545
Inventor 王青松
Owner CHENGDU YUEXIANGXIANG TECH CO LTD
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