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Electrochemical sensor simulating device

A simulation device and sensor technology, applied in simulators, measuring devices, instruments, etc., can solve the problems of toxic gas testing that is not environmentally friendly and unfavorable to the health of testers

Pending Publication Date: 2019-09-06
SHENZHEN CITY WUYANJIE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the shortcomings of the prior art above, the purpose of the present invention is to provide an electrochemical sensor simulation device to solve the problem that the existing toxic gas test is not environmentally friendly and is not conducive to the health of testers

Method used

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  • Electrochemical sensor simulating device
  • Electrochemical sensor simulating device

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Embodiment Construction

[0023] The invention provides an electrochemical sensor simulation device. In order to make the object, technical solution and effect of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] Please also see figure 1 and figure 2 , the electrochemical sensor simulation device includes a housing, a circuit board is arranged in the housing, and a negative feedback unit 10, a microcontroller (ie MCU) 20, a display unit 30, a keyboard 40 and a digital Analog-to-analog converter (DAC, Digital-to-Analog Converte) 50; the negative feedback unit 10 is connected to the digital-to-analog converter 50 and the load RL, and the microcontroller 20 is connected to the display unit 30, the keyboard 40 and the digital-t...

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Abstract

The invention discloses an electrochemical sensor simulating device. The device comprises a shell, a circuit board is arranged in the shell, a negative feedback unit, a microcontroller, a display unit, a keyboard and a digital-to-analog converter are arranged on the circuit board; the negative feedback unit is connected with the digital-to-analog converter and the load; the microcontroller is connected with the display unit, the keyboard and the digital-to-analog converter; the microcontroller outputs a corresponding debugging value to the digital-to-analog converter according to a gas concentration value input through the keyboard, and the digital-to-analog converter converts the debugging value into corresponding simulation voltage and transmits the simulation voltage to the negative feedback unit; the negative feedback unit collects the current of the load and outputs the corresponding sampling voltage, and compares the simulation voltage with the sampling voltage so as to adjust the current of the load; the microcontroller outputs the current value of the corresponding load according to the debugging value; and a display unit displays the gas concentration value and the currentvalue. The required gas concentration value is directly input through the keyboard without releasing toxic and harmful gas, and the device is environment-friendly and cannot influence the personnel health.

Description

technical field [0001] The invention relates to the technical field of environmental protection monitoring, in particular to an electrochemical sensor simulation device. Background technique [0002] Currently, there is no simulation device specifically for electrochemical gas sensors on the market. The signal conditioning circuit of the electrochemical gas sensor needs to be debugged and tested with the corresponding gas sensor and standard gas. For some toxic gases and VOCs (volatile organic compounds, volatile organic compounds), it is necessary to release such toxic gases and control their concentration, so that the electrochemical gas sensor can output the gas concentration value required for the test, so as to facilitate signal conditioning The circuit is directional debugged; this is neither environmentally friendly nor conducive to the health of testers, and it is very inconvenient to use. [0003] Thereby prior art still needs to improve and improve. Contents of...

Claims

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Application Information

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IPC IPC(8): G01R31/28G05B19/042
CPCG01R31/2829G05B19/0428G05B2219/2656
Inventor 黄小刚张强张瑞龙郭俊鑫
Owner SHENZHEN CITY WUYANJIE TECH CO LTD