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Novel gas pollutant concentration sensor based on four-electrode system

A pollutant concentration and four-electrode technology, which is applied in the field of new gaseous pollutant concentration sensors, can solve the problems of low measurement resolution and poor monitoring accuracy, and achieve high monitoring accuracy, offset measurement errors, and small and exquisite appearance Effect

Inactive Publication Date: 2018-11-13
SHANXI LIANHUA WEIYE TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing electrochemical sensor is a two-electrode type, which has the disadvantages of low measurement resolution and poor monitoring accuracy in actual use

Method used

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  • Novel gas pollutant concentration sensor based on four-electrode system
  • Novel gas pollutant concentration sensor based on four-electrode system
  • Novel gas pollutant concentration sensor based on four-electrode system

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Embodiment Construction

[0013] like figure 1 , winter 2, image 3 , Figure 4 , Figure 5 and Image 6 As shown in the figure, a novel gaseous pollutant concentration sensor based on a four-electrode system includes a protective mounting shell 1, an electrochemical sensitive element 2, a signal amplification circuit board 3, a main control circuit board 4 and an interface circuit board 5. Electrochemically sensitive The component 2, the signal amplification circuit board 3, the main control circuit board 4 and the interface circuit board 5 are sequentially installed inside the protective installation casing 1. The protective installation casing 1 has a cylindrical shape, including an upper casing 11 and a lower casing. body 12, an upper installation cavity 13 is arranged in the middle of the upper casing 11, a ventilation inlet 14 is arranged at the top of the upper casing 11, the ventilation inlet 14 is communicated with the upper installation cavity 13, and the inner diameter of the ventilation ...

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Abstract

The invention relates to a novel gas pollutant concentration sensor based on a four-electrode system. The sensor comprises a protection mounting shell (1), an electrochemical sensitive element (2), asignal amplification circuit board (3), a main control circuit board (4) and an interface circuit board (5), wherein the electrochemical sensitive element (2), the signal amplification circuit board (3), the main control circuit board (4) and the interface circuit board (5) are sequentially mounted inside the protection mounting shell (1). The novel gas pollutant concentration sensor is simple andnovel in structure, small and delicate in appearance size, accessible to sensitive elements of different types of electrochemical reactions, applicable to parameter acquisitions of multiple gas pollutant characteristic indexes, capable of counteracting measurement errors caused by environment change, high in monitoring precision and good in overall operation stability; due to addition of functionselection pins, the sensor is flexible to use; due to adoption of a temperature and humidity sensor, the sensor is convenient and rapid in delivery calibration and periodic calibration.

Description

technical field [0001] The invention relates to the technical field of air detection, in particular to a novel gaseous pollutant concentration sensor based on a four-electrode system. Background technique [0002] With the acceleration of industrialization development, the combined effect of regional and local pollution sources has led to compound air pollution in some areas. The acceleration of urbanization and the rapid growth of traffic demand have led to a continuous upward trend in the number of motor vehicles. Motor vehicle exhaust pollution is relatively high. serious. In the "Ambient Air Quality Index AQI Technical Regulations (Trial)" issued by my country in early 2012, a dimensionless index AQI that describes the air quality condition is scientifically defined, namely the Air Quality Index (Air Quality Index), and there are 6 air pollutant monitoring items: PM2.5, PM10, carbon monoxide, sulfur dioxide, nitrogen dioxide and ground-level ozone. In 2016, the new "Amb...

Claims

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Application Information

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IPC IPC(8): G01N27/407
CPCG01N27/4075
Inventor 李玮王浩黄志龙王耀华李琳乔林
Owner SHANXI LIANHUA WEIYE TECH
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