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A batch calibration method for electrochemical formaldehyde sensor detection

A technology of formaldehyde sensor and calibration method, which is applied in the field of formaldehyde detection, can solve problems such as numerical instability, inability to observe the trend of sensor changes, batch error calibration, and affect the accuracy of detection results, so as to improve work efficiency, ensure accuracy, and avoid data difference effect

Active Publication Date: 2021-10-22
瑞斯普(深圳)电器有限公司
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Problems solved by technology

[0003] Due to the principle and interference factors of the sensor of the electrochemical formaldehyde detector, the test environment should not contain alcohol, perfume, or even melon skin and other items. Random walking and touching the sensor will also cause instability in the value, affecting the accuracy of the test result, and the sensor The calibration is all data at a certain moment, and it is impossible to observe the change trend of the sensor for a long time and batch error calibration

Method used

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  • A batch calibration method for electrochemical formaldehyde sensor detection

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Embodiment

[0027] Example: see figure 1 , figure 1 The flow chart of the batch calibration method for electrochemical formaldehyde sensor detection provided by the embodiment of the present invention. According to different needs, figure 1 The execution order of the steps in the shown flowchart can be changed, some steps can be split into several steps, and some steps can be omitted.

[0028] Step 1: Open the upper computer software, set the serial port parameters of the upper computer, judge whether the serial port is open, if the serial port is open, connect the port number, and choose to connect to the lower computer; if the serial port is not open, reset the serial port parameters, and then connect to the lower computer;

[0029] Step 2: The upper computer sets the ID of the sensor of the lower computer, and writes the ID into the lower computer, where the ID is set to increase from 1 in turn, and each additional ID will be written into the lower computer, such as 1 , 2, 3······, ...

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Abstract

The present invention relates to a batch calibration method for electrochemical formaldehyde sensor detection. The method comprises: S1: providing a host computer, setting the serial port parameters of the host computer to select and access the port of the lower computer; S2: performing ID on several sensors Set, write several IDs into the lower computer; S3: start the upper computer, collect multiple groups of detection data of a plurality of the sensors, and record the running time of the sensor; S4: the upper computer according to the record in S3 Time and the detection data of collection, draw real-time curve; S5: observe described real-time curve change trend and judge whether there is abnormal data, if there is no abnormal data, then carry out S6; S6: add different concentrations of formaldehyde in the detection environment and stir evenly, record Standard data under multiple concentrations and the detection data of the host computer; S7: perform batch calibration on the detection data of the host computer according to the standard data. The purpose of batch calibration of sensors is achieved, the detection accuracy of the sensors is ensured, and the operation is flexible.

Description

technical field [0001] The invention relates to the field of formaldehyde detection, in particular to a batch calibration method for electrochemical formaldehyde sensor detection. Background technique [0002] In the past two years, as consumers have gradually paid more attention to indoor air quality, the detection of volatile organic compounds and formaldehyde in the air has gradually been paid attention to. At present, the widely used volatile organic compound sensors and formaldehyde sensors mainly use electrochemical sensors or Among them, the electrochemical formaldehyde sensor is the most important component of the semiconductor sensor, which has excellent characteristics such as low power consumption, high sensitivity, and good linearity. [0003] Due to the principle and interference factors of the electrochemical formaldehyde detector sensor, the test environment should not have alcohol, perfume, or even melon skin and other items. Random walking and touching the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/26
CPCG01N27/26
Inventor 颜敏
Owner 瑞斯普(深圳)电器有限公司
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