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Sensor display correction method for drifting due to long-term cold placing

A display correction and sensor technology, applied in the field of correction, can solve problems such as outrageous output of sensors, and achieve a good user experience

Active Publication Date: 2016-09-14
HENAN HANWEI ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies of the prior art, to provide an easy-to-implement correction method for sensor display drift due to long-term cold storage, and to solve the problem of outrageous output of long-term cold storage sensors after preheating

Method used

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Embodiment Construction

[0016] The technical solutions of the present invention will be described in further detail below through specific implementation methods.

[0017] A sensor display correction method for drift due to long-term cold storage, the method includes the following steps:

[0018] Step 1, preset the sensor output display range CLow~CHhigh, record the concentration value detected inside the sensor as Ct;

[0019] Step 2, collect the initial concentration value Co output after the sensor is powered on and preheated;

[0020] Step 3, compare the initial concentration value Co with the sensor output display range CLow~CHhigh, and obtain the static correction difference Dlt according to the following method;

[0021] If Co< CLow, Dlt= CLow–Co;

[0022] If CLow≤Co≤CHhigh, Dlt=0;

[0023] If Co>CHigh, Dlt=CHigh–Co;

[0024] Step 4, according to the obtained static correction difference Dlt, calculate the externally displayed output concentration of the sensor as: Cout=Ct+Dlt.

[0025] T...

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Abstract

The invention provides a sensor display correction method for drifting due to long-term cold placing. The method comprises the following steps that step 1, a sensor output display range CLow-CHigh is preset, and the concentration value of internal detection of a sensor is recorded as Ct; step 2, an initial concentration value Co outputted by the sensor after electrification and preheating is acquired; step 3, the initial concentration value Co is compared with the sensor output display range CLow-CHigh so that a static correction difference value Dlt is acquired; and step 4, the external display output concentration of the sensor is calculated as Cout=Ct+Dlt according to the acquired static correction difference value Dlt. The sensor output display range CLow-CHigh is preset and the static correction difference value Dlt is calculated so that the output display of the nonstandard sensor caused by drifting due to long-term cold placing can be corrected to the normal range, and users are enabled to acquire great use experience.

Description

technical field [0001] The invention relates to a correction method, in particular to a correction method for sensor display drift due to long-term cold storage. Background technique [0002] Sensors are prone to drift, and sensors or sensor modules with computing functions are no exception. However, this sensor can correct some small drifts through a certain algorithm. For example, the sensor for measuring natural gas leakage is in the case of no leakage most of the time. In this case, the zero point of the sensor can be corrected by counting the signal collection values ​​for several consecutive days. [0003] Theoretically speaking, under the same environment and the same concentration of the analyte, the output of the sensor should be the same every time. However, in fact, the output of some types of sensors after long-term storage when they are just powered on and after a period of stable operation is relatively large, even though their working environment and the con...

Claims

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Application Information

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IPC IPC(8): G01D18/00
CPCG01D18/00
Inventor 王书潜侯宗合张洋郑国锋慎金鸽任春红郭照锋贾林涛
Owner HENAN HANWEI ELECTRONICS