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A sensor baseline drift correction method and detection equipment

A technology for baseline drift and detection equipment, which is applied in the electronic field and can solve problems such as increasing the cost of processing sensor baseline drift

Active Publication Date: 2020-09-25
SHENZHEN CAMBRI ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the processing of baseline drift in the prior art, filtering devices and sampling processing devices need to be added, and multiple processing steps are performed, which increases the cost of dealing with sensor baseline drift

Method used

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  • A sensor baseline drift correction method and detection equipment
  • A sensor baseline drift correction method and detection equipment
  • A sensor baseline drift correction method and detection equipment

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Embodiment Construction

[0077] Embodiments of the present application provide a sensor baseline drift correction method and detection equipment, which are used to correct the sensor baseline drift and avoid inaccurate detection data of the sensor caused by the baseline drift.

[0078] The structure of the sensor in the embodiment of the present application is as follows figure 1 As shown, the sensor is composed of a sensitive element, a conversion element, a power supply and a conversion circuit. First, the sensitive element directly detects the measured object. For example, the elastic diaphragm of the strain gauge pressure sensor is the sensitive element, and its function is to convert the pressure into the pressure of the elastic diaphragm. out of shape. The physical quantity signal that has a certain relationship with the measured object is output to the conversion element. The conversion element converts the physical quantity signal output by the sensitive element into an electrical signal. The ...

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Abstract

The embodiment of the application discloses a sensor baseline drift correction method and detection equipment, and aims to correct sensor baseline drifts, thus preventing sensor inaccurate detection data caused by baseline drifts; the method comprises the following steps: obtaining a first detection signal of an auxiliary sensor in a first time period if the acquisition equipment cannot normally work in the first time period; obtaining a function relation; determining the first baseline signal in the first time period according to the first detection signal and the function relation; obtainingthe first real signal detected by the sensor in the first time period; correcting the sensor baseline drifts according to the first baseline signal and the first real signal.

Description

technical field [0001] The present application relates to the field of electronics, in particular to a sensor baseline drift correction method and detection equipment. Background technique [0002] A sensor is a detection device that can detect the measured information and convert the detected information into electrical signals or other required forms of information output according to certain rules. However, affected by environmental changes, the sensor will have a baseline drift In some cases, the baseline signal of the sensor can be collected by the acquisition device to determine the baseline drift of the sensor. For example, if the temperature or humidity in the environment changes too fast, it will cause the baseline of the sensor to change, resulting in a large error in the detection result. [0003] The solution to the baseline drift in the prior art is that after receiving the detection signal from the acquisition sensor, the filtering device performs low-pass filt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D18/00
Inventor 欧阳彬王玉政
Owner SHENZHEN CAMBRI ENVIRONMENTAL TECH CO LTD