Calibration processing method of a turbidity sensor

Abstract

The present invention provides a calibration treatment method of a turbidity sensor. A microprocessor in response to real-time sensing signal data controls and completes the determination operation of a calibration corresponding relation between a turbidity sensing signal value and a logged calibration liquid turbidity value in the calibration process. The method not only greatly reduces the workload of manual operation, but also avoids dependence on the artificially estimated timing standing time of the calibration process. The microprocessor controls and determines the calibration accuracy, ensures the corresponding relation of the turbidity sensing signal value of a turbidity sensor and the real turbidity value of the calibration liquid, effectively solves the problems that the calibration accuracy of the turbidity sensor in the prior art is susceptible to limit of artificial operation factor and that the measurement accuracy is affected. The calibration treatment method can write a piece of programme by computer programming technology and load the programme to the microprocessor of the turbidity sensor, so that the microprocessor realizes control of the calibration treatment. The method is applicable to industrial application and has good practical application value.

Description

technical field [0001] The invention relates to the technical fields of sensor technology and water quality monitoring, in particular to a calibration processing method of a turbidity sensor. Background technique [0002] Turbidity is a characteristic parameter of the optical properties of water, which reflects the cleanliness and sanitation of water. It is not only one of the important indicators to measure the goodness of water quality, but also an important basis for evaluating the effect of water treatment. The turbidity sensor is an effective tool for online detection of water turbidity, and it needs to be calibrated before use to ensure the detection accuracy of the turbidity sensor. [0003] The meaning of turbidity sensor calibration is to determine the corresponding relationship between the sensing signal value (photoelectric conversion voltage value) of the sensor and the output turbidity value, so as to assign the turbidity scale value to the turbidity sensor. Us...

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Problems solved by technology

[0005] In view of the above-mentioned deficiencies existing in the prior art, the object of the present invention is to provide a calibration processing method for a turbidity sensor, which is used to control the calibration process of the turbidity sensing signal value and the turbidity sensor through the micro-controller of the turbidity sensor. The operation of determining the calibration correspondence between the entered calibration liquid turbidity values, and better ensure the accuracy of calibration, thereby avoiding the dependence of the calibration process on artificially estimated timing and standing time, and solving the calibration of turbidity sensors in the prior art Accuracy is easily limited by human operation factors and affects its measurement accuracy

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