Method for measuring material level by applying curve simulation and nuclear radiation principle

Abstract

The invention provides a method for measuring a material level by applying curve simulation and a nuclear radiation principle, and relates to the field of material level measurement of materials in a container. The method comprises the steps of S1, obtaining a relation between the radiation quantity Im of a reference material and the volume v of the reference material; S2, obtaining the relation between the volume V of the measured material and the volume v of the reference material; S3, obtaining the relation between the volume V of the measured material in the container and the height h of the material; S4, obtaining the relation between the radiation quantity difference value [delta] It of the reference material and the temperature difference value [delta] t of the reference material; S5, obtaining the relation between the final radiation quantity I and the radiation quantity Im and the relation between the final radiation quantity I and the radiation quantity difference [delta] It, and conducting environment radiation correction on the final radiation quantity I; and S6, obtaining the relation between the final radiation quantity I and the height h of the measured material on the basis of the temperature difference [delta] t of different reference materials in the steps S1 to S5. According to the invention, the defects of radiation hazard, inaccurate measurement and the like existing in the conventional method for measuring the material level of the material in the container are overcome.

Description

technical field [0001] The invention relates to the field of level measurement of materials in containers, in particular to a method for measuring level by applying the principle of curve simulation and nuclear radiation. Background technique [0002] In chemical industry, metallurgy, coal, electric power and other industries, it is generally necessary to measure the level of materials in containers. Existing level measurement methods mainly include three types: 1. Level measurement by radioactive radiation sources and sensors, that is, by using radiation sources with radioactive isotopes as signal sources, and signal acquisition by sensors, and calculating according to the signal acquisition time Material level; 2. Measure the material level through ultrasonic waves, that is, use an ultrasonic generator as a signal source, and use an ultrasonic receiver for signal acquisition, and calculate the material level according to the signal acquisition time; 3. Measure material lev...

AI Technical Summary

Problems solved by technology

[0004] (1) When using method 1 for level measurement, the radiation source is more dangerous to human health; and when the radiation source is used improperly, it will pollute the environment

[0005] (2) When using method 2 for level measurement, it is easy to measure inaccurately when ultrasonic waves encounter dust and irregularly shaped measured objects; and when the container of the measured object is irregular in shape, there will be measurement blind spots

[0006] (3) When using method 3 for level measurement, mechanical measuring tools are easy to wear and damage in complex environments, so they are easily disturbed and cause inaccurate measurement

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