Optical belt scale and measuring method thereof

Abstract

The invention provides a non-contact measurement type optical belt scale and a measuring method thereof. The non-contact measurement type optical belt scale is composed of a scale frame, a carrying roller, a driving wheel, a belt, lasers, a camera, a driven wheel, a motor and a computer. The driving wheel, the carrying roller and the driven wheel are sequentially installed on the scale frame, andan annular belt is arranged on the outer side in a surrounding mode. A row of lasers are uniformly installed on the cross arm of the scale frame, and a camera is installed above the outer side of theaxis of the driving wheel. A measurement coordinate system and an image plane coordinate system are established, the laser light spots irradiated on the materials through the lasers are shot by the camera and are sent to a computer for image processing, and the coordinates of the light spots in the image plane coordinate system and the measurement coordinate system can be obtained. In combinationwith known data, the computer can calculate the total weight of the materials leaving the belt scale. The non-contact type measuring device has the advantages that non-contact type measurement is achieved, and the measurement result is not affected by the tension change of the belt and the vibration of the belt. The weighed materials are immediately separated from the belt, so that the feeding weight can be accurately controlled. No modification is required to be carried out on a conveyor.

Description

technical field [0001] The invention relates to an optical belt scale. Background technique [0002] The belt scale is a kind of weighing instrument for automatic weighing of loose materials placed on the belt and continuously moving with the belt. It is widely used in continuous measurement and Ingredients control. It is mainly composed of a scale frame, a load cell, a speed sensor and a weighing instrument. When the material passes through the load cell installed on the belt scale, the sensor detects the weight of the material, and then transmits the data to the weighing instrument. At the same time, the speed sensor transmits the conveying speed of the belt conveyor to the weighing instrument. The weighing instrument integrates the data information collected from the speed sensor and the load cell, and calculates the instantaneous flow rate and cumulative weight of the material passing through the belt conveyor. However, when the material on the belt is unevenly distr...

AI Technical Summary

Problems solved by technology

However, γ-rays have strong penetrating power. After the human body is irradiated by γ-rays, γ-rays can enter the interior of the human body and ionize with cells in the body. The ions generated by the ionization can erode complex organic molecules, such as proteins and nucleic acids. And enzymes, they are the main components of living cell tissue, once they are destroyed, it will cause the normal chemical process in the human body to be disturbed, and the cells can die in severe cases

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