Bin level testing method

Abstract

In the method, an object which can rotate and swing freely is set at position where the material level signal is required. The object is pushed to have a displacement by down wards flowing material when the object is contacted with material which is piled up to the above said position since material at pile top flows down wards along the angle of repose in course of material continuous piling up. The displacement represents signal that the material reaches the position and the displacement is converted to be electrical switching signal by displacement signal detection device set near the object.

Description

technical field [0001] The invention belongs to an object position detection method, in particular to a material level detection method. Background technique [0002] During the work of conveying and accumulating solid powder and granular materials, when the materials are accumulated to a certain height or close to the position of the conveying and discharging device, it is necessary to obtain a signal of the height of the material level for controlling the stop of the discharge, or moving The discharge device avoids material blockage. At present, this signal can be obtained by capacitive, inductive, radar, ultrasonic, tuning fork and other sensors. The above-mentioned sensors are generally expensive, and are greatly affected by the environment and the physical state of the medium during use, so it is difficult to guarantee the accuracy and stability of the signal. In some cases an available sensor cannot be selected. Contents of the invention [0003] The technical pro...

AI Technical Summary

Problems solved by technology

The above-mentioned sensors are generally expensive, and are greatly affected by the environment and the physical state of the medium when used, and the accuracy and stability of the signal are difficult to guarantee

Unable to select an available sensor in some cases

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