Dynamic-static double-output rail weighbridge

Abstract

The invention provides a dynamic-static double-output rail weighbridge. A resistance strain sensor device with double vertical force outputs is adopted. In the sensor device, strain gauges of two bridge circuits of the same composition are arranged on the bottom surface of a web plate of a shearing strain blind hole of the same beam or plate type sensor elastomer in a specific configuration mode, so that double vertical force output signals can be output at high accuracy under the same load, wherein the two output signals are respectively used for measurement of static and dynamic rail weighbridges. Meanwhile, a dynamic-static weighing measurement method which is simple and effective and is not affected by the operating environment is provided for the rail weighbridge. In addition, corresponding improvement is made on the power module of the rail weighbridge in view of the working environment of the rail weighbridge.

Description

technical field [0001] The invention relates to the field of electronic scales, in particular to an electronic track scale with dynamic and static dual outputs. Background technique [0002] Rail scales are equipment installed on railways to measure the weight of goods loaded on trains. Rail scales are usually composed of auxiliary equipment such as load-bearing platforms, sensors, weighing displays, and digital printers. They can automatically display weighing values, and have the characteristics of remote transmission of information and continuous measurement. Due to these characteristics, rail scale technology has been widely used in factories, mines, metallurgy, foreign trade and railway departments to weigh truck bulk goods. [0003] Existing track scales are generally divided into two categories: static track scales and dynamic track scales. Under normal circumstances, the construction of a conventional dynamic rail scale requires at least 250 square meters of land t...

AI Technical Summary

Problems solved by technology

However, the arrangement of multi-channel Wheatstone bridge strain gauges in the elastic body in these prior art can only meet the requirements of vertical force and horizontal component force measurement, and it cannot output two vertical channels accurately under the same load at the same time. force signal

In fact, no matter what kind of load cell structure is used in the existing static rail scale and dynamic rail scale, due to the design limitation of the elastic deformation zone, there has not been a sensor that can output two vertical force signals in response to the same load; A convenient static and dynamic measurement calculation method has not been found, and these problems together lead to the fact that the static track scale and the dynamic track scale cannot be effectively combined into one and continues to this day

[0005] In addition, rail scales are usually exposed to the natural environment, and the electronic components, especially the sensors, are easily affected by external uncertain factors, such as externally introduced impulse voltages, etc., causing unnecessary measurement errors and even device damage; in addition, how to Being able to provide stable power supply for rail scales, especially the sensors therein, reducing power supply replacement or maintenance procedures, and reducing operating costs is also a problem that the present invention hopes to solve

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