I-beam type vehicle dynamic weighing sensor

一种动态称重、传感器的技术，应用在传感器领域，能够解决精准性不高、长期使用寿命不长等问题，达到受力分布均匀、延长使用寿命、提高长期绝缘阻抗的效果

Inactive Publication Date: 2015-02-25
SICHUAN STONE EDGE POLYTRON TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an I-beam type vehicle dynamic weighing sensor to solve the problems of long-term service life and low accuracy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention will be described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.

[0025] refer to figure 1 , the I-beam type vehicle dynamic load cell listed in this embodiment includes an I-beam type elastic body 101 , a measuring unit 104 , a force transmission block 102 and an insulating protective cover 103 . There is a cavity through the I-beam type elastic body, and a measuring unit 104 and a force transmission block 102 are arranged in the cavity, and the measurement unit 104 can be received between the force transmission blocks 102 and is in a pre-tightened state. In this way, the force distribution of the measuring unit 104 is made uniform, so that the weighing result is more accurate. The measurement unit 104 includes an upper electrode 1042 , a piezoelectric material 1043 and a lower electrode 1044 sequentially from top to bottom. In addition, the transverse surface of the insulatin...

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PUM

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Abstract

The invention relates to the technical field of sensors and provides an I-beam type vehicle dynamic weighing sensor. The I-beam type vehicle dynamic weighing sensor comprises an I-beam type elastic body, a measurement unit, power transmission blocks and an insulating protective sleeve, wherein a through cavity is formed in the I-beam type elastic body, the measurement unit and the power transmission blocks are arranged in the cavity, the measurement unit can be accommodated between the power transmission blocks in a pre-tightened mode, the measurement unit comprises an upper electrode, piezoelectric materials and a lower electrode from top to bottom in sequence, the horizontal surface of the insulating protective sleeve is arranged between the upper electrode and the lower electrode, through holes are formed in the horizontal surface of the insulating protective sleeve at equal intervals, the shape of each through hole is matched with that of each piezoelectric material, the insulating protective sleeve is made from an insulating material, and the piezoelectric materials are placed in the through holes. By the adoption of the I-beam type vehicle dynamic weighing sensor, insulation resistance is increased, a measurement result is more accurate, the pressure acting on the measurement unit is reduced, the piezoelectric materials are protected against damage caused by pressure, and service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to an I-beam type vehicle dynamic weighing sensor. Background technique [0002] With the continuous and rapid development of science and technology of the national economy, and the road transportation load of my country's logistics industry is getting heavier and busier, the traditional low-speed vehicle weighing method can no longer meet the needs of social development, efficient and fast vehicle dynamic weighing The method has been widely used, and the requirements for the accuracy and reliability of vehicle dynamic weighing results are getting higher and higher. [0003] Previously, the invention patent ZL20131056144.8 that our unit has applied for is also a sensor for road dynamic weighing. It is composed of elastic body and sensitive material, and the sensitive material is fixed in the elastic body cavity with display screws. , by adjusting the pre-tightening force of the scre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G19/03G01G3/13G01G21/23G01G23/06
Inventor 戴星汤世友
Owner SICHUAN STONE EDGE POLYTRON TECH INC
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