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Dynamic weighing sensor and measuring method thereof

A technology of dynamic weighing and measuring methods, applied in the directions of weighing, measuring devices, instruments, etc., can solve the problems of inaccurate test results and elastic deformation, and achieve the effect of expanding the measuring range, simple structure, and low difficulty in production and manufacturing.

Inactive Publication Date: 2020-07-10
李小芳 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the driving force or braking force in the driving direction of the vehicle during driving, and the lateral force in the lateral direction perpendicular to the driving direction, these forces will also cause elastic deformation, which will lead to inaccurate detection results.

Method used

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  • Dynamic weighing sensor and measuring method thereof
  • Dynamic weighing sensor and measuring method thereof
  • Dynamic weighing sensor and measuring method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment approach

[0046] The dynamic equipment may be various horizontally moving equipment, as a preferred embodiment: the dynamic equipment is a vehicle. Sensors with sensitive beams 3 distributed in an array can also detect the following parameters of the vehicle:

[0047] The lane where the vehicle is located is obtained according to the position of the sensitive beam 3 that generates the output. Specifically, when the car reaches the sensor, the wheel contacts the upper support 1, and the sensitive beam 3 below the contact position deforms and outputs a signal. The position of the wheel can be determined according to the position of the sensitive beam 3 that generates the output, and the position of the wheel can be determined. Calculate the lane the vehicle is in.

[0048] The speed of the vehicle is calculated according to the distance between the front and rear two sensitive beams 3 and the time difference between the output of the front and rear two sensitive beams 3 . When the car i...

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Abstract

The invention provides a dynamic weighing sensor. The sensor comprises an upper supporting piece, a lower supporting piece, a sensitive beam and a sensitive element. The sensitive beam is vertically arranged, the upper end of the sensitive beam is installed on the upper supporting piece, and the lower end of the sensitive beam is installed on the lower supporting piece. The sensitive beam is provided with a front side face, a rear side face, a left side face and a right side face. The front side face is parallel to the rear side face, the left side face is parallel to the right side face, andthe front side face is perpendicular to the left side face. Sensitive elements are arranged on the front side face, the rear side face, the left side face and the right side face. The invention further provides a measuring method of the dynamic weighing sensor. The structure is simple, the production and manufacturing difficulty is low, and the production cost is reduced. The output of the four sensitive elements of each sensitive beam is added, so that the influence of brake force, transverse force and the like on output signals can be automatically decoupled, and the measurement accuracy isensured. The sensitive beam is high in bearing capacity, and the sensitive element does not bear load and is prevented from being damaged by pressure.

Description

technical field [0001] The invention relates to the technical field of dynamic weighing, in particular to a dynamic weighing sensor and a measuring method thereof. Background technique [0002] The dynamic weighing sensor is mainly used to measure the axle weight and total weight of the vehicle during the driving process, and realize the automatic collection of vehicle weight data to support intelligent traffic management planning, automatic detection of overload and over-limit, and support road weight tolls and other functions. Of course, it can also be used for weighing other dynamic equipment. [0003] The current dynamic load cells are mainly divided into two categories. The first type is narrow quartz dynamic load cells. Its structure is integrally manufactured by profile technology, and quartz piezoelectric sensitive elements are arranged equidistantly in the middle of the structure. When the wheel passes over the sensor, the integrated structure bears a fixed proport...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G19/03
CPCG01G19/035
Inventor 李小芳
Owner 李小芳
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