Optical fiber-hydraulic combined dynamic vehicle weighing device

A dynamic weighing and combined technology, applied in the use of optical devices to transmit sensing components, measuring devices, weighing and other directions, can solve the problems of inaccurate measurement results, complex vehicle loads, and many external interference factors, and achieve easy remote control. Measurement, the overall structure is simple, the effect of improving the overall stability and reliability

Inactive Publication Date: 2013-07-10
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the complex vehicle load of the vehicle dynamic weighing system and many external interference factors, the single optical fiber time domain reflection measurement system or optical fiber microbend measurement system is easily affected by accidental factors, resulting in inaccurate measurement results

Method used

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  • Optical fiber-hydraulic combined dynamic vehicle weighing device
  • Optical fiber-hydraulic combined dynamic vehicle weighing device
  • Optical fiber-hydraulic combined dynamic vehicle weighing device

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] Such as figure 1 As shown, the present invention consists of an optical fiber microbend-elastic oil pipe sensor 1, an optical fiber hydraulic sensor 2, a hydraulic oil pump 3, a first connecting oil pipe 4, a second connecting oil pipe 5, a first light intensity demodulation module 6, a second light intensity solution It consists of 7 tuning modules.

[0031] The first connecting oil pipe 4 connects the elastic oil pipe 1 - 1 with the hydraulic oil pump 3 , and the second connecting oil pipe 5 connects the elastic oil pipe 1 - 1 with the optical fiber hydraulic sensor 2 . The hydraulic oil pump 3 outputs the first hydraulic oil 1-2 to the optical fiber microbend-elastic oil tube sensor 1, and outputs the second hydraulic oil 2-2 to the optical fiber hydraulic sensor 2. After reaching the design oil pressure, close the hydraulic oil pump 3 and lock the oil outl...

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Abstract

The invention discloses an optical fiber-hydraulic combined vehicle dynamic weighing device, which is characterized in that the device comprises an optical fiber microbend sensor (1), an optical fiber connected to the optical fiber micro sensor (1) through a second connecting oil pipe (5) The hydraulic sensor (2), the hydraulic oil pump (3) connected to the optical fiber microbend sensor (1) through the first connecting oil pipe (4), the first transmission optical fiber (1-4) and the second transmission optical fiber (1-5) The first light intensity demodulation module (6) connected to the optical fiber microbending sensor (1), and the optical fiber hydraulic sensor (2) connected through the third transmission optical fiber (2-10) and the fourth transmission optical fiber (2-11) A second light intensity demodulation module (7). The invention improves the stability and reliability of the device.

Description

technical field [0001] The invention relates to a vehicle dynamic weighing sensor, which is mainly used in a vehicle dynamic weighing system for real-time monitoring of the weight and speed of vehicles traveling on bridges and roads. Background technique [0002] The dynamic weighing system is currently a frontier topic in the field of international scientific research, and countries all over the world pay great attention to the development and application of dynamic weighing technology. Since the 1950s, developed countries have begun to study the vehicle dynamic weighing system and have achieved corresponding results. Judging from the dynamic weighing systems that have been successfully applied in the market, the automotive dynamic weighing systems mainly include: piezoelectric, capacitive, weighing platform, shear beam, and bent plate types, among which the bent plate type and piezoelectric are the most widely used. [0003] Among them, the piezoelectric dynamic weighing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01G19/03G01D5/26
Inventor 丁幼亮宋永生周广东李爱群
Owner SOUTHEAST UNIV
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