Vehicle dynamic measurement sensing device and method based on optical fiber ring cavity ring down technology

A technology of dynamic measurement and sensing devices, which is applied in the direction of measuring devices, devices for measuring the time required to move a certain distance, radio wave measurement systems, etc., can solve problems such as difficult promotion and application, and harsh sensor application environments. Improve monitoring sensitivity, facilitate signal detection and processing, and reduce loss

CN105527001BActive Publication Date: 2019-01-22西安和其光电科技股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2019-01-22

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Abstract

The present invention discloses a vehicle dynamic measurement sensing device and method based on the fiber-loop ring-down spectroscopy technology, belonging to the field of fiber sensing and vehicle dynamic measurement. The device comprises a pulse light source, a lead-in fiber, couplers, sensing heads, a transmission fiber, a lead-out fiber, a photodetector, an oscilloscope and a computer for data processing. The couplers also comprise a No.1 coupler and a No.2 coupler. The sensing heads comprise a No.1 sensing head and a No.2 sensing head. A ring resonator is formed by the No.1 coupler, the No.1 sensing head, the No.2 sensing head, and the No.2 coupler through a transmission fiber group. The vehicle dynamic measurement sensing device and the method have the advantages of a simple structure, a novel method, high measurement accuracy and good repeatability, the vehicle dynamic weighing and speed monitoring can be realized, and the device and the method have a broad application prospect in the field of road traffic real-time monitoring.
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Description

technical field The invention relates to an optical fiber ring cavity ring down spectrum technology and a dynamic measurement sensor device for vehicle dynamic weighing and speed monitoring, in particular to a vehicle dynamic measurement sensor device and method based on optical fiber ring cavity ring down technology, which belongs to optical fiber Sensing and vehicle dynamic measurement field; the device of the present invention is a dynamic measurement sensing device based on the combination of optical fiber ring cavity ring-down spectrum technology, vehicle dynamic weighing technology and speed monitoring technology. Background technique Highway is an important economic lifeline of a country, and the informatization of the transportation industry is currently in a stage of rapid development. Realizing automatic detection and real-time monitoring of motor vehicles is an indispensable means to realize traffic informationization. As for the weighing of vehicles, traditional...

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