Photoelectric deflection fast detector
A detector and deflection technology, which is applied in the field of laser rapid detectors, can solve the problems of long detection time of measuring points, vibration interference of reading values, time-consuming and labor-intensive operation modes, etc., and achieves convenient and labor-saving operation modes, small traffic interference, and safety. high effect
Inactive Publication Date: 2010-10-27
CHANGAN UNIV
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Problems solved by technology
Judging from the principle of Beckermann beam detection deflection currently used, not only the operation is time-consuming and laborious, but also the detection time of each measuring point is long, and the reading value is often affected by external factors such as vibration interference from nearby driving vehicles, external wind force, etc. Impact
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[0018] The content of the present invention will be further described below in conjunction with the accompanying drawings, but the actual production structure of the present invention is not limited to the following embodiments.
[0019] Referring to the accompanying drawings, the photoelectric fast deflection detector according to the present invention mainly includes a combined long straight deflection detection beam and a line laser array illumination light source device I and a photoelectric receiving sensor II respectively arranged at both ends of the long straight deflection detection beam three parts. The deflection detection beam is composed of multi-section hollow short deflection detection beams 13 connected sequentially, and the connection and composition method can be as follows figure 1 and figure 2 As shown, 13 short deflection detection beams of each section are sequentially set to form a telescopic long straight deflection detection beam, or as Figure 4 As ...
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The invention relates to a photoelectric deflection fast detector used for detecting pavement deflection indexes, comprising a plurality of hollow short deflection detection beams which are sequentially combined and connected along the length direction, a linear laser array lighting source device, a backward collimated laser device, a photoelectric receiving sensor installed behind the final short deflection detection beam and a forward collimated laser device installed at the upper part of the photoelectric receiving sensor; and the linear laser array lighting source device and the backward collimated laser device are respectively arranged at the front end and the rear end of the first short deflection detection beam. Light beams emitted by the linear laser array lighting source device are transmitted to the photoelectric receiving sensor; in the practical structure, the short deflection detection beams can form a telescopic type, a segmental combined type or a folding segmental typelong straight deflection detection beams through the mode of sequential sleeved connection, bolting connection or articulated connection of the short deflection detection beams. The product has the advantages of reasonable structure, convenient and labor-saving operation, high measuring accuracy, high safety, high intelligent degree, and the like, and is especially suitable for the deflection survey of large-area pavements.
Description
technical field [0001] The content of the present invention belongs to the technical field of road quality detection devices, and relates to a laser rapid detector for detecting road surface deflection indicators. Background technique [0002] Pavement deflection is an important index to evaluate the pavement strength of various grades of roads, especially expressways. At present, the most commonly used methods for pavement deflection detection mainly include the Beckermann beam deflection detection method for detecting pavement rebound deflection, the continuous pavement deflection detection method for detecting total pavement deflection, and the dynamic pavement deflection detection method. The falling weight deflection method, and the roller deflection test method, the laser Doppler high-speed deflection test, etc., which are being researched and developed in recent years, but the latter still has some key points in terms of technology and theoretical methods. The techno...
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IPC IPC(8): G01B11/30
Inventor 宋宏勋马建韩毅马荣贵李平马涛尹湘凡谷珊方翠
Owner CHANGAN UNIV