Novel photoelectric bothway displacement measurement method

A displacement, photoelectric technology, applied in the field of photoelectric two-way displacement measurement, can solve the problems of low work efficiency, high cost, low degree of automation, etc., and achieve the effect of convenient installation, low cost and high test accuracy

Active Publication Date: 2017-11-24
ZHEJIANG HUADONG SURVEYING MAPPING & GEOINFORMATION
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  • Abstract
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  • Application Information

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Problems solved by technology

These instruments and equipment have high cost, low work efficiency, low degree of automation, many human influence factors, large measurement errors, and cannot realize online monitoring and automatic early warning.

Method used

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  • Novel photoelectric bothway displacement measurement method
  • Novel photoelectric bothway displacement measurement method
  • Novel photoelectric bothway displacement measurement method

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Embodiment Construction

[0035] In this embodiment, two laser beams at a certain angle are used to image on the imaging target surface I4 of the reference point 1 and the imaging target surface II5 of the measuring point 2 respectively, and the two laser beams are imaged on the imaging target surface through the laser spot imaging system. The imaging center of I4 and imaging target surface II5 and its center position changes to calculate the position and change of reference point 1 and measuring point 2 relative to the middle point 3, so as to measure the relative height difference and level of measuring point 2 and reference point 1 displacement.

[0036] Such as figure 1 As shown, this example includes two sets of laser emitters 6 and two laser spot imaging systems. The laser spot imaging system includes an imaging target surface, an imaging lens, an imaging optoelectronic device and a signal processing unit.

[0037] The imaging target surface I4 is set on the reference point 1, and the imaging ta...

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PUM

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Abstract

The invention relates to a novel photoelectric bothway displacement measurement method. The technical purpose is to provide the novel photoelectric bothway displacement measurement method which is high in precision, easy in networking, convenient to operate and low in cost and is of a non-contact type. According to the technical scheme, the photoelectric bothway displacement measurement method is characterized in that a first imaging target surface is arranged on a reference point, a second imaging target surface is arranged on a measurement point, a middle point is arranged out of the scope of a connecting line between the reference point and the measurement point, two sets of laser emitters are arranged on the middle point, the laser emitters emit laser beams corresponding to the first imaging target surface and the second imaging target surface respectively, the included angles among the laser beams emitted by the laser emitters are a fixed value, and light spots are formed on the first imaging target surface and the second imaging target surface through the two laser beams respectively. The novel photoelectric bothway displacement measurement method is applicable to measurement of vertical displacement and relatively horizontal displacement variation of two non-contact test points, and measurement of bothway displacement variation of a structural crack.

Description

technical field [0001] The invention relates to a new photoelectric two-way displacement measurement method. It is suitable for non-contact measurement of vertical displacement and relative horizontal displacement change between two test points, as well as measurement of two-way displacement change of structural cracks. Background technique [0002] At present, high-precision deformation and displacement are generally measured by instruments or sensors such as levels, total stations, crack gauges, and electronic levels, and most of them are measured manually. These instruments and equipment have high cost, low work efficiency, low degree of automation, many human influence factors, large measurement errors, and cannot realize online monitoring and automatic early warning. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a new photoelectric bidirectional displacement measurement method with high precision, non-con...

Claims

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Application Information

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IPC IPC(8): G01B11/02
Inventor 王群敏吴勇黄江华陈文华王烨晟
Owner ZHEJIANG HUADONG SURVEYING MAPPING & GEOINFORMATION
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