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Photoelectric two-way displacement measurement method

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

Active Publication Date: 2019-10-15
ZHEJIANG HUADONG SURVEYING MAPPING & GEOINFORMATION
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  • Abstract
  • Description
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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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  • Photoelectric two-way displacement measurement method
  • Photoelectric two-way displacement measurement method
  • Photoelectric two-way displacement measurement method

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Embodiment Construction

[0035] In this embodiment, two laser beams at a certain angle are respectively imaged on the imaging target surface I4 of the reference point 1 and the imaging target surface II5 of the measurement point 2, and the laser spot imaging system is used to obtain two laser beams on the imaging target surface. The imaging center of Ⅰ4 and imaging target surface Ⅱ5 and its center position changes are used to calculate the position and change of reference point 1 and measuring point 2 relative to intermediate point 3, thereby measuring 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 transmitters 6 and two laser spot imaging systems. The laser spot imaging system includes an imaging target surface, an imaging lens, an imaging photoelectric 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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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 method for photoelectric bidirectional displacement measurement. It is suitable for measuring the vertical and relative horizontal displacement changes between two non-contact test points, as well as the two-way displacement change measurement of structural cracks. Background technique [0002] At present, high-precision deformation and displacement are generally measured by instruments or sensors such as level, total station, crack meter, electronic level, etc., and most of them use manual measurement methods. These instruments have high cost, low work efficiency, low automation, many human influence factors, large measurement errors, and cannot realize online monitoring and automatic early warning. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a high-precision, non-contact, easy-to-network, convenient operation, and low-cost new photoelectric two-way displacement ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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