Photoelectric online testing system and method for the appearance and size of target moving at ultra high-speed

A technology of external dimensions and online testing, which is applied in the direction of measuring devices, optical devices, instruments, etc., and can solve problems such as measurement errors

Active Publication Date: 2017-07-28
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, due to the ultra-high-speed movement of the target, there are measurement errors in th

Method used

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  • Photoelectric online testing system and method for the appearance and size of target moving at ultra high-speed
  • Photoelectric online testing system and method for the appearance and size of target moving at ultra high-speed
  • Photoelectric online testing system and method for the appearance and size of target moving at ultra high-speed

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Embodiment 1

[0038] This embodiment discloses a photoelectric online test system for the external dimensions of ultra-high-speed moving targets. The schematic diagram of the test system is as follows: figure 1 As shown, it includes a laser radar imaging system 1 and a line array image sensor imaging system 2, and the test target is a super-high-speed moving cone target 3 . The lidar imaging system 1 includes a circuit board 1.1, a laser 1.2, a lens system 1.3, and an APD array 1.4. The line array image sensor imaging system 2 includes a beam splitter 2.1, an optical system 2.2 and a dual line array image sensor 2.3.

[0039] The laser radar imaging system 1 is used to measure the distance information of the ultra-high-speed moving conical target 3. The optical path is: the circuit board 1.1 controls the laser 1.2 to emit pulsed laser, and the pulsed laser passes through the lens system 1.3 and the lens system above the laser 1.2 respectively. 1.3 The beam splitter 2.1 whose optical axis i...

Embodiment 2

[0045] In this embodiment, a test method flow chart of an ultra-high-speed moving target external dimension photoelectric online test method is as follows image 3 As shown, the specific process is as follows:

[0046] (1) The circuit board 1.1 controls the laser 1.2 to emit laser light and irradiates the ultra-high-speed moving cone target 3, and the ultra-high-speed moving cone target 3 reflects the laser light and natural light in the environment;

[0047] (2) APD array 1.4 receives the laser light reflected by the ultra-high-speed moving cone target 3, and obtains the distance information of the ultra-high-speed moving cone target 3 through the processing of the circuit board 1.1;

[0048] (3) The two-line linear array image sensor 2.3 receives the natural light reflected by the ultra-high-speed moving cone target 3 and obtains the pixel information of the ultra-high-speed moving cone target 3 .

[0049] (4) Calculate the outer dimensions of the super-high-speed moving co...

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Abstract

The invention discloses a photoelectric online testing system and a method for the appearance and the size of a target moving at an ultra high-speed, which relate to an online testing system and a method for the appearance and the size of a target moving at an ultra high-speed and belong to the photoelectric testing field. The online testing system comprises a laser radar imaging system and a linear array image sensor imaging system, and the testing target is a conical target moving at an ultra high-speed. The laser radar imaging system comprises a circuit board, a laser, a lens system, and an APD array. The linear array image sensor imaging system comprises a light splitting lens, an optical system and a double-line linear array image sensor. The invention also discloses a photoelectric online testing method for the appearance and size of target moving at ultra high-speed. The technical problems the system and the method aim to solve are the testing of the appearance and the size of a target moving at an ultra high-speed. With the system and the method, it is possible to eliminate the measurement errors caused by the ultra high-speed motion and therefore, the testing accuracy is increased. The target is a conical target.

Description

technical field [0001] The invention belongs to the field of photoelectric testing, and relates to an online testing system and method for the external dimensions of a moving target, in particular to a photoelectric online testing system and method for the external dimensions of an ultra-high-speed moving target. Background technique [0002] With the development of image sensor technology, the technology of using image sensor as a detection device in photoelectric detection system for non-contact measurement of object dimensions has been more and more widely used. According to the dimensions of the image sensor, the test methods can be divided into two types: area array image sensor and line array image sensor. The two methods have the advantages of fast response and high precision, and have been widely used in the field of high-precision, high-speed online detection of various targets. With the increase of the moving speed of the target, more real-time and fast online mea...

Claims

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Application Information

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IPC IPC(8): G01B11/00
Inventor 郝群肖宇晴程阳曹杰宋萍张芳华
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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