Optical measuring method for hole cubage

An optical measurement and hole volume technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of difficult to guarantee accuracy, easy to be limited by conditions, etc., to avoid scratches on holes, avoid probe wear, improve The effect of measurement accuracy

Inactive Publication Date: 2008-01-23
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0002] In the prior art, the measurement of the pore volume, especially for the approximately cylindrical or conical truncated holes, can usually be calculated by using geometric formulas after measuring parameters such as the diameter of the two ends of the hole and the length of the hole, but this is only It is suitable for the measurement of the volume of regular holes. When measuring the volume of irregular holes, for example, the method of segmented mechanical plug gauge or water injection can be used, but there are problems that the accuracy is difficult to guarantee and it is easy to be limited by conditions.

Method used

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  • Optical measuring method for hole cubage
  • Optical measuring method for hole cubage
  • Optical measuring method for hole cubage

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Embodiment approach 2

[0046] Fig. 3 is a schematic cross-sectional view of the optical hole measuring device used in Embodiment 2 of the present invention, the cross-section passing through the central axis of the device. Fig. 4 is a schematic diagram of the working principle of the optical measurement method according to Embodiment 2 of the present invention.

[0047] As shown in Figure 3 and Figure 4, the optical hole measuring device A 0 The reflective mirror 2 as a light reflective member is attached to the third frame 53 . The optical hole measuring device A 0 Among them, the laser generator 100 is different from the laser generator 1 in the above-mentioned optical hole measuring device A, and the rest of the components can refer to the optical hole measuring device A.

[0048] Optical hole measuring device A 0 Among them, the reflector 2 is a conical solid member, and the reflector 2 is used to reflect the laser beam emitted by the laser generator 100. Therefore, the cone angle of the refl...

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Abstract

The invention provides an optic measuring method for the volume of a hole, which comprises the following procedures: a. placing a laser source into the hole to be measured and turning on the laser; b. making a light pickup that is arranged opposite to the laser light to pick up the light reflected from the hole wall; c. driving the laser light and the light pickup to move along the axial direction of the hole in even speed; d. picking up in repeated way the light reflected by the hole wall, obtaining all data before the to-be-measured end of the hole, processing all data and getting the hole volume. In this way, the measurement with high accuracy of the volume of the hole can be achieved in a contactless way.

Description

technical field [0001] The invention relates to a method for measuring pore volume, in particular to an optical measurement method for pore volume measured by a structured light measuring sensor. Background technique [0002] In the prior art, the measurement of the pore volume, especially for the approximately cylindrical or conical truncated holes, can usually be calculated by using geometric formulas after measuring parameters such as the diameter of the two ends of the hole and the length of the hole, but this is only It is suitable for the measurement of the volume of regular holes. When measuring the volume of irregular holes, for example, segmented mechanical plug gauges or water injection methods can be used, but there are problems that the accuracy is difficult to guarantee and is easily limited by conditions. Contents of the invention [0003] The present invention is proposed in view of the above-mentioned actual situation, and its purpose is to provide an optic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00G01B21/00
Inventor 徐春广肖定国朱文娟冯忠伟郝娟周世圆
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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