Porous plate etalon for multi-sensor measurement system and combined error detection method

A multi-sensor, measurement system technology, applied in the field of standard devices, can solve the problem that the standard device cannot be used for sensor error detection at the same time, and achieve the effect of simple layout

Active Publication Date: 2017-08-18
CHONGQING ACAD OF METROLOGY & QUALITY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a standard used in a multi-sensor measurement system to solve the technical problem that the standard in the prior art cannot

Method used

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  • Porous plate etalon for multi-sensor measurement system and combined error detection method
  • Porous plate etalon for multi-sensor measurement system and combined error detection method
  • Porous plate etalon for multi-sensor measurement system and combined error detection method

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specific Embodiment approach 1

[0047] A multi-well plate standard for use in multi-sensor measurement systems such as figure 1 As shown, it includes a flat plate body 1, and the plate body 1 is provided with A-type longitudinal measuring holes and B-type transverse measuring holes distributed according to their respective linear topological structures; the A-type longitudinal measuring holes and B-type transverse measuring holes The measuring holes are all composed of conical holes 2 and circular holes 3 on the same axis, the large end of the conical hole 2 is located on the upper surface of the plate body 1, and its small end communicates with the circular hole 3 located on the lower surface of the plate body 1, The diameter of the small end of the tapered hole 2 is equal to the diameter of the circular hole 3; the diameter d of the circular hole 3 is 10mm≤d≤51mm, the height c of the circular hole 3≤0.3mm, and the roundness of the circular hole 3 less than 1 μm; the cone angle θ of the tapered hole 2 is 30...

specific Embodiment approach 2

[0053] The difference between the porous plate standard of this specific embodiment and specific embodiment 1 is:

[0054] In this specific embodiment, the extension distance L 1 and extension distance L 2 Both are 60mm; the cone angle θ of the cone hole is 45°, and the diameter of the circular hole is 12mm; the plate body is made of high-speed steel or ceramic material, and the flatness of the plate body is lower than 2 μm. In this way, the standard can be adapted to a multi-sensor measurement system with a large measurement range and high precision; the standard made of high-speed steel or ceramic material has good dimensional stability and is not easy to deform; the flatness of the strip is less than 2 μm , can improve the precision of the standard itself, thereby improving the sampling precision and reducing the error between the measured value and the actual value.

[0055] In this specific embodiment, if figure 2 As shown, there are a total of 12 measurement holes on...

specific Embodiment approach 3

[0057] This specific embodiment samples the porous plate standard device in the specific embodiment 2 to carry out error detection to the multi-sensor measurement system, such as Figure 2 to Figure 4 shown.

[0058] A joint error detection method using the porous plate standard of the present invention, the multi-sensor measurement system has n types of sensors for size measurement, and at least includes any one of a contact sensor, an image sensor or a laser sensor, The multi-sensor of this specific embodiment has 3 kinds of sensors: 3 kinds of sensors of contact sensor 1, image sensor 2 and laser sensor, comprise the following steps:

[0059]Step 1: Number all measurement wells on the multiwell plate standard:

[0060] Number the longitudinal measurement holes of category A: number the first-level category A node located at the upper end of the same vertical line as A01, and the first-level category A node at the lower end as A02, and the two left and right level two categ...

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Abstract

The invention relates to a porous plate etalon for a multi-sensor measurement system. The etalon includes a plate body, the plate body is provided with an A-type vertical measuring hole and a B-type transverse measuring hole distributed according to the respective linear topology structures, and each of the A-type vertical measuring hole and the B-type transverse measuring hole is composed of a conical hole and a circular hole that are coaxial. The invention further relates to a combined error detection method including numbering the measuring holes in the etalon through the adoption of a 12-hole etalon; measuring the actual values including the diameter of the circular holes by means of a high-precision coordinate measuring instrument; sampling each measuring holes according to the shortest sampling path by each sensor in the multi-sensor measurement system; and calculating the circle center coordinates of the circular hole in each measuring hole and the diameter measurement value of the circular hole, respectively calculating each type of combined error, and determining whether each combined error is qualified or not. According to the invention, the demand of the combined error detection of the multi-sensor measurement system including the optical, image, and contact sensors at the same time can be met.

Description

technical field [0001] The invention relates to a standard, in particular to a standard for calibration, error correction and coordinate value traceability for a multi-sensor measurement system. The invention also relates to a method for detecting joint multi-sensor errors. Background technique [0002] With the rapid development of advanced manufacturing fields such as automobiles and motorcycles, aerospace, high-speed rail, ships, and medical equipment, a large number of high-end products use complex parts. These parts have the characteristics of multi-scale feature size and difficult measurement, and their accuracy directly affects the product. Final quality and service life. No single sensor can measure all the characteristics of such parts. In the field of geometric quantity measurement, the multi-sensor coordinate measurement system has become an important means of high-precision measurement of multiple elements of complex parts by taking advantage of the complementa...

Claims

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Application Information

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IPC IPC(8): G01D18/00
CPCG01D18/00
Inventor 周森徐健陶磊陈龙蒋聪颜宇
Owner CHONGQING ACAD OF METROLOGY & QUALITY INST
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