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Comprehensive calibration apparatus for magnet-yoke magnetic particle flaw detector

A magnetic particle flaw detection and standard device technology, applied in the direction of material magnetic variables, etc., can solve problems such as operability, compliance, and lack of intelligence, and achieve the effects of clearly visible test data and curves, good frequency response characteristics, and high precision

Pending Publication Date: 2017-07-11
沧州市计量测试所
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  • Application Information

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Problems solved by technology

"JJF1458-2014 Calibration Specifications for Magnetic Yoke Magnetic Particle Detectors" requires calibration of the magnetizing current, lifting force, and test sensitivity of the yoke magnetic particle flaw detector. Conformity, intelligence, etc. are still lacking

Method used

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  • Comprehensive calibration apparatus for magnet-yoke magnetic particle flaw detector
  • Comprehensive calibration apparatus for magnet-yoke magnetic particle flaw detector
  • Comprehensive calibration apparatus for magnet-yoke magnetic particle flaw detector

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Embodiment Construction

[0023] The present invention will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0024] For ease of description, spatially relative terms such as "upper," "lower," "left," and "right" may be used herein to describe the relationship of one element or feature relative to another element or feature shown in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described ...

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Abstract

The invention discloses a comprehensive calibration apparatus for a magnet-yoke magnetic particle flaw detector. The comprehensive calibration apparatus comprises an apparatus body, a magnetization current measuring mechanism, a force measuring mechanism and an image acquisition mechanism. According to the invention, a Hall sensor is arranged, a switching cable is individually defined, and standard aviation plugs are selected and used, so the comprehensive calibration apparatus can be matched with most to-be-detected flaw detectors, built-in cables in the to-be-detected flaw detectors are prevented from breaking and dismounting, and nondestructive measurement of magnetization current is realized; a sliding rail and a high-precision tension and pressure transducer (a strain gauge type transducer) are mounted, so force values are accurately measured, and the comprehensive calibration apparatus has high precision, a wide measurement range, long service life, simple structure and good frequency response characteristics; and an arranged image acquisition module employs a contrast focusing type CCD photosensitive element with 3000, 000 physical pixels, so the comprehensive calibration apparatus has the advantages of high resolution, low interference by thermal noise, high automatic focusing efficiency, etc.

Description

technical field [0001] The invention relates to the technical field of detection device calibration, in particular to a comprehensive calibration standard device for a yoke type magnetic particle flaw detector. Background technique [0002] Yoke magnetic particle flaw detectors are widely used in non-destructive testing industries such as pipeline manufacturing and special equipment, and play an important role in quality control, so their performance requirements are getting higher and higher. "JJF1458-2014 Calibration Specifications for Yoke Magnetic Particle Detectors" requires calibration of the magnetizing current, lifting force and test sensitivity of yoke magnetic particle flaw detectors. Although there are many types of testing equipment in China, they are still in use in terms of operability, Conformity, intelligence and other aspects are still lacking. Therefore, it is imperative to develop a comprehensive calibration standard device that fully complies with calibr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/84
CPCG01N27/84
Inventor 段海涛赵国信刘海洋宗翔宇周进任冬华王翀高健张红欣王拴龙史炳文王一纯
Owner 沧州市计量测试所
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