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Method and apparatus for measuring the concentration of component in inspection liquid used for wet-type fluorescent magnetic particle testing

A fluorescent magnetic powder and concentration measurement technology, which is applied in the direction of fluorescence/phosphorescence, optical test flaw/defect, color/spectral characteristic measurement, etc., can solve the problem of weakening anti-rust effect and achieve the effect of improving measurement accuracy

Active Publication Date: 2013-01-16
MARKTEC CORP
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Problems solved by technology

Furthermore, if the concentration of the antirust agent also falls below the specified concentration, the antirust effect of the object to be tested will be weakened.

Method used

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  • Method and apparatus for measuring the concentration of component in inspection liquid used for wet-type fluorescent magnetic particle testing
  • Method and apparatus for measuring the concentration of component in inspection liquid used for wet-type fluorescent magnetic particle testing
  • Method and apparatus for measuring the concentration of component in inspection liquid used for wet-type fluorescent magnetic particle testing

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Embodiment Construction

[0060] Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings. First, as known, the inspection liquid used in the wet fluorescent magnetic particle flaw detection test is prepared by mixing fluorescent magnetic powder, a dispersant, and if necessary, a rust inhibitor.

[0061] Then, the details of these components are, for example, in the above-mentioned JP-A-2009-109424, or as described in JP-A-2009-109424, etc., as the fluorescent magnetic powder, for example, commercially available magnetic powder (in the form of ferric oxide particles Or magnetically conductive particles such as pure iron particles use synthetic resin binders such as cellulose acetate-based synthetic resins or polyvinyl butyral-based synthetic resins, and attach Lumargen Yellow 50790 (trade name), produced by BASF, Median diameter 3~70μm formed with fluorescent pigments such as Festa A (trade name) and Swada Co., Ltd.: Displayed based on...

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Abstract

In the method, the inspection liquid is stirred and drawn into a transparent measurement container 3. Then, the inspection liquid in the measurement container 3 is irradiated on one side thereof with beams of light from light sources 4a, 4b to capture transmitted beams and visible radiations emitted by excitation. The transmitted beam and the visible radiation are used to measure the concentration of each component in the inspection liquid on the basis of each of the detected values that are provided by detectors 5, 7 for detecting the transmitted beam and a detector 6 for detecting the visible radiation emitted by excitation. The method also measures the concentration of each component in the inspection liquid on the basis of variations in the detected values provided by each detector, the variations resulting from the different sedimentation properties of each component with time.

Description

technical field [0001] The present invention relates to a wet-type fluorescent magnetic particle flaw detection test in which an inspection liquid mixed with at least fluorescent magnetic powder is brought into contact with a magnetized metal surface of an object to be tested, and the flaw is detected by allowing the fluorescent magnetic powder to gather and adhere to the flaw on the surface. In more detail, it relates to a measurement method and a measurement device for the concentration of components contained in a test solution. Background technique [0002] The wet fluorescent magnetic particle flaw detection test is a well-known non-destructive inspection method such as described in Patent Documents 1 and 2 in accordance with JIS-Z-2320. When there are flaws such as cracks on the surface of these metals, the inspection liquid with magnetic powder and the like adheres to the magnetic poles generated on the flaws. Conduct flaw detection. The inspection liquid used in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/33G01N21/35G01N21/64G01N21/91G01N27/84
CPCG01N21/91G01N27/84
Inventor 松本谦二藤本贵司小松庆亮逢坂俊治
Owner MARKTEC CORP
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