JPS57114841A - Method and device for measuring treated surface of backing for painting - Google Patents

Method and device for measuring treated surface of backing for painting

Info

Publication number
JPS57114841A
JPS57114841A JP106281A JP106281A JPS57114841A JP S57114841 A JPS57114841 A JP S57114841A JP 106281 A JP106281 A JP 106281A JP 106281 A JP106281 A JP 106281A JP S57114841 A JPS57114841 A JP S57114841A
Authority
JP
Japan
Prior art keywords
rust
wavelength
filters
density
filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP106281A
Other languages
Japanese (ja)
Inventor
Shozo Oota
Kiyomi Tomoshige
Junichi Yamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP106281A priority Critical patent/JPS57114841A/en
Publication of JPS57114841A publication Critical patent/JPS57114841A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

PURPOSE:To perform objective numerical evaluation with respect to the degree of rustby detecting the light of only the rust by utilizing the difference in the wavelength of rust and the wavelength of paint film. CONSTITUTION:When a switch 16 is turned on, an optical fiber 3 for optical transmission is lighted to irradiate by a battery 1. When an attachment 5 of a measuring probe 4 is placed on a measuring surface, the density of the measuring surface is detected by means of a photodetecting optical fiber 7 coaxial to the fiber 3. This is passed through a long wave (for example, 670mum) filter 8 and a short wave (for example, 430mum) filter 9, and the outputs from both filters 8, 9 are subtracted and the result is displayed in a display device 14. Since the density of only the rust is detected by cutting the wavelength of the paint film component with the filters of a short wave and a long wave in this way, the decision of high reliability is accomplished.
JP106281A 1981-01-09 1981-01-09 Method and device for measuring treated surface of backing for painting Pending JPS57114841A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP106281A JPS57114841A (en) 1981-01-09 1981-01-09 Method and device for measuring treated surface of backing for painting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP106281A JPS57114841A (en) 1981-01-09 1981-01-09 Method and device for measuring treated surface of backing for painting

Publications (1)

Publication Number Publication Date
JPS57114841A true JPS57114841A (en) 1982-07-16

Family

ID=11491042

Family Applications (1)

Application Number Title Priority Date Filing Date
JP106281A Pending JPS57114841A (en) 1981-01-09 1981-01-09 Method and device for measuring treated surface of backing for painting

Country Status (1)

Country Link
JP (1) JPS57114841A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0232237A (en) * 1988-06-11 1990-02-02 Daimler Benz Ag Method and apparatus for measuring anticorrosiveness of deeply drawable iron plate for automobile body part
JP2007100344A (en) * 2005-10-03 2007-04-19 Okabe Co Ltd Method for grating crib work

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0232237A (en) * 1988-06-11 1990-02-02 Daimler Benz Ag Method and apparatus for measuring anticorrosiveness of deeply drawable iron plate for automobile body part
JP2007100344A (en) * 2005-10-03 2007-04-19 Okabe Co Ltd Method for grating crib work

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