JPS5547402A - Measuring instrument for surface area of metallic material - Google Patents

Measuring instrument for surface area of metallic material

Info

Publication number
JPS5547402A
JPS5547402A JP12078178A JP12078178A JPS5547402A JP S5547402 A JPS5547402 A JP S5547402A JP 12078178 A JP12078178 A JP 12078178A JP 12078178 A JP12078178 A JP 12078178A JP S5547402 A JPS5547402 A JP S5547402A
Authority
JP
Japan
Prior art keywords
dissolution current
surface area
maximum dissolution
current
measuring instrument
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
JP12078178A
Other languages
Japanese (ja)
Inventor
Yuji Nishikawa
Juichi Fukakura
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12078178A priority Critical patent/JPS5547402A/en
Publication of JPS5547402A publication Critical patent/JPS5547402A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

PURPOSE: To obtain a measuring instrument that can measure correctly and simply a surface area of complicated shape by measuring the maximum dissolution current when the electrolyte is active.
CONSTITUTION: When voltage is impressed between a measured metal 3 and an electrode 4, dissolution current flows between them. By changing the voltage on the condition a constant potential polarization curve is obtained through the connection between the dissolution current and the electric potential near the measured metal 3. In this case the maximum dissolution current value is shown and it is known that this maximum dissolution current is proportional to the area of a matter when it is of the same material. And this current makes no connection with histories such as material temperature, working, etc. and is constant. Regarding standard materials, if the maximum dissolution current density pecular to a material is given, it is possible to measure correctly and easily the surface area of any metallic of complicated shape by detecting its maximum dissolution current IM and operate IM/δ.
COPYRIGHT: (C)1980,JPO&Japio
JP12078178A 1978-09-30 1978-09-30 Measuring instrument for surface area of metallic material Pending JPS5547402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12078178A JPS5547402A (en) 1978-09-30 1978-09-30 Measuring instrument for surface area of metallic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12078178A JPS5547402A (en) 1978-09-30 1978-09-30 Measuring instrument for surface area of metallic material

Publications (1)

Publication Number Publication Date
JPS5547402A true JPS5547402A (en) 1980-04-03

Family

ID=14794835

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12078178A Pending JPS5547402A (en) 1978-09-30 1978-09-30 Measuring instrument for surface area of metallic material

Country Status (1)

Country Link
JP (1) JPS5547402A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3408726A1 (en) * 1983-03-11 1984-09-13 Jean-Claude Dr. Wallisellen Puippe METHOD FOR DETERMINING THE SURFACE OF AN ELECTRICALLY CONDUCTIVE OBJECT

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3408726A1 (en) * 1983-03-11 1984-09-13 Jean-Claude Dr. Wallisellen Puippe METHOD FOR DETERMINING THE SURFACE OF AN ELECTRICALLY CONDUCTIVE OBJECT
FR2542443A1 (en) * 1983-03-11 1984-09-14 Puippe Jean Claude METHOD FOR DETERMINING WITH PRECISION THE SURFACE AREA OF AN ELECTRICALLY CONDUCTIVE CONFORMING BODY
US4840708A (en) * 1983-03-11 1989-06-20 Puippe Jean Claude Process for the precise determination of the surface area of an electrically conducting shaped body

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