JPS56153231A - Stress measuring method - Google Patents

Stress measuring method

Info

Publication number
JPS56153231A
JPS56153231A JP5669380A JP5669380A JPS56153231A JP S56153231 A JPS56153231 A JP S56153231A JP 5669380 A JP5669380 A JP 5669380A JP 5669380 A JP5669380 A JP 5669380A JP S56153231 A JPS56153231 A JP S56153231A
Authority
JP
Japan
Prior art keywords
signal
infrared
load
same area
different loads
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.)
Granted
Application number
JP5669380A
Other languages
Japanese (ja)
Other versions
JPS6236526B2 (en
Inventor
Akihisa Masuki
Mamoru Irizuki
Yoji Nakayama
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.)
Jeol Ltd
Original Assignee
Jeol Ltd
Nihon Denshi KK
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 Jeol Ltd, Nihon Denshi KK filed Critical Jeol Ltd
Priority to JP5669380A priority Critical patent/JPS56153231A/en
Publication of JPS56153231A publication Critical patent/JPS56153231A/en
Publication of JPS6236526B2 publication Critical patent/JPS6236526B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
    • G01L1/248—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet using infrared

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radiation Pyrometers (AREA)

Abstract

PURPOSE:To ensure a simple measurement with no contact for the stress distribution, by detecting the infrared-rays radiated from the same area of an object to be measured to which the load varing with time is applied with two timings by which different loads are applied. CONSTITUTION:The infrared-rays radiated from the same area or almost the same area of the object 4 to be measured to which the load varying with time is applied are detected by the infrared-ray detector 9 with at least two different timings by which different loads are applied. The signal corresponding to the width of temperature variation during application of different loads is obtained. Based on this signal, the signal is divided through the divider circuit 16 and by the signal proportional to the temperature of the area where no load is applied. The signal thus obtained is displayed or recorded by the cathode-ray tube 19 or the like via the scan signal producing circuit 22.
JP5669380A 1980-04-28 1980-04-28 Stress measuring method Granted JPS56153231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5669380A JPS56153231A (en) 1980-04-28 1980-04-28 Stress measuring method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5669380A JPS56153231A (en) 1980-04-28 1980-04-28 Stress measuring method

Publications (2)

Publication Number Publication Date
JPS56153231A true JPS56153231A (en) 1981-11-27
JPS6236526B2 JPS6236526B2 (en) 1987-08-07

Family

ID=13034524

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5669380A Granted JPS56153231A (en) 1980-04-28 1980-04-28 Stress measuring method

Country Status (1)

Country Link
JP (1) JPS56153231A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5794627A (en) * 1980-12-05 1982-06-12 Komatsu Ltd Stress distribution measuring instrument
US5349870A (en) * 1989-07-03 1994-09-27 Sira Limited Method and apparatus for detecting stress in an object

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5794627A (en) * 1980-12-05 1982-06-12 Komatsu Ltd Stress distribution measuring instrument
US5349870A (en) * 1989-07-03 1994-09-27 Sira Limited Method and apparatus for detecting stress in an object

Also Published As

Publication number Publication date
JPS6236526B2 (en) 1987-08-07

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