JPS5478186A - Pressure measuring sheet - Google Patents

Pressure measuring sheet

Info

Publication number
JPS5478186A
JPS5478186A JP14474777A JP14474777A JPS5478186A JP S5478186 A JPS5478186 A JP S5478186A JP 14474777 A JP14474777 A JP 14474777A JP 14474777 A JP14474777 A JP 14474777A JP S5478186 A JPS5478186 A JP S5478186A
Authority
JP
Japan
Prior art keywords
layer
color former
layers
capsule
pressure
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
JP14474777A
Other languages
Japanese (ja)
Inventor
Makoto Yoshida
Akio Ishizuka
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP14474777A priority Critical patent/JPS5478186A/en
Publication of JPS5478186A publication Critical patent/JPS5478186A/en
Pending 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
    • G01L1/247—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 distributed sensing elements, e.g. microcapsules

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

PURPOSE:To obtain the value of pressure at high precision which gives specified gradiaent in the characteristic curve to show the relation between the pressure and concentration, by disposing the developer layer between capsule layers containing the color former. CONSTITUTION:A capsule layer 2 containing color former, a developer layer 3, and a capsule layer 4 containing color former are provided on a supporting body 1 in this order. By locating the layers 2 and 4 at both side of the layer 3, the area of contact between the layers containing the color former and the layer 3, which permits adjustment of coloring concentration. Furthermore, by using two kinds of microcapsule layers differing in rupture strength, the adjustment of the gradiaent of characteristic curve may become easier, so that the measurment may be possible in a wide range. Thus, the pressure measuring sheet without fog and excellent in shelf life may be obtained.
JP14474777A 1977-12-02 1977-12-02 Pressure measuring sheet Pending JPS5478186A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14474777A JPS5478186A (en) 1977-12-02 1977-12-02 Pressure measuring sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14474777A JPS5478186A (en) 1977-12-02 1977-12-02 Pressure measuring sheet

Publications (1)

Publication Number Publication Date
JPS5478186A true JPS5478186A (en) 1979-06-22

Family

ID=15369417

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14474777A Pending JPS5478186A (en) 1977-12-02 1977-12-02 Pressure measuring sheet

Country Status (1)

Country Link
JP (1) JPS5478186A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5554323A (en) * 1992-11-05 1996-09-10 Fuji Photo Film Co., Ltd. Process for producing microcapsules
JP2020073907A (en) * 2016-09-29 2020-05-14 富士フイルム株式会社 Material composition for pressure measurement, and material set for pressure measurement
US11230130B2 (en) 2017-06-02 2022-01-25 Fujifilm Corporation Material composition for pressure measurement, material for pressure measurement, and material set for pressure measurement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5554323A (en) * 1992-11-05 1996-09-10 Fuji Photo Film Co., Ltd. Process for producing microcapsules
JP2020073907A (en) * 2016-09-29 2020-05-14 富士フイルム株式会社 Material composition for pressure measurement, and material set for pressure measurement
US11958307B2 (en) 2016-09-29 2024-04-16 Fujifilm Corporation Material composition for pressure measurement, material for pressure measurement, and material set for pressure measurement
US11230130B2 (en) 2017-06-02 2022-01-25 Fujifilm Corporation Material composition for pressure measurement, material for pressure measurement, and material set for pressure measurement

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