JPS56107107A - Measuring device for elongation and difference in elongation of steam turbine - Google Patents

Measuring device for elongation and difference in elongation of steam turbine

Info

Publication number
JPS56107107A
JPS56107107A JP1070980A JP1070980A JPS56107107A JP S56107107 A JPS56107107 A JP S56107107A JP 1070980 A JP1070980 A JP 1070980A JP 1070980 A JP1070980 A JP 1070980A JP S56107107 A JPS56107107 A JP S56107107A
Authority
JP
Japan
Prior art keywords
elongation
photofibers
difference
rotary body
zone
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
JP1070980A
Other languages
Japanese (ja)
Inventor
Masanori Takahashi
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 JP1070980A priority Critical patent/JPS56107107A/en
Publication of JPS56107107A publication Critical patent/JPS56107107A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge

Abstract

PURPOSE:To enable accurate measurement of elongation or the difference in elongation by meas of a simple structure by a method wherein a group of the bundles of photofibers composed of photofibers for transmission and reception is arranged in opposition to a nonphotoreflecting zone provided in a rotary body and relative displacement in position of the bundles of photofibers and the nonphotoreflecting zone is detected. CONSTITUTION:The photofiber 3 for transmission located in the center and the photofiber 4 for receiving light surrounding the former constitute the bundle 2 of photofibers, which is arranged in a row in opposition to the nonreflecting zone 8 of the rotary body 5. The light 9 from a light source 6 falls on the rotary body 5 through the photofibers 3 for transmission of the bundle 2 of photofibers and the reflected light 10 enters a receiver 7 through the photofibers 4 for reception. In accordance with the relative displacement in position of the nonreflecting zone 8 and the bundle 2 of photofibers, the elongation or the difference in elongation of the rotary body 5 is measured by the receiver 7. By this constitution, accurate measurement of the elongation or the difference in elongation can be performed by means of a simple structure.
JP1070980A 1980-01-31 1980-01-31 Measuring device for elongation and difference in elongation of steam turbine Pending JPS56107107A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1070980A JPS56107107A (en) 1980-01-31 1980-01-31 Measuring device for elongation and difference in elongation of steam turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1070980A JPS56107107A (en) 1980-01-31 1980-01-31 Measuring device for elongation and difference in elongation of steam turbine

Publications (1)

Publication Number Publication Date
JPS56107107A true JPS56107107A (en) 1981-08-25

Family

ID=11757825

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1070980A Pending JPS56107107A (en) 1980-01-31 1980-01-31 Measuring device for elongation and difference in elongation of steam turbine

Country Status (1)

Country Link
JP (1) JPS56107107A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63120059A (en) * 1986-10-17 1988-05-24 スパータニクス・エル・ティ・ディ Material aligner
JPH02141811U (en) * 1989-04-28 1990-11-29

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63120059A (en) * 1986-10-17 1988-05-24 スパータニクス・エル・ティ・ディ Material aligner
JPH02141811U (en) * 1989-04-28 1990-11-29

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