JPS5763407A - Measuring method for bent angle of pipe - Google Patents

Measuring method for bent angle of pipe

Info

Publication number
JPS5763407A
JPS5763407A JP13970080A JP13970080A JPS5763407A JP S5763407 A JPS5763407 A JP S5763407A JP 13970080 A JP13970080 A JP 13970080A JP 13970080 A JP13970080 A JP 13970080A JP S5763407 A JPS5763407 A JP S5763407A
Authority
JP
Japan
Prior art keywords
angle
pipe
angles
rectilinear parts
light axis
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
JP13970080A
Other languages
Japanese (ja)
Inventor
Toshifuji Hirayama
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.)
KOBE GIKEN KOGYO KK
KOUBE GIKEN KOGYO KK
Original Assignee
KOBE GIKEN KOGYO KK
KOUBE GIKEN KOGYO 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 KOBE GIKEN KOGYO KK, KOUBE GIKEN KOGYO KK filed Critical KOBE GIKEN KOGYO KK
Priority to JP13970080A priority Critical patent/JPS5763407A/en
Publication of JPS5763407A publication Critical patent/JPS5763407A/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
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To enable the simple and precise measurement of the titled an angle even in case there is an obstacle at a bent part, by a method wherein a light axis is made to cross rectilinear parts at both sides of a bent part of a pipe, and angles of the light axis to the axial directions of the rectilinear parts are measured. CONSTITUTION:A light axis or the like is made to cross rectilinear parts 3 and 4 of the bent part of a pipe 1, and angles A and B of the light axis to the rectilinear parts 3 and 4, respectively, are measured to compute a desired bent angle C. For example, angle-measuring devies 5 and 6 are disposed on the upper surfaces of the rectilinear parts 3 and 4 at both sides of the bent part 2 of the large-calibred pipe 1, and laser ray is sent out to the angle-measuring device 6 at a receiving side from the angle-measuring device 5 at a transmitting side to measure said angles. The angles A and B are substracted from 180 deg.O' to compute the bent angle C.
JP13970080A 1980-10-05 1980-10-05 Measuring method for bent angle of pipe Pending JPS5763407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13970080A JPS5763407A (en) 1980-10-05 1980-10-05 Measuring method for bent angle of pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13970080A JPS5763407A (en) 1980-10-05 1980-10-05 Measuring method for bent angle of pipe

Publications (1)

Publication Number Publication Date
JPS5763407A true JPS5763407A (en) 1982-04-16

Family

ID=15251379

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13970080A Pending JPS5763407A (en) 1980-10-05 1980-10-05 Measuring method for bent angle of pipe

Country Status (1)

Country Link
JP (1) JPS5763407A (en)

Similar Documents

Publication Publication Date Title
AU7059191A (en) Improvement to gas/liquid ultrasonic flowmeter
DK373683A (en) LASER DOPPLER ANEMOMETER
JPS57141604A (en) Optical fiber
JPS5763407A (en) Measuring method for bent angle of pipe
JPS5438159A (en) Distance measurement apparatus
JPS5796203A (en) Contactless displacement detector employing optical fiber
EP0257959A3 (en) Optical fibre measurement apparatus and method
JPS539144A (en) Calibration of thickness gauge
JPS5337457A (en) Distance measuring device
JPS5555227A (en) Light sensor
JPS53132371A (en) Distance measuring device
CA2173564A1 (en) Method of and Device for Measuring the Refractive Index of Wafers of Vitreous Material
JPS5337473A (en) Measuring method of transmission path attenuation amount
JPS5269653A (en) Detector for displacement of scanning beam
JPS56115919A (en) Ultrasonic current meter for high temperature
JPS5757004A (en) Reflective antenna
JPS57179606A (en) Optical displacement gage
JPS57116233A (en) Checking device for end surface of optical fiber
JPS5585208A (en) Measurement of inner diameter
JPS5777904A (en) Thickness measuring of metal pipe
JPS571908A (en) Measuring method of distance
LETALICK Detection of obstacles by low flying aircraft(using CO 2 laser; mathematical model)
JPS57211007A (en) Optical axis oscillation type distance sensor
JPS5377555A (en) Light wave distance measuring device
JPS6454210A (en) Thickness measuring device