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JPS5567605A - Thickness measuring method by ultrasonic wave - Google Patents

Thickness measuring method by ultrasonic wave

Info

Publication number
JPS5567605A
JPS5567605A JP14101678A JP14101678A JPS5567605A JP S5567605 A JPS5567605 A JP S5567605A JP 14101678 A JP14101678 A JP 14101678A JP 14101678 A JP14101678 A JP 14101678A JP S5567605 A JPS5567605 A JP S5567605A
Authority
JP
Japan
Prior art keywords
thickness
sensor
transmission
tilt
point
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
JP14101678A
Other languages
Japanese (ja)
Inventor
Hiroshi Maeda
Takashi Minagawa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14101678A priority Critical patent/JPS5567605A/en
Publication of JPS5567605A publication Critical patent/JPS5567605A/en
Pending legal-status Critical Current

Links

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  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)

Abstract

PURPOSE: To enable to measure the thickness even with unclear sound speed for measured material, by obtaining the thickness with the operation from the measuring value of vertical transmission and reception sensor and tilt transmission and reception sensor.
CONSTITUTION: Taking the thickness of measured material at t, longitudinal sound speed as C, propagation time of sound wave from vertical transmission and reception sensor 2 to the point P Tt as, propagation time of sound wave from the tilt sensor 3 to the point P as Tl, distance between the vertical transmission and reception sensor 2 and tilt transmission sensor 3 as l1, and the distance between the tilt transmission sensor 3 and the point P as l2. Further, the values of Tt, Tl, and l1 is actually measured and the value of thickness t is obtained from the operation of the equation t=l1.Tt/(Tl2-Tt2)1/2. Thus, even if the sound speed C in measured material is unclear, the thickness t can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP14101678A 1978-11-17 1978-11-17 Thickness measuring method by ultrasonic wave Pending JPS5567605A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14101678A JPS5567605A (en) 1978-11-17 1978-11-17 Thickness measuring method by ultrasonic wave

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14101678A JPS5567605A (en) 1978-11-17 1978-11-17 Thickness measuring method by ultrasonic wave

Publications (1)

Publication Number Publication Date
JPS5567605A true JPS5567605A (en) 1980-05-21

Family

ID=15282225

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14101678A Pending JPS5567605A (en) 1978-11-17 1978-11-17 Thickness measuring method by ultrasonic wave

Country Status (1)

Country Link
JP (1) JPS5567605A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6122208A (en) * 1984-07-11 1986-01-30 Nippon Steel Corp Simultaneous measurement of body dimension and sound velocity
JPS6122209A (en) * 1984-07-11 1986-01-30 Nippon Steel Corp Simultaneous measurement of body dimension and sound velocity
JPS6439510A (en) * 1987-08-06 1989-02-09 Hitachi Construction Machinery Thickness measuring method
JP2000343915A (en) * 1999-06-09 2000-12-12 Mitsubishi Heavy Ind Ltd Measuring method and measuring device for cross sectional structure of tire
JP2010117294A (en) * 2008-11-14 2010-05-27 Mitsubishi Heavy Ind Ltd Method and device for measuring ultrasonic wave

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6122208A (en) * 1984-07-11 1986-01-30 Nippon Steel Corp Simultaneous measurement of body dimension and sound velocity
JPS6122209A (en) * 1984-07-11 1986-01-30 Nippon Steel Corp Simultaneous measurement of body dimension and sound velocity
JPS6439510A (en) * 1987-08-06 1989-02-09 Hitachi Construction Machinery Thickness measuring method
JP2000343915A (en) * 1999-06-09 2000-12-12 Mitsubishi Heavy Ind Ltd Measuring method and measuring device for cross sectional structure of tire
JP2010117294A (en) * 2008-11-14 2010-05-27 Mitsubishi Heavy Ind Ltd Method and device for measuring ultrasonic wave

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