JPS5513865A - Measuring unit for complex spring constant - Google Patents

Measuring unit for complex spring constant

Info

Publication number
JPS5513865A
JPS5513865A JP8654878A JP8654878A JPS5513865A JP S5513865 A JPS5513865 A JP S5513865A JP 8654878 A JP8654878 A JP 8654878A JP 8654878 A JP8654878 A JP 8654878A JP S5513865 A JPS5513865 A JP S5513865A
Authority
JP
Japan
Prior art keywords
unit
detection part
fixed
center line
piece
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
JP8654878A
Other languages
Japanese (ja)
Inventor
Takeshi Shiratori
Nobutaka Tokuyo
Sumio Iino
Keiji Kondo
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP8654878A priority Critical patent/JPS5513865A/en
Publication of JPS5513865A publication Critical patent/JPS5513865A/en
Pending legal-status Critical Current

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  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

PURPOSE: To increase a resonance frequency at the time of measurement by increasing the rigidity of a unit by providing several contactless displacement detectors symmetrically on a center line between an excitation part and force detection part.
CONSTITUTION: By jig 18 combined to force detection part 17 and test-piece fitting table 13 fixed to excitation unit 11, testing spring 19 is mounted so that its center line will agree with that between detection part 17 and unit 11. Each movable piece 23 fixed at one terminal to guard part 13a of table 13 and at the other to guard 18a of jig 18 via a magnetic member for displacement detection is provided without coming in contact with the inner wall of fixed piece 22 provided with a coil at its inner circumference, and several contactless displacement detectors 21... formed of the displacement-detecting magnetic member and fixed piece 22 are arranged in parallel symmetrically on the center line between unit 11 and detection part 17. This constitution allows an increase in rigidity of the measuring unit, vibtates spring 19 at a resonance frequency and realizes excellent tests over a broad frequency band.
COPYRIGHT: (C)1980,JPO&Japio
JP8654878A 1978-07-16 1978-07-16 Measuring unit for complex spring constant Pending JPS5513865A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8654878A JPS5513865A (en) 1978-07-16 1978-07-16 Measuring unit for complex spring constant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8654878A JPS5513865A (en) 1978-07-16 1978-07-16 Measuring unit for complex spring constant

Publications (1)

Publication Number Publication Date
JPS5513865A true JPS5513865A (en) 1980-01-31

Family

ID=13890048

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8654878A Pending JPS5513865A (en) 1978-07-16 1978-07-16 Measuring unit for complex spring constant

Country Status (1)

Country Link
JP (1) JPS5513865A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995031887A3 (en) * 1995-04-12 1996-02-15 Bridgestone Corp Exothermic fatigue measurement method of viscoelastic body and hydraulic servo system flexometer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5222556A (en) * 1975-08-14 1977-02-19 Mitsubishi Heavy Ind Ltd Device for uncoiling coiled strip

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5222556A (en) * 1975-08-14 1977-02-19 Mitsubishi Heavy Ind Ltd Device for uncoiling coiled strip

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995031887A3 (en) * 1995-04-12 1996-02-15 Bridgestone Corp Exothermic fatigue measurement method of viscoelastic body and hydraulic servo system flexometer
US5959215A (en) * 1995-04-12 1999-09-28 Bridgestone Corporation Heat build-up/fatigue measuring method for viscoelastic body and hydraulic servo flexometer

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