FR2306437B2 - - Google Patents

Info

Publication number
FR2306437B2
FR2306437B2 FR7510602A FR7510602A FR2306437B2 FR 2306437 B2 FR2306437 B2 FR 2306437B2 FR 7510602 A FR7510602 A FR 7510602A FR 7510602 A FR7510602 A FR 7510602A FR 2306437 B2 FR2306437 B2 FR 2306437B2
Authority
FR
France
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.)
Expired
Application number
FR7510602A
Other languages
French (fr)
Other versions
FR2306437A2 (en
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.)
Societe Anonyme de Telecommunications SAT
Original Assignee
Societe Anonyme de Telecommunications SAT
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 Societe Anonyme de Telecommunications SAT filed Critical Societe Anonyme de Telecommunications SAT
Priority to FR7510602A priority Critical patent/FR2306437A2/en
Priority to US05/590,034 priority patent/US4012870A/en
Priority to DE2528575A priority patent/DE2528575B2/en
Publication of FR2306437A2 publication Critical patent/FR2306437A2/en
Application granted granted Critical
Publication of FR2306437B2 publication Critical patent/FR2306437B2/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
    • G01R33/18—Measuring magnetostrictive properties
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H13/00—Measuring resonant frequency

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
FR7510602A 1974-07-03 1975-04-04 Oscillating bar frequency measuring device - uses change of magnetisation caused by change of length and length of bar may be adjusted Granted FR2306437A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7510602A FR2306437A2 (en) 1975-04-04 1975-04-04 Oscillating bar frequency measuring device - uses change of magnetisation caused by change of length and length of bar may be adjusted
US05/590,034 US4012870A (en) 1974-07-03 1975-06-25 Apparatus for measuring and changing vibration frequency of metal B
DE2528575A DE2528575B2 (en) 1974-07-03 1975-06-26 Device for measuring and, if necessary, changing the natural oscillation frequencies of a metallic rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7510602A FR2306437A2 (en) 1975-04-04 1975-04-04 Oscillating bar frequency measuring device - uses change of magnetisation caused by change of length and length of bar may be adjusted

Publications (2)

Publication Number Publication Date
FR2306437A2 FR2306437A2 (en) 1976-10-29
FR2306437B2 true FR2306437B2 (en) 1978-12-01

Family

ID=9153541

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7510602A Granted FR2306437A2 (en) 1974-07-03 1975-04-04 Oscillating bar frequency measuring device - uses change of magnetisation caused by change of length and length of bar may be adjusted

Country Status (1)

Country Link
FR (1) FR2306437A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2413643A2 (en) * 1977-12-28 1979-07-27 Lignes Telegraph Telephon Mechanical resonator resonance frequency measuring device - has two coils with voltage input of one being amplified and filtered, and uses magnetic impulses

Also Published As

Publication number Publication date
FR2306437A2 (en) 1976-10-29

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