FR2259358A1 - Vibration frequency measuring method - uses microphone for sensing and circuit for discriminating and counting peaks - Google Patents

Vibration frequency measuring method - uses microphone for sensing and circuit for discriminating and counting peaks

Info

Publication number
FR2259358A1
FR2259358A1 FR7435470A FR7435470A FR2259358A1 FR 2259358 A1 FR2259358 A1 FR 2259358A1 FR 7435470 A FR7435470 A FR 7435470A FR 7435470 A FR7435470 A FR 7435470A FR 2259358 A1 FR2259358 A1 FR 2259358A1
Authority
FR
France
Prior art keywords
peaks
frequency measuring
circuit
discriminating
sensing
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.)
Granted
Application number
FR7435470A
Other languages
English (en)
French (fr)
Other versions
FR2259358B1 (enrdf_load_stackoverflow
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.)
Poclain SA
Original Assignee
Poclain SA
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 Poclain SA filed Critical Poclain SA
Priority to FR7435470A priority Critical patent/FR2259358A1/fr
Publication of FR2259358A1 publication Critical patent/FR2259358A1/fr
Application granted granted Critical
Publication of FR2259358B1 publication Critical patent/FR2259358B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/04—Frequency
    • G01H3/06—Frequency by electric means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
FR7435470A 1974-10-22 1974-10-22 Vibration frequency measuring method - uses microphone for sensing and circuit for discriminating and counting peaks Granted FR2259358A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7435470A FR2259358A1 (en) 1974-10-22 1974-10-22 Vibration frequency measuring method - uses microphone for sensing and circuit for discriminating and counting peaks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7435470A FR2259358A1 (en) 1974-10-22 1974-10-22 Vibration frequency measuring method - uses microphone for sensing and circuit for discriminating and counting peaks

Publications (2)

Publication Number Publication Date
FR2259358A1 true FR2259358A1 (en) 1975-08-22
FR2259358B1 FR2259358B1 (enrdf_load_stackoverflow) 1976-10-22

Family

ID=9144360

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7435470A Granted FR2259358A1 (en) 1974-10-22 1974-10-22 Vibration frequency measuring method - uses microphone for sensing and circuit for discriminating and counting peaks

Country Status (1)

Country Link
FR (1) FR2259358A1 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR2259358B1 (enrdf_load_stackoverflow) 1976-10-22

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Legal Events

Date Code Title Description
ST Notification of lapse