BE538057A - - Google Patents

Info

Publication number
BE538057A
BE538057A BE538057DA BE538057A BE 538057 A BE538057 A BE 538057A BE 538057D A BE538057D A BE 538057DA BE 538057 A BE538057 A BE 538057A
Authority
BE
Belgium
Prior art keywords
reference signal
frequency
ultrasonic
electronic device
resonant circuit
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE538057A publication Critical patent/BE538057A/fr

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B17/00Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
    • G01B17/02Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
BE538057D BE538057A (show.php)

Publications (1)

Publication Number Publication Date
BE538057A true BE538057A (show.php)

Family

ID=168222

Family Applications (1)

Application Number Title Priority Date Filing Date
BE538057D BE538057A (show.php)

Country Status (1)

Country Link
BE (1) BE538057A (show.php)

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