RO95412B1 - Method and apparatus for determining the resonant frequency and the vibration level - Google Patents

Method and apparatus for determining the resonant frequency and the vibration level

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Publication number
RO95412B1
RO95412B1 RO123543A RO12354386A RO95412B1 RO 95412 B1 RO95412 B1 RO 95412B1 RO 123543 A RO123543 A RO 123543A RO 12354386 A RO12354386 A RO 12354386A RO 95412 B1 RO95412 B1 RO 95412B1
Authority
RO
Romania
Prior art keywords
frequency
transducer
vibration level
detecting
block
Prior art date
Application number
RO123543A
Other languages
Romanian (ro)
Other versions
RO95412A2 (en
Inventor
Nicolae Muntean
Original Assignee
îNTREPRINDEREA "ELECTROTIMIS"
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 îNTREPRINDEREA "ELECTROTIMIS" filed Critical îNTREPRINDEREA "ELECTROTIMIS"
Priority to RO123543A priority Critical patent/RO95412B1/en
Publication of RO95412A2 publication Critical patent/RO95412A2/en
Publication of RO95412B1 publication Critical patent/RO95412B1/en

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  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

Inventia se refera la o metoda si un aparat de detectare a frecventei de rezonanta si a nivelului de vibratie la traductori de ultrasunete piezoelectrici. Metoda consta în detectarea si masurarea curentului electric de miscare, proportional cu amplitudinea de vibratie si sesizarea frecventei la care acesta prezinta un maxim în cazul excitarii transductorului cu un semnal sinusoidal de amplitudine constanta si frecventa reglabila. Aparatul este format dintr-un oscilator sinusoidal comandat de tensiune de un bloc numeric de comanda a frecventei ce se masoara cu un frecventmetru, care excita un traductor piezoelectric cu un amplificator printr-un detector al curentului de miscare prin traductor a carui iesire e conectata la un bloc numeric de memorare si afisare care comanda încarcarea unei memorii conectata la blocul numeric de comanda a frecventei.The invention relates to a method and apparatus for detecting the resonance frequency and the vibration level of piezoelectric ultrasound transducers. The method consists in detecting and measuring the electric current in proportion to the vibration amplitude and sensing the frequency at which it exhibits a maximum when the transducer is excited with a constant and frequency adjustable sinusoidal signal. The device consists of a voltage-controlled oscillator oscillator of a frequency control numeric block that is measured with a frequency meter that excites a piezoelectric transducer with an amplifier through a motion current detector by means of a transducer whose output is connected to a numerical storage and display block commanding the loading of a memory connected to the numerical frequency control block.

RO123543A 1986-05-30 1986-05-30 Method and apparatus for determining the resonant frequency and the vibration level RO95412B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO123543A RO95412B1 (en) 1986-05-30 1986-05-30 Method and apparatus for determining the resonant frequency and the vibration level

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO123543A RO95412B1 (en) 1986-05-30 1986-05-30 Method and apparatus for determining the resonant frequency and the vibration level

Publications (2)

Publication Number Publication Date
RO95412A2 RO95412A2 (en) 1988-09-15
RO95412B1 true RO95412B1 (en) 1988-09-16

Family

ID=20119458

Family Applications (1)

Application Number Title Priority Date Filing Date
RO123543A RO95412B1 (en) 1986-05-30 1986-05-30 Method and apparatus for determining the resonant frequency and the vibration level

Country Status (1)

Country Link
RO (1) RO95412B1 (en)

Also Published As

Publication number Publication date
RO95412A2 (en) 1988-09-15

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