SU437960A1 - Method for measuring the speed of propagation of ultrasound - Google Patents

Method for measuring the speed of propagation of ultrasound

Info

Publication number
SU437960A1
SU437960A1 SU1744266A SU1744266A SU437960A1 SU 437960 A1 SU437960 A1 SU 437960A1 SU 1744266 A SU1744266 A SU 1744266A SU 1744266 A SU1744266 A SU 1744266A SU 437960 A1 SU437960 A1 SU 437960A1
Authority
SU
USSR - Soviet Union
Prior art keywords
ultrasound
propagation
measuring
speed
frequency
Prior art date
Application number
SU1744266A
Other languages
Russian (ru)
Inventor
Иван Александрович Чернобай
Василий Константинович Чепиков
Original Assignee
Белорусский институт механизации сельского хозяйства
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 Белорусский институт механизации сельского хозяйства filed Critical Белорусский институт механизации сельского хозяйства
Priority to SU1744266A priority Critical patent/SU437960A1/en
Application granted granted Critical
Publication of SU437960A1 publication Critical patent/SU437960A1/en

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  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Description

1one

Изобретение относитс  к области акустических измерений и -может быть использовадо дл  определени  скорости ультразвука в жидких , твердых или газообразных средах, что необходимо дл  определени  физико-химических свойств веществ.The invention relates to the field of acoustic measurements and can be used to determine the speed of ultrasound in liquid, solid or gaseous media, which is necessary to determine the physicochemical properties of substances.

Известен способ измерени  скорости распространени  ультразвука, основанный на измерении времени распространени  ультразвукового импульса в исследуемой среде путем настройки генератора на частоту, рав ую обратной величине времени прохождени  акустических колебаний через исследуемую среду.A known method for measuring the speed of ultrasound propagation is based on measuring the time of the ultrasonic pulse propagation in the medium under investigation by tuning the generator to a frequency equal to the reciprocal of the transit time of acoustic oscillations through the medium under study.

Цель изоб ретени  - повышение точности измерени  скорости распространени  ультразвука .The purpose of the invention is to improve the accuracy of measuring the speed of ultrasound propagation.

Это достигаетс  тем, что врем  распространени  в исследуемой среде ультра .адуковых частотно-модулированных синусоидальных колебаний.This is achieved by the fact that the propagation time in the studied medium is ultra-acoustic frequency-modulated sinusoidal oscillations.

Осуществл етс  предлагаемый способ следующим образом.The proposed method is carried out as follows.

В исследуемую среду излучают непрерывные синусоидальные «олебаии  с частотной модул цией синусоидальным напр жением та2Continuous sinusoidal oscillations with frequency modulation by sinusoidal voltage ta2 emit into the studied medium.

кой частоты, что в исследуемой среде укладываетс  целое число пе;риодов частотно-модулированного сигнала. Совмещение периодов частотно-модулированных колебаний с кратноThis is the frequency that the integer number of the periods of the frequency-modulated signal fits into the medium under study. The combination of periods of frequency-modulated oscillations with multiple

отраженными сигналами фиксируют по нулевым биени м при помощи электронного осциллографа .the reflected signals are fixed at zero beats with the help of an electronic oscilloscope.

Малейшее рассогласование -приводит к про влению биений. Скорость ультразвука определ ют по частоте модул ции частотно-модулированных непрерывных синусоидальных колебаний.The slightest disagreement leads to a beating. The ultrasound velocity is determined by the modulation frequency of the frequency-modulated continuous sinusoidal oscillations.

Предмет изобретени Subject invention

1515

Способ измерени  скорости распространени  ультразвука, основанный на измерении распространени  ультразвукового сигнала в исследуемой среде путем настройки генератора на частоту, равную обратной величине времени прохождени  акустических колебаний через исследуемую среду, отличающийс  тем, что, с целью повышени  точности , измер ют врем  распространени  вA method of measuring the speed of ultrasound propagation, based on measuring the propagation of an ultrasonic signal in the medium under investigation by tuning the generator to a frequency equal to the reciprocal of the transit time of acoustic oscillations through the medium under investigation, characterized in that, in order to improve the accuracy,

исследуемой среде ультразвуковых частотномодулированных синусоидальных колебаний.the studied medium ultrasound frequency modulated sinusoidal oscillations.

SU1744266A 1972-02-15 1972-02-15 Method for measuring the speed of propagation of ultrasound SU437960A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1744266A SU437960A1 (en) 1972-02-15 1972-02-15 Method for measuring the speed of propagation of ultrasound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1744266A SU437960A1 (en) 1972-02-15 1972-02-15 Method for measuring the speed of propagation of ultrasound

Publications (1)

Publication Number Publication Date
SU437960A1 true SU437960A1 (en) 1974-07-30

Family

ID=20502071

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1744266A SU437960A1 (en) 1972-02-15 1972-02-15 Method for measuring the speed of propagation of ultrasound

Country Status (1)

Country Link
SU (1) SU437960A1 (en)

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