SU620282A1 - Ultrasonic receiver - Google Patents

Ultrasonic receiver

Info

Publication number
SU620282A1
SU620282A1 SU762340149A SU2340149A SU620282A1 SU 620282 A1 SU620282 A1 SU 620282A1 SU 762340149 A SU762340149 A SU 762340149A SU 2340149 A SU2340149 A SU 2340149A SU 620282 A1 SU620282 A1 SU 620282A1
Authority
SU
USSR - Soviet Union
Prior art keywords
ultrasonic receiver
electrode
electrodes
converter
amplitudes
Prior art date
Application number
SU762340149A
Other languages
Russian (ru)
Inventor
Игорь Валентинович Федющенко
Original Assignee
Fedyushchenko Igor V
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 Fedyushchenko Igor V filed Critical Fedyushchenko Igor V
Priority to SU762340149A priority Critical patent/SU620282A1/en
Application granted granted Critical
Publication of SU620282A1 publication Critical patent/SU620282A1/en

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  • Transducers For Ultrasonic Waves (AREA)

Description

Изобретение слгноситс  к средства автоматики, ИзвеСгаы ультразвуковые устройсгеа дл  приема направленных ультра звуков| колебаний в воздушной среде с пелыо инаикации положени  Контролируемых объектов Jl , Недостатком таких устройств  вл етс  низка  чувствительность и сложность следствие применени  аискового пьезокерамического преобразовател  с двум  сплошными электродами на торцовых поверхност х. Выходное электрическое напр жение такого преобразовател  имеет некоторое усредненное по торцовой поверхности значение, которое сушественно.-меньше величии, соответствующих реальным амплитудам механических колебаний возбужденного преобразовател . Известно также ультразвуковое устройство , содержащее дисковый пьезокерамический преобразователь с концентричес кими электродами на одном торие и спло ным электродом на другом 2j . Однако такое устройство имеет низкую чувствительность . Цель изобретени  - увеличение чувствительности ультразвукового приемника. Зто достигаетс  тем, что концентрические электроды в виде круга и кольаа разделены изолирующим промежутком в минимуме амплитуд колебаний по толшине , ври этом электрод в виде круга соединен с сигнальным входом усилител , а электрод в виде кольца и сплошной электрод ,.j- с шиной питани . На фиг. 1 показан пьезокерамический преобразователь и распределение амплитуд напр жений по поверхности преобразовател ; на фиг. 2 - схема подключе ч ни  преобразовател  к усилителю. Преобразователь Содержит электроды в виде круга 1 и кольца 2, разделенные изолирующим промежутком 3, который расположен в минимуме распределени  : амплитуд, и сплошной электрод 4. Электрод 1 подключен к сигнальному входу усипител  5, а электроды 2 и 4 - к общей шине питани .The invention is connected to automation equipment, I have known ultrasonic devices for receiving directional ultra sounds | oscillations in air from the position of monitored objects Jl. The disadvantage of such devices is the low sensitivity and complexity resulting from the use of a piezoceramic piezoelectric transducer with two solid electrodes on the end surfaces. The output voltage of such a converter has a certain value averaged over the end surface, which is substantially less than the magnitude corresponding to the real amplitudes of the mechanical oscillations of the excited converter. It is also known an ultrasonic device containing a piezoceramic disk transducer with concentric electrodes on one thorium and a flat electrode on the other 2j. However, such a device has a low sensitivity. The purpose of the invention is to increase the sensitivity of the ultrasonic receiver. This is achieved by the fact that the concentric electrodes in the form of a circle and collar are separated by an insulating gap at the minimum of vibration amplitudes in thickness, the electrode in the form of a circle is connected to the signal input of the amplifier, and the electrode in the form of a ring and a solid electrode, .j- with the power rail. FIG. Figure 1 shows a piezoelectric transducer and the distribution of voltage amplitudes over the transducer surface; in fig. 2 - wiring diagram of the converter to the amplifier. Converter Contains electrodes in the form of a circle 1 and a ring 2, separated by an insulating gap 3, which is located at the minimum distribution: amplitudes, and a solid electrode 4. Electrode 1 is connected to the signal input of the amplifier 5, and electrodes 2 and 4 to the common power supply bus.

SU762340149A 1976-03-24 1976-03-24 Ultrasonic receiver SU620282A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU762340149A SU620282A1 (en) 1976-03-24 1976-03-24 Ultrasonic receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU762340149A SU620282A1 (en) 1976-03-24 1976-03-24 Ultrasonic receiver

Publications (1)

Publication Number Publication Date
SU620282A1 true SU620282A1 (en) 1978-08-25

Family

ID=20654268

Family Applications (1)

Application Number Title Priority Date Filing Date
SU762340149A SU620282A1 (en) 1976-03-24 1976-03-24 Ultrasonic receiver

Country Status (1)

Country Link
SU (1) SU620282A1 (en)

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