SU493935A1 - A method for measuring the amplitude-frequency characteristic of a piezo receiver - Google Patents
A method for measuring the amplitude-frequency characteristic of a piezo receiverInfo
- Publication number
- SU493935A1 SU493935A1 SU2044553A SU2044553A SU493935A1 SU 493935 A1 SU493935 A1 SU 493935A1 SU 2044553 A SU2044553 A SU 2044553A SU 2044553 A SU2044553 A SU 2044553A SU 493935 A1 SU493935 A1 SU 493935A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- measuring
- amplitude
- frequency characteristic
- measurement
- piezo receiver
- Prior art date
Links
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
1one
Изобретение относитс к измерительной технике , а именно к снособам измерени параметров пьезоэлектрических преобразователей.The invention relates to a measurement technique, namely, methods for measuring parameters of piezoelectric transducers.
Известен способ измерени амплитудно-частотных характеристик четырехполюсников, включающий генерацию измерительных сигналов с равномерным спектром, прием их испытываемым устройством и измерение зависимости амплитуды сигналов на выходе испытываемого устройства от частоты сигнала. Перестройка частоты измерительных сигналов при таком способе приводит к увеличению времени измерени .There is a method of measuring the amplitude-frequency characteristics of quadrupoles, including the generation of measurement signals with a uniform spectrum, receiving them by a tested device and measuring the dependence of the amplitude of the signals at the output of the tested device on the frequency of the signal. A frequency tuning of the measurement signals with this method leads to an increase in the measurement time.
Цель изобретени - сокращение длительности процесса измерени .The purpose of the invention is to reduce the duration of the measurement process.
Дл этого в качестве измерительного сигнала используют сигнал, создаваемый тепловым движением атомов и молекул твердого тела.For this, the signal generated by the thermal motion of atoms and molecules of a solid is used as a measuring signal.
На чертеже Приведена схема измерений, по сн юща предлагаемый способ измерени .In the drawing, a measurement diagram is provided explaining the proposed measurement method.
На твердом теле 1 установлен пьезоприемник 2, выход которого подключен к электронной аппаратуре 3, измер ющей, например, спектральную плотность шума. Тепловое движение атомов и молекул твердого тела вызывает в последнем акустические сигналы с равномерной спектральной плотностью в измер емом диапазоне частот. Под действием акустического сигнала на выходных зажимах ньезоприемника по вл етс электрический сигнал со спектральной плотностью, соответствующей амплитудно-частотной характеристике пьезоприемника.On the solid body 1 there is a piezo receiver 2, the output of which is connected to the electronic equipment 3, which measures, for example, the spectral noise density. The thermal motion of atoms and molecules of a solid causes, in the latter, acoustic signals with uniform spectral density in the measured frequency range. Under the action of an acoustic signal at the output terminals of a foreign receiver, an electric signal appears with a spectral density corresponding to the amplitude-frequency characteristic of the piezo receiver.
Измерение спектральных составл ющих этого сигнала аппаратурой 3 позвол ет измерить амплитудно-частотную характеристикуMeasurement of the spectral components of this signal with the apparatus 3 allows measuring the amplitude-frequency characteristic
пьезоприемника без перестройки генератора измерительного сигнала, что сокращает длительность процесса измерени .piezo receiver without tuning the measuring signal generator, which reduces the duration of the measurement process.
Предмет изобретени Subject invention
Способ измерени амплитудно-частотной характеристики пьезоприемпика, включающий генерацию измерительных сигналов с равномерным амплитудно-частотным спектром, прием их и измерение зависимости амплитуды измерительного сигнала на выходе пьезоприемника от частоты сигнала, отличающийс тем, что, с целью сокращени длительности процесса измерени , в качестве измерительного сигнала используют сигнал, создаваемый тепловым движением атомов и молекул твердого тела.A method for measuring the amplitude-frequency characteristic of a piezoelectric transducer, including generating measurement signals with a uniform amplitude-frequency spectrum, receiving them and measuring the dependence of the amplitude of the measurement signal at the output of the piezoelectric receiver on the signal frequency, characterized in use the signal generated by the thermal motion of atoms and molecules of a solid.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2044553A SU493935A1 (en) | 1974-07-12 | 1974-07-12 | A method for measuring the amplitude-frequency characteristic of a piezo receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2044553A SU493935A1 (en) | 1974-07-12 | 1974-07-12 | A method for measuring the amplitude-frequency characteristic of a piezo receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU493935A1 true SU493935A1 (en) | 1975-11-28 |
Family
ID=20591169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU2044553A SU493935A1 (en) | 1974-07-12 | 1974-07-12 | A method for measuring the amplitude-frequency characteristic of a piezo receiver |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU493935A1 (en) |
-
1974
- 1974-07-12 SU SU2044553A patent/SU493935A1/en active
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