SU649948A1 - Object small displacement sensor - Google Patents
Object small displacement sensorInfo
- Publication number
- SU649948A1 SU649948A1 SU752199380A SU2199380A SU649948A1 SU 649948 A1 SU649948 A1 SU 649948A1 SU 752199380 A SU752199380 A SU 752199380A SU 2199380 A SU2199380 A SU 2199380A SU 649948 A1 SU649948 A1 SU 649948A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- waveguide
- nozzle
- displacement sensor
- small displacement
- receiver
- Prior art date
Links
Landscapes
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Description
рассто ние б между соплом 7 и объектом 8, а следовательно, измен етс дол потока звуковых колебаний, выход ща наружу и. рассеиваема . При этом измен етс индуктивность колебаний, достигающих приемника 4. Интервал изменени б, в котором рост амплитуды прин того сигнала пропорционален смещению, определ ет рабочий диапазон датчика.the distance b between the nozzle 7 and the object 8, and therefore, the fraction of the flow of sound oscillations that go outside and changes. dissipated. In this case, the inductance of oscillations reaching the receiver 4 is changed. The interval of variation b, in which the amplitude of the received signal is proportional to the offset, determines the operating range of the sensor.
В результате при изменении рассто ни б между соплом 7 и объектом 8 перемещений измен етс интенсивность потока звуковых колебаний, распростран ющихс по U-образному волноводу 1, так как часть потока отводитс через сопло и рассеиваетс во внешней среде. При этом достигаетс больша чувствительность выходного сигнала к изменению температуры окружающей среды, так как смещение интерференционной картины, частично возникающей в колонне волновода до сопла, не вли ет па амплитуду бегущей звуковой волны, достигающей приемника. Кроме того, конструкци устройства оказываетс более простой.As a result, when the distance b between the nozzle 7 and the displacement object 8 changes, the intensity of the flow of sound vibrations propagating through the U-shaped waveguide 1 changes, as part of the flow is diverted through the nozzle and dissipates in the external environment. In this case, a high sensitivity of the output signal to a change in the ambient temperature is achieved, since the offset of the interference pattern, which partially arises in the waveguide column to the nozzle, does not affect the amplitude of the traveling sound wave reaching the receiver. In addition, the design of the device is simpler.
Предлагаемый датчик может быть выполнен длиной до нескольких метров, аThe proposed sensor can be made up to several meters long, and
диаметром в несколько миллиметров, и иметь форму, существенно отличную от стреловидной, что позвол ет измер ть малые перемещени в труднодоступных местах .with a diameter of several millimeters, and have a shape that is significantly different from arrow-shaped, which allows to measure small movements in hard to reach places.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU752199380A SU649948A1 (en) | 1975-12-15 | 1975-12-15 | Object small displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU752199380A SU649948A1 (en) | 1975-12-15 | 1975-12-15 | Object small displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU649948A1 true SU649948A1 (en) | 1979-02-28 |
Family
ID=20640442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU752199380A SU649948A1 (en) | 1975-12-15 | 1975-12-15 | Object small displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU649948A1 (en) |
-
1975
- 1975-12-15 SU SU752199380A patent/SU649948A1/en active
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