SU147771A1 - Ultrasonic device for measuring the wall thickness of products - Google Patents
Ultrasonic device for measuring the wall thickness of productsInfo
- Publication number
- SU147771A1 SU147771A1 SU686022A SU686022A SU147771A1 SU 147771 A1 SU147771 A1 SU 147771A1 SU 686022 A SU686022 A SU 686022A SU 686022 A SU686022 A SU 686022A SU 147771 A1 SU147771 A1 SU 147771A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- products
- product
- measuring
- thickness
- wall thickness
- Prior art date
Links
Landscapes
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Description
Известны способы измерени толщины труб, листов и других изделий с помощью ультразвуковых колебаний.Methods are known for measuring the thickness of pipes, sheets and other products using ultrasonic vibrations.
Отличительна особенность описываемого способа состоит в том, что толщину издели определ ют по частоте ультразвуковых колебаний , направл емых под посто нным углом к изделию, и по резкому возрастанию принимаемого срггиала, вследствие возникновени в изделии ВОЛН Лэмба или Л ва, суд т о толщине этих изделий. Такой способ обеспечивает непрерывное измерение толщины издели .A distinctive feature of the described method is that the thickness of the product is determined by the frequency of ultrasonic vibrations directed at a constant angle to the product, and by a sharp increase in the received srggal, due to the appearance of Lamb or LMA waves in the product, the thickness of these products . This method provides continuous measurement of the thickness of the product.
На чертеже схематически изображен ультразвуковой прибор дл осуществлени описываемого способа.The drawing shows schematically an ultrasonic device for carrying out the described method.
Прибор включает в себ модул тор / частоты ультразвуковых волн, взаимодействующий с индикатором 2, а также через генератор 5- с излучателем 4. Волны, возникающие в измер емом изделии, поступают в приемник 5, например пьезоэлектрического типа, усиливаютс усилителем 6 и фиксируютс индикатором.The device includes a modulator / frequency of ultrasonic waves, which interacts with the indicator 2, and also through the generator 5 with the radiator 4. The waves generated in the measured product enter the receiver 5, for example of the piezoelectric type, are amplified by the amplifier 6 and fixed by the indicator.
При посто нном угле падени ультразвуковых волн и модул ции частоты ультразвуковых колебаний иа определенных частотах в излчелии возникают волны Лэмба или Л ва различных пор дков. По замеренной частоте возникновени волн и резкому возрастанию принимаемого сигнала определ ют толщину издели . Модул тор частоты колебаний генератора и приемник-усилитель подают сигналы на индикатор, позвол ющий выделить частоту, на которой возбудились волны Лэмба или Л ва, и определить толщину издели . Измерение можно производить при посто нной частоте колебаний и переменном угле а падени ультразвуковых волн. При этом толщину издели определ ют по значению углов, при которых возбуждаютс свободные волны.With a constant angle of incidence of ultrasonic waves and modulation of the frequency of ultrasonic vibrations at certain frequencies, Lamb or Lwa waves of various orders appear in the waveform. The thickness of the product is determined from the measured wave frequency and the sharp increase in the received signal. The oscillator frequency oscillator and the receiver-amplifier send signals to the indicator, which allows you to select the frequency at which the Lamb or Lwa waves are excited, and determine the thickness of the product. Measurement can be made at a constant oscillation frequency and a variable angle of incidence of ultrasonic waves. The thickness of the product is then determined from the angle at which free waves are excited.
№ 147771№ 147771
Предмет изобретени Subject invention
Способ измерени толщины труб, листов и других изделий с иомощью ультразвуковых колебаний, отличающийс тем, что, с целью непрерывного измерени толщины издели , ее определ ют но частоте ультразвуковых колебаний, направл емых под посто нным углом к изделию, и ПО резкому возрастанию принимаемого сигнала, вследствие возникновени в изделии волн Лэмба или Л ва. суд т о толщине издели .A method for measuring the thickness of pipes, sheets and other products with the help of ultrasonic vibrations, characterized in that, in order to continuously measure the thickness of the product, it is determined by the frequency of ultrasonic vibrations directed at a constant angle to the product, and by a sharp increase in the received signal, due to the appearance of Lamb or L wa waves in the product. judge the thickness of the product.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU686022A SU147771A1 (en) | 1960-11-21 | 1960-11-21 | Ultrasonic device for measuring the wall thickness of products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU686022A SU147771A1 (en) | 1960-11-21 | 1960-11-21 | Ultrasonic device for measuring the wall thickness of products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU147771A1 true SU147771A1 (en) | 1961-11-30 |
Family
ID=48303094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU686022A SU147771A1 (en) | 1960-11-21 | 1960-11-21 | Ultrasonic device for measuring the wall thickness of products |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU147771A1 (en) |
-
1960
- 1960-11-21 SU SU686022A patent/SU147771A1/en active
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