RU2007139223A - PIEZOELECTRIC SIGNAL LEVEL SENSOR - Google Patents
PIEZOELECTRIC SIGNAL LEVEL SENSOR Download PDFInfo
- Publication number
- RU2007139223A RU2007139223A RU2007139223/28A RU2007139223A RU2007139223A RU 2007139223 A RU2007139223 A RU 2007139223A RU 2007139223/28 A RU2007139223/28 A RU 2007139223/28A RU 2007139223 A RU2007139223 A RU 2007139223A RU 2007139223 A RU2007139223 A RU 2007139223A
- Authority
- RU
- Russia
- Prior art keywords
- glass
- piezoelectric transducers
- temperature
- piezoelectric
- landing
- Prior art date
Links
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- Measuring Fluid Pressure (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
1. Датчик пьезоэлектрического сигнализатора уровня, содержащий металлический цилиндрический стакан и один или два пьезопреобразователя, выполненных в виде идентичных по размерам полых цилиндров, установленных внутри стакана, коаксиально его стенке, с возможностью контакта со стаканом по внешним поверхностям, отличающийся тем, что пьезопреобразователи установлены в стакане посредством посадки с гарантированным натягом, причем внутренний диаметр стакана удовлетворяет условию обеспечения минимального удельного давления стакана на пьезопреобразователи при максимальной рабочей температуре. ! 2. Датчик по п.1, отличающийся тем, что посадку с гарантированным натягом осуществляют путем нагрева стакана до температуры, при которой пьезопреобразователи свободно входят в стакан, с последующим охлаждением стакана до температуры окружающей среды, причем температура нагрева пьезопреобразователей от стакана в процессе установки не должна превышать температуру точки Кюри для пьезокерамики, из которой изготовлены пьезопреобразователи.1. The sensor of the piezoelectric level switch, containing a metal cylindrical glass and one or two piezoelectric transducers made in the form of identical sized hollow cylinders installed inside the glass, coaxial to its wall, with the possibility of contact with the glass on external surfaces, characterized in that the piezoelectric transducers are installed in glass by landing with a guaranteed interference fit, and the inner diameter of the glass meets the condition of ensuring a minimum specific pressure of the glass on pi Converters at maximum operating temperature. ! 2. The sensor according to claim 1, characterized in that the landing with a guaranteed interference fit is carried out by heating the glass to a temperature at which the piezoelectric transducers freely enter the glass, followed by cooling the glass to ambient temperature, and the temperature of heating the piezoelectric transducers from the glass during installation is not must exceed the temperature of the Curie point for piezoceramics from which the piezoelectric transducers are made.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2007139223/28A RU2365879C2 (en) | 2007-10-22 | 2007-10-22 | Piezoelectric level indicator transmitter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2007139223/28A RU2365879C2 (en) | 2007-10-22 | 2007-10-22 | Piezoelectric level indicator transmitter |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2007139223A true RU2007139223A (en) | 2009-04-27 |
RU2365879C2 RU2365879C2 (en) | 2009-08-27 |
Family
ID=41018575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2007139223/28A RU2365879C2 (en) | 2007-10-22 | 2007-10-22 | Piezoelectric level indicator transmitter |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2365879C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109764927A (en) * | 2019-03-14 | 2019-05-17 | 长沙学院 | Float-type intelligence solution deep measuring device and measuring method |
-
2007
- 2007-10-22 RU RU2007139223/28A patent/RU2365879C2/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109764927A (en) * | 2019-03-14 | 2019-05-17 | 长沙学院 | Float-type intelligence solution deep measuring device and measuring method |
CN109764927B (en) * | 2019-03-14 | 2023-12-19 | 长沙学院 | Float type intelligent solution depth measuring device and measuring method |
Also Published As
Publication number | Publication date |
---|---|
RU2365879C2 (en) | 2009-08-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20091023 |