RU23498U1 - ULTRASONIC DEVICE FOR MEASURING A LIQUID LEVEL IN A RESERVOIR - Google Patents
ULTRASONIC DEVICE FOR MEASURING A LIQUID LEVEL IN A RESERVOIR Download PDFInfo
- Publication number
- RU23498U1 RU23498U1 RU2001125595/20U RU2001125595U RU23498U1 RU 23498 U1 RU23498 U1 RU 23498U1 RU 2001125595/20 U RU2001125595/20 U RU 2001125595/20U RU 2001125595 U RU2001125595 U RU 2001125595U RU 23498 U1 RU23498 U1 RU 23498U1
- Authority
- RU
- Russia
- Prior art keywords
- measuring
- liquid level
- reservoir
- ultrasonic device
- tank
- Prior art date
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Description
н Ј(1)n Ј (1)
гут gut
где TI - время прохождения сигнала первого электроакустического преобразователя до поверхности жидкости;where TI is the transit time of the signal of the first electro-acoustic transducer to the surface of the liquid;
Т2 - время прохождения сигнала второго электроакустического преобразователя до противоположной стенки резервуара.T2 is the transit time of the signal of the second electro-acoustic transducer to the opposite wall of the tank.
Известное ультразвуковое устройство для измерения уровня имеет ограниченную область применения и малую точность.Known ultrasonic device for level measurement has a limited scope and low accuracy.
Эти недостатки объясняются следующим образом.These disadvantages are explained as follows.
Во-первых, известное устройство применимо только для тех резервуаров, на боковую стенку которых возможна установка второго электроакустического датчика. Кроме того, с уменьшением мерной базы L увеличивается погрешность измерения уровня жидкости Н. К тому же, при изменении температуры жидкости, высоты уровня налива Н, ветровой нагрузки, а также за счет деформации резервуара происходит отклонение истинного значения мерной базы 1ИСТ. от значения L, что приводит к увеличению погрешности измерений.Firstly, the known device is applicable only to those tanks on the side wall of which the installation of a second electro-acoustic sensor is possible. In addition, with a decrease in the measuring base L, the error in measuring the liquid level N increases. In addition, when the liquid temperature, the height of the filling level N, the wind load changes, and also due to the deformation of the tank, the true value of the 1ST measurement base is deviated. from the value of L, which leads to an increase in measurement error.
По технической сущности наиболее близким к предлагаемому устройству является устройство для измерения уровня жидкости в резервуарах 2. Это устройство содержит электроакустический преобразователь, размещенный внутри резервуара в газовой среде, заполняющей резервуар над жидкостью. Электроакустический преобразователь подключен к первому входу электронного прибора приемепередачи и обработки информации. Устройство также содержит температурный датчик, размещенный в газовой среде, подключенный ко второму входу электронного прибора приемо-передачи и обработки информации. При этом уровень жидкости в резервуаре Н определяется по формулеThe technical essence of the closest to the proposed device is a device for measuring the level of liquid in tanks 2. This device contains an electro-acoustic transducer located inside the tank in a gaseous medium filling the tank above the liquid. The electro-acoustic transducer is connected to the first input of an electronic device for transmitting and processing information. The device also contains a temperature sensor located in a gaseous environment, connected to the second input of an electronic device for receiving and transmitting and processing information. In this case, the liquid level in the reservoir N is determined by the formula
н. т;-cff)n t; -cff)
(2)(2)
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2001125595/20U RU23498U1 (en) | 2001-09-24 | 2001-09-24 | ULTRASONIC DEVICE FOR MEASURING A LIQUID LEVEL IN A RESERVOIR |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2001125595/20U RU23498U1 (en) | 2001-09-24 | 2001-09-24 | ULTRASONIC DEVICE FOR MEASURING A LIQUID LEVEL IN A RESERVOIR |
Publications (1)
Publication Number | Publication Date |
---|---|
RU23498U1 true RU23498U1 (en) | 2002-06-20 |
Family
ID=37773634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2001125595/20U RU23498U1 (en) | 2001-09-24 | 2001-09-24 | ULTRASONIC DEVICE FOR MEASURING A LIQUID LEVEL IN A RESERVOIR |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU23498U1 (en) |
-
2001
- 2001-09-24 RU RU2001125595/20U patent/RU23498U1/en not_active IP Right Cessation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ND1K | Extending utility model patent duration | ||
MM1K | Utility model has become invalid (non-payment of fees) |
Effective date: 20090925 |