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Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back
Calibration of the hydrostatic sensor of level and density |
V.A. Larionov
Proposed a method for calibration of the hydrostatic level sensor and the fluid density in the reservoir periodically ravage. Sensor level
and density of liquid consists of two pressure sensors disposed in the tank at a certain distance one above the other, and electronic transducer.
The electronic converter is stored (fixed) value of zero offset lower and upper pressure sensors, when the liquid level is below their
levels. Fixed pressure values lower and upper pressure sensors, when the liquid level is slightly above the upper pressure sensor. Fixed
pressure values used in calculating the liquid level and density.
As a result, the proposed method of calibration of the sensor liquid level and density independence provided practical level measurement
result from errors in pressure sensors at the same temperature of the liquid and the air above the liquid. Measurement error of the fluid
density and the level of measurement error that occurs when the difference between the fluid and the air above the liquid is determined
by the accuracy of the sensor pressure at certain points, which leads to the feasibility of using pressure sensors for calibration information
processing methods based on uniform approximation of the inverse transform function sensors.
Keywords: hydrostatic level sensor and the density, pressure sensor, sensor calibration, the inverse transformation function of the sensor,
a uniform approximation.
Contacts: E-mail: larionov1953@mail.ru
Pp. 27-30. |
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