Device for measuring surface speed and liquid level of fluid

A device for measuring a surface speed and a liquid level of a fluid is disclosed. The device includes a RF transceiving module for alternatively transmitting a first FMCW signal and a first CW signal to the fluid, and receiving a second FMCW signal and a second CW signal reflected from the fluid. A...

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Bibliographische Detailangaben
Hauptverfasser:	LIN, HUNGUN, TSAO, PINGANG, CHANG, SHOUNG, CHIU, SHANG-FONG, CHANG, CHI-HO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL METERING BY VOLUME PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	A device for measuring a surface speed and a liquid level of a fluid is disclosed. The device includes a RF transceiving module for alternatively transmitting a first FMCW signal and a first CW signal to the fluid, and receiving a second FMCW signal and a second CW signal reflected from the fluid. A processor is used for calculating the liquid level of the fluid based on a frequency difference between the first FMCW signal and the second FMCW signal, and for calculating the surface speed of the fluid based on a frequency difference between the first CW signal and the second CW signal. A phase locked loop is used for outputting the first FMCW signal and the first CW signal according to a timing control signal. Since the device integrates functions of measuring the surface speed and the liquid level of a fluid, it reduces an occupied room and facilitates a synchronization of data transmission.