METHOD FOR DETERMINING AND/OR MONITORING AT LEAST ONE PHYSICAL, PROCESS VARIABLE
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Accused Products
Abstract
A method for determining and/or monitoring at least one physical, process variable of a medium with an oscillatable unit, wherein a transmitting/receiving unit excites the oscillatable unit by means of transmission signals to execute oscillations. The oscillations of the oscillatable unit are received in the form of received signals, and the process variable is determined and/or monitored based on the frequency and/or the amplitude of the received signal and/or phase shift between the transmission and the received signals. The time behavior of the amplitude of the received signal is examined and evaluated as a function of a time variation of the exciting of the oscillatable unit, and is determined therefrom whether accretion has formed on the oscillatable unit.
12 Citations
30 Claims
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1-15. -15. (canceled)
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16. A method for determining and/or monitoring at least one physical, process variable of a medium with an oscillatable unit, comprising the steps of:
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exciting an oscillatable unit to execute oscillations with a transmitting/receiving unit by means of transmission signals, wherein the oscillations of the oscillatable unit are received in the form of received signals; determining the process variable and/or monitored based on the frequency and/or the amplitude of the received signal and/or the phase shift between the transmission signal and the received signal; examining the time behavior of the amplitude of the received signal and evaluated as a function of a time variation of the exciting of the oscillatable unit; and determining therefrom whether accretion has formed on the oscillatable unit. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification