Filling level radar with variable transmitting power
AssigneeVEGA Grieshaber KG
InventorsJosef Fehrenbach, Daniel Schultheiss, Christoph Mueller, Bernhard Corbe
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Abstract
A level measuring instrument has a variable transmitting power for measuring a filling level in a tank. The level measuring instrument includes a generator unit selectively generating different transmitting powers. The generator unit is controlled so that the transmitting power is respectively adapted to the corresponding environmental conditions. For this purpose, the generator unit has for instance two different oscillators, which are driven selectively.
Claims17
A level measuring instrument with a variable transmitting power for measuring a filling level of a medium stored inside a tank, the level measuring instrument comprising:
- a generator unit generating a transmit signal;
- and
- a controller controlling the generator unit;
- wherein the generator unit is configured for generating different transmitting powers of the transmit signal;
- wherein the generator unit comprises:
- a first oscillator for generating a first oscillator signal;
- and
- a second oscillator for generating a second oscillator signal;
- wherein the controller is configured for selectively driving one of the first oscillator and the second oscillator.
A method for measuring a filling level of a medium stored inside a tank, the method comprising the steps of:
- selectively driving one of a first oscillator and a second oscillator of a generator unit thereby selectively generating a first oscillator signal by the first oscillator and a second oscillator signal by the second oscillator;
- controlling the generator unit for selectively generating a first transmitting power of one of a transmit signal and a second transmitting power of the transmit signal;
- and
- generating the transmit signal which selectively corresponds to one of the first transmitting power and the second transmitting power.
Dependencies are inferred from the claim text.