Filling level sensor with several thermoelements and method for measuring the filling level
First Claim
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1. A filling level sensor for measuring a filling level of a liquid in a receptacle, the filling level sensor comprising:
- a basic body;
several thermoelements disposed on the basic body; and
a protective layer applied to the thermoelements,wherein the thermoelements extend upwards from a bottom of the receptacle and the thermoelements comprise different heights,wherein the thermoelements are configured as electric generators, andwherein the protective layer finishes flush with a surface of the basic body.
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Abstract
The aim is to achieve a particularly robust and reliable embodiment of a filling level sensor with several thermoelements for measuring the filling level of a liquid in a receptacle. This is achieved in that the thermoelements are arranged in parallel with one another and extend from the bottom upwards. The thermoelements are of different heights so that, depending on the filling level, one part of the thermoelements is flooded and another part is not. This can be used to derive information regarding the filling level.
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Citations
12 Claims
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1. A filling level sensor for measuring a filling level of a liquid in a receptacle, the filling level sensor comprising:
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a basic body; several thermoelements disposed on the basic body; and a protective layer applied to the thermoelements, wherein the thermoelements extend upwards from a bottom of the receptacle and the thermoelements comprise different heights, wherein the thermoelements are configured as electric generators, and wherein the protective layer finishes flush with a surface of the basic body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for measuring the filling level of a liquid in a receptacle with a filling level sensor, the filling level sensor comprising several thermoelements, wherein the thermoelements extend upwards from a bottom of the receptacle and the thermoelements comprise different heights and wherein the thermoelements are configured as electric generators, the method comprising:
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measuring voltages of all of the thermoelements; adding up the voltages of all the thermoelements; and setting a total voltage in correlation to a filling level range. - View Dependent Claims (12)
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Specification