Fill level switch and sensor element for a fill level switch
First Claim
1. Fill level switch for measuring the fill level of a medium in a container, comprising:
- a sensor element for contacting the medium, the sensor element having a window facing the medium in a mounted position of the fill level switch in the container,a sender for applying an electromagnetic emission signal to the sensor element, andan evaluation unit for detecting a received signal from the sensor element,wherein the sensor element includes at least one cable for guiding the emission signal, the cable being a delay line, at least a part of which is electrically influenceable by the medium via the window.
1 Assignment
0 Petitions
Accused Products
Abstract
A fill level switch (1) for measuring the fill level of a medium in a container (2), having a sensor element (3) for contacting the medium, a sender (4) for applying an electromagnetic emission signal to the sensor element (3) and an evaluation unit (5) for detecting a received signal from the sensor element (3). The sensor element (3) includes at least one cable (6) for guiding the emission signal. To provide a fill level switch, which is based on a sturdy measuring principle and which allows for reliable cleaning, the fill level switch uses a delay line as the cable (6) of the sensor element (3) and the sensor element (3) has a window (7) facing the medium in the mounted position of the fill level switch and at least a part of the cable (6) can be electrically influenced by the medium via the window (7).
-
Citations
24 Claims
-
1. Fill level switch for measuring the fill level of a medium in a container, comprising:
-
a sensor element for contacting the medium, the sensor element having a window facing the medium in a mounted position of the fill level switch in the container, a sender for applying an electromagnetic emission signal to the sensor element, and an evaluation unit for detecting a received signal from the sensor element, wherein the sensor element includes at least one cable for guiding the emission signal, the cable being a delay line, at least a part of which is electrically influenceable by the medium via the window. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
-
-
22. Sensor element for a fill level switch for detecting a medium, comprising:
-
a window for facing the medium in a mounted position of the fill level switch in the container, and at least one cable for guiding an emission signal, the cable being a delay line, at least a part of which is electrically influenceable by the medium via the window. - View Dependent Claims (23, 24)
-
Specification