Fill level measurement device
The present disclosure relates to a fill level measuring device for measuring a fill level of a liquid material in a container, including at least two flexible wire probes that extend into the container, a signal generator, and an end weight for each flexible wire probe. The end-weights are joined together such that they can rotate with respect to each other and/or can move in an axial direction with respect to each other.
1. A fill level measuring device for measuring a fill level of a liquid material in a container, comprising:
at least two flexible wire probes that extend into the container;
a signal generator embodied to generate an electromagnetic measurement signal and to provide the electromagnetic measurement signal to the flexible wire probes, wherein the flexible wire probes are embodied to receive and to guide the electromagnetic measurement signal; and
an end-weight for each flexible wire probe, each end-weight connected to a corresponding flexible wire probe of the least two flexible probes and embodied to apply an axial tensile force to at least a portion of the length of its corresponding flexible wire probe,
wherein the end-weights are fit together such that they can rotate with respect to each other and/or can move in an axial direction with respect to each other, said axial direction being parallel and/or antiparallel to a direction defined by the axial tensile force on the corresponding flexible wire probe.
2. The fill level measuring device according to claim 1 , wherein the end-weights include an electrically conducting material and the end-weights are electrically connected to each other.
3. The fill level measuring device according to claim 1 , wherein the end-weights are electrically isolated from each other.
4. The fill level measuring device according to claim 1 , wherein at least one of the end-weights is composed of a non-conductive material.
5. The fill level measuring device according to claim 1 , wherein a first end-weight includes a hole for receiving a second end-weight, the hole disposed on a side of the first end-weight facing the flexible wire probes and extending into the first end-weight in a direction parallel to the axial tensile force applied by the first end-weight.
6. The fill level measuring device according to claim 5 , wherein the hole has an inner geometrical form that corresponds to an outer geometrical form of the second end-weight such that the first end weight and second end-weight can move with respect to each other in an axial direction while remaining electrically connected to each other.
7. The fill level measuring device according to claim 5 , wherein the hole is a through hole.
8. The fill level measuring device according to claim 6 , wherein the inner geometrical form of the hole is cylindrical and the outer geometrical form of the second end-weight is cylindrical such that the second end-weight can rotate with respect the first end-weight when inserted into the hole while maintaining an electrical connection to the first end-weight.
9. The fill level measuring device according to claim 1 , wherein a first end-weight includes a recess embodied to receive a second end-weight such that when the second end-weight is disposed in the recess, the second end-weight is partially exposed in a radial direction.
10. The fill level measuring device according to claim 1 , wherein a first end-weight includes an extrusion embodied to at least partially enclose a second end-weight.
11. The fill level measuring device according to claim 1 , wherein at least one of the flexible wire probes is disposed in a bore hole provided in a corresponding end-weight and at least one set screw is provided in the corresponding end-weight to secure the flexible wire probe and thereby connect the flexible wire probe to its corresponding end-weight.
12. The fill level measuring device according to claim 1 , wherein at least one of the at least two flexible wire probes is disposed in a bored through hole provided in a corresponding end-weight, the flexible wire probe being prevented from sliding through the corresponding end-weight by a crimp sleeve that is crimped onto the flexible wire probe, thereby connecting the corresponding end-weight to the flexible wire probe.
13. The fill level measuring device according to claim 12 , wherein the bored through hole is disposed parallel to, and in the immediate vicinity of, an axis defining a center of mass of the corresponding end-weight, such that a portion of the flexible wire probe that is positioned within the corresponding end-weight is oriented in said axial direction.