Sensor assembly for a sensor, sensor, as well as measuring system formed therewith

Patent metadata

Field	Value
Publication number	US-10845222-B2
Application number	US-201615761472-A
Country	US
Kind code	B2
Filing date	Sep 8, 2016
Priority date	Sep 24, 2015
Publication date	Nov 24, 2020
Grant date	Nov 24, 2020

Abstract

A sensor assembly has a deformation body having two oppositely lying surfaces and an outer edge segment as well as a sensor blade extending from the surface to a distal end and having a left side, first lateral surface and a right side, second lateral surface. An overload protection apparatus protects the deformation body against plastic deformation and has a support stirrup led with lateral separation around the sensor blade and a first stop and a second stop located on opposite sides of the sensor blade. The stops are so arranged that an intermediate space formed therebetween receives only a portion of the sensor blade. The deformation body and the sensor blade are excitable to oscillate about a shared static resting position and to be moved in such a manner that the sensor blade executes pendulum-like movements elastically deforming the deformation body.

First claim

The invention claimed is:

1. A sensor assembly for a sensor, which sensor assembly comprises:
a deformation body exhibiting a first surface, an oppositely lying, second surface and an outer edge segment;
a sensor blade extending from said first surface of said deformation body to a distal end, exhibiting a left side, a first lateral surface and a right side, and a second lateral surface; and
an overload protection apparatus extending from said outer edge segment of the deformation body to a distal end and serving for protection of said deformation body against plastic deformation, said overload protection apparatus including a support stirrup led with lateral separation around said sensor blade and said overload protection apparatus including two stops held by said support stirrup for limiting movement of said sensor blade, of which a first stop is located on the left side of said sensor blade, and a second stop is located on the right side of said sensor blade, wherein:
said outer edge segment is adapted to be connected to a seat serving for mounting said deformation body on a wall of a tube in such a manner that said deformation body covers an opening provided in the wall of the tube and/or in such a manner that the first surface of said deformation body faces a lumen of the tube, such that said sensor blade protrudes inwardly into the lumen;
said stops are so dimensioned and arranged that an intermediate space formed therebetween receives only a portion of said sensor blade;
and said deformation body and said sensor blade are adapted to be excited to execute oscillations about a shared static resting position and, in such case, to be moved relative to said overload protection apparatus, in such a manner that the sensor blade executes pendulum-like movements elastically deforming the deformation body, in the case of which the portion of said sensor blade located within the intermediate space is moved alternately to the left, namely in the direction toward said first stop, and to the right, namely in the direction toward said second stop.

2. The sensor assembly as claimed in claim 1 , wherein:
said overload protection apparatus includes a connecting element on one end facing said edge segment of said deformation body.

3. The sensor assembly as claimed in claim 2 , wherein:
said connecting element as well as said support stirrup are integral components of one and the same monolithic, formed part.

4. The sensor assembly as claimed in claim 2 , wherein:
said support stirrup and connecting element are connected together.

5. The sensor assembly as claimed in claim 2 , wherein:
a connecting element of said overload protection apparatus and said outer edge segment of said deformation body are connected together.

6. The sensor assembly as claimed in claim 1 , wherein:
said deformation body, said sensor blade and said overload protection apparatus are so dimensioned and arranged that, in the case of said sensor blade located together with said deformation body in a shared static resting position, said sensor blade contacts neither said support stirrup nor either of said stops.

7. The sensor assembly as claimed in claim 1 , wherein:
said deformation body, said sensor blade and said overload protection apparatus are so dimensioned and arranged that, in the case of said sensor blade together with said deformation body located in a shared static resting position, gaps are formed between said sensor blade and each of said two stops.

8. The sensor assembly as claimed in claim 1 , wherein:
said deformation body, said sensor blade and said overload protection apparatus are so dimensioned and arranged that, in the case of said sensor blade together with said deformation body located in a shared static resting position, a gap is formed between said sensor blade and said support stirrup.

9. The sensor assembly as claimed in claim 1 , wherein:
said deformation body, said sensor blade and said overload protection apparatus are so dimensioned and arranged that, in the case of said sensor blade together with said deformation body located in a shared first end position differing from the shared static resting position, said sensor blade contacts said first stop.

10. The sensor assembly as claimed in claim 9 , wherein:
said deformation body, said sensor blade and said overload protection apparatus are so dimensioned and arranged that, in the case of said sensor blade together with said deformation body located in a shared second end position differing from the shared static resting position, as well as also from the shared first end position, the sensor blade contacts said second stop.

11. The sensor assembly as claimed in claim 10 , wherein:
said deformation body, said sensor blade and said overload protection apparatus are so dimensioned and arranged that both a deformation of said deformation body corresponding to the first end position as well as also a deformation of said deformation body corresponding to the second end position are elastic.

12. The sensor assembly as claimed in claim 1 , wherein:
said sensor blade has a projection; and
said deformation body, said sensor blade and said overload protection apparatus are so dimensioned and arranged that said projection protrudes inwardly into the intermediate space formed between said stops.

13. The sensor assembly as claimed in claim 12 , wherein:
said stops are provided by edge segments of a recess in said support stirrup, and said intermediate space is formed by a lumen of the recess surrounded by said edge segments.

14. The sensor assembly as claimed in claim 1 , wherein:
said deformation body and said overload protection apparatus are connected together by material bonding; and/or
said deformation body and said sensor blade are connected together by material bonding.

15. The sensor assembly as claimed in claim 1 , wherein:
said overload protection apparatus is composed at least partially; and/or
said deformation body and said overload protection apparatus are composed of the same material; and/or
said deformation body and said overload protection apparatus are components of one and the same, monolithic, formed part.

16. The sensor assembly as claimed in claim 1 , wherein:
said support stirrup is led at least partially on a left side of said sensor blade; and/or
said support stirrup is led at least partially on a right side of said sensor blade; and/or
said support stirrup is led at least partially on a front side of said sensor blade; and/or
said support stirrup is led at least partially on a rear side of said sensor blade; and/or
said overload protection apparatus is formed by means of a single, monolithic, formed part; and/or
said first stop, said second stop as well as said support stirrup are integral components of one and the same monolithic, formed part; and/or
said stops are at least partially formed by edge segments of a recess provided in said support stirrup; and/or
said intermediate space is at least partially formed by a lumen of a recess provided in said support stirrup.

17. The sensor assembly as claimed in claim 1 , wherein:
said outer edge segment is adapted to be connected to the seat by material bonding and/or hermetically sealed; and/or
at least one sealing surface is embodied in said outer edge segment.

18. The sensor assembly as claimed in claim 1 , wherein:
said deformation body is composed at least partially of a metal especially a stainless steel, or a nickel based alloy; and/or
said sensor blade is composed at least partially of a metal; an

Assignees

• Flowtec Ag

Inventors

• Lais Christian
• Strub Andreas
• Wiederkehr Dominique

Classifications

• G01F1/3266

  by sensing mechanical vibrations · CPC title

• G01F15/10

  Preventing damage by freezing or excess pressure or insufficient pressure · CPC title

• G01F1/3209 Primary

  using Karman vortices · CPC title

• G01F1/3263

  Physics · mapped topic