Measuring arrangement having a support element and a sensor

• US 10,052,627 B2
• Filed: 09/10/2014
• Issued: 08/21/2018
• Est. Priority Date: 10/18/2013
• Status: Active Grant

• Current Assignee: Endress+Hauser Flowtec AG (Endress+Hauser AG)
• Original Assignee: Endress+Hauser Flowtec AG (Endress+Hauser AG)
• Inventors: Huber, Christof, Feth, Hagen, Steinhoff, Frank, Reinecke, Holger
• Primary Examiner(s): Raevis, Robert R
• Application Number:
  US15/029,154
• Publication Number:
  US 20160256867A1
• Time in Patent Office: 1,441 Days
• Field of Search: 738658, 73861-86194, 73273, 73700-756, 73863-8665, 374147, 374148, 374208
• CPC Class Codes: B01L 2200/026 Fluid interfacing between devices or objects, e.g. connectors, inlet details
• CPC Class Codes: B01L 2200/0689 Sealing
• CPC Class Codes: B01L 2300/0627 Sensor or part of a sensor is integrated
• CPC Class Codes: B01L 2300/0645 Electrodes
• CPC Class Codes: B01L 2300/0832 cylindrical, tube shaped
• CPC Class Codes: B01L 2300/0887 Laminated structure
• CPC Class Codes: B01L 2300/12 Specific details about materials
• CPC Class Codes: B01L 3/502 with fluid transport, e.g. in multi-compartment structures centrifugal-type cuvettes G01N21/07; analysis by separation into components G01N30/00; automatic analysers G01N35/00
• CPC Class Codes: B01L 3/502715 characterised by interfacing components, e.g. fluidic, electrical, optical or mechanical interfaces
• CPC Class Codes: B01L 3/565 Seals in general F16L
• CPC Class Codes: B01L 9/52 Supports specially adapted for flat sample carriers, e.g. for plates, slides, chips
• CPC Class Codes: G01D 11/30 Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
• CPC Class Codes: G01N 2030/6013 interfaces to detectors

Abstract

A measuring arrangement comprising: a support element having a longitudinal axis, wherein a sensor for ascertaining a process variable of a gaseous or liquid fluid is arranged on the support element; and the sensor, wherein the sensor has a fluid duct, which extends within the sensor. The support element has a fluid duct, and for mechanical connection of the fluid duct with the fluid duct of the sensor a bonding layer, which extends over a portion of a surface of the support element and over a portion of a surface of the sensor. The bonding layer comprises at least one fluorinated polymer. The support element has for connection of the fluid duct of the support element with the fluid duct of the sensor, in each case, at least one connection element, which protrude from the support element perpendicularly to the longitudinal axis and which protrude inwardly into the fluid duct of the sensor. The connection elements are secured at least to a the sensor by means of a bonding layer, and wherein the bonding layer comprises a fluorinated polymer.

Claims

1. A measuring arrangement comprising:

a support element having a longitudinal axis;

a sensor for ascertaining a process variable of a gaseous or liquid fluid arranged on said support element; and

said sensor has a fluid duct, which extends within said sensor, wherein;

said support element has a fluid duct;

said support element has for mechanical connection of said fluid duct of said support element with said fluid duct of said sensor a bonding layer, which extends over a portion of a surface of said support element and over a portion of a surface of said sensor; and

said bonding layer comprises at least one fluorinated polymer.

2. The measuring arrangement as claimed in claim 1, wherein:

said fluorinated polymer is a copolymer having at least one polyfluorinated component.

3. The measuring arrangement as claimed in claim 2, wherein:

said copolymer is composed of chlorotrifluoroethylene and ethylene.

4. The measuring arrangement as claimed in claim 3, wherein:

said copolymer compound is a 1;

1 copolymer of chlorotrifluoroethylene and ethylene.

5. The measuring arrangement as claimed in claim 1, wherein:

said bonding layer contains at least 80 wt-%, of the copolymer.

6. The measuring arrangement as claimed in claim 1, wherein:

said support element has a connection element for transfer of the fluid from said support element into said sensor; and

said connection element has said bonding layer at least in certain regions on its perimeter.

7. The measuring arrangement as claimed in claim 6, wherein:

said support element and/or said connection element are/is composed of metal.

8. The measuring arrangement as claimed in claim 1, wherein:

the thermal coefficient of expansion of the material of said support element amounts to less than 7-times the thermal coefficient of expansion of the material of said sensor.

9. The measuring arrangement as claimed in claim 1, wherein:

between said sensor and said support element at least one other material bonded connection is arranged, which is embodied by means of the fluorinated polymer.

10. The measuring arrangement as claimed in claim 1, wherein:

said fluid duct of said support element or of said sensor is lined at least in certain regions with the thermoplastic polymer.

11. The measuring arrangement as claimed in claim 1, wherein:

said bonding layer is constructed of at least two plies.

12. The measuring arrangement as claimed in claim 11, wherein:

said at least two plies have different properties.

13. The measuring arrangement as claimed in claim 1, wherein a mechanical bonding layer has a fluid conducting connection between said fluid duct of said sensor and said fluid duct of said support element.

14. The measuring arrangement as claimed in claim 1, wherein:

the thermal coefficient of expansion of the material of said support element amounts to less than 5-times the thermal coefficient of expansion of the material of said sensor.

15. A measuring arrangement comprising:

a support element having a longitudinal axis;

a sensor for ascertaining a process variable of a gaseous or liquid fluid arranged on said support element; and

said sensor has a fluid duct, which extends within said sensor, wherein;

said support element has a fluid duct,

said support element has for connection of the fluid duct of said support element with the fluid duct of said sensor, at least one connection element, which protrude from said support element perpendicularly to the longitudinal axis and which protrude inwardly into the fluid duct of said sensor; and

said connection element is secured at least to said sensor by means of a bonding layer; and

said bonding layer comprises a fluorinated polymer.

16. The measuring arrangement as claimed in claim 15, wherein:

said at least one connection element is formed from said support element by means of a forming method.

17. The measuring arrangement as claimed in claim 15, wherein:

said at least one connection element is embodied as a tubular component, which is arranged in said fluid duct of said support element.

18. The measuring arrangement as claimed in claim 15, wherein:

said connection element is lined with the copolymer compound.

19. The measuring arrangement as claimed in claim 15, wherein:

said fluorinated polymer is a copolymer having at least one polyfluorinated component.

20. The measuring arrangement as claimed in claim 19, wherein:

said copolymer is composed of chlorotrifluoroethylene and ethylene.

21. The measuring arrangement as claimed in claim 20, wherein:

said copolymer compound is a 1;

1 copolymer of chlorotrifluoroethylene and ethylene.