Measuring arrangement for determining a parameter of a fluid medium flowing through a fluid flow channel and fluid flow channel having such a measuring arrangement
A measuring arrangement for determining at least one parameter of a fluid medium flowing through a fluid flow duct. The measuring arrangement includes a probe device designed to be arranged in the flowing medium as a hollow body having an incident flow side closing the cavity of the hollow body, an open discharge flow side, an outer contour, which generates a flow separation on the discharge flow side, for generating a backflow, and a partition wall dividing the cavity into a fluid inflow chamber and a fluid outflow chamber, wherein the fluid inflow chamber includes an inlet opening and the fluid outflow chamber includes an outlet opening.
1. A measuring arrangement for determining at least one parameter of a fluid medium flowing through a fluid flow duct, comprising:
a probe device designed to be arranged in the flowing medium as a pot-shaped hollow body including
a circumferential wall surrounding a cavity,
an incident flow side closing the cavity of the hollow body, wherein the incident flow side forms a closed base of the pot-shaped hollow body,
an open discharge flow side,
an outer contour, which generates a flow separation on the discharge flow side for generating a backflow, and
a partition wall dividing the cavity into a fluid inflow chamber and a fluid outflow chamber, wherein the fluid inflow chamber comprises an inlet opening disposed through the circumferential wall and the fluid outflow chamber comprises an outlet opening disposed through the circumferential wall, and
a sensor arrangement which is fluidically connected via a fluid supply duct to the inlet opening and via a fluid exhaust duct to the outlet opening to create a measuring duct through which the backflow flows.
2. The measuring arrangement as claimed in claim 1 , in which the hollow body is configured to create high flow resistance to the fluid medium.
3. The measuring arrangement as claimed in claim 2 , in which the hollow body is formed as a blunt hollow body.
4. The measuring arrangement as claimed in claim 2 , in which the hollow body is designed as pot-shaped having a cylindrical circumferential wall and a pot base forming the incident flow side.
5. The measuring arrangement as claimed in claim 2 , in which the sensor arrangement is formed having a sensor measuring the air quality of air as the fluid medium.
6. The measuring arrangement as claimed in claim 1 , in which the hollow body is configured to create high pressure resistance to the fluid medium.
7. The measuring arrangement as claimed in claim 6 , in which the hollow body is formed as a blunt hollow body.
8. The measuring arrangement as claimed in claim 6 , in which the hollow body is designed as pot-shaped having a cylindrical circumferential wall and a pot base forming the incident flow side.
9. The measuring arrangement as claimed in claim 6 , in which the sensor arrangement is formed having a sensor measuring the air quality of air as the fluid medium.
10. The measuring arrangement as claimed in claim 1 , wherein the discharge flow side of the hollow body forms a discharge flow plane oriented perpendicularly to the flow direction of the flowing fluid medium, and
the discharge flow plane forms, with a circumferential surface of the hollow body extending in the flow direction, an edge resulting in the separation of the flowing medium.
11. The measuring arrangement as claimed in claim 10 , in which the hollow body is formed as a blunt hollow body.
12. The measuring arrangement as claimed in claim 10 , in which the hollow body is designed as pot-shaped having a cylindrical circumferential wall and a pot base forming the incident flow side.
13. The measuring arrangement as claimed in claim 10 , in which the sensor arrangement is formed having a sensor measuring the air quality of air as the fluid medium.
14. The measuring arrangement as claimed in claim 1 , in which the hollow body is formed as a blunt hollow body.
15. The measuring arrangement as claimed in claim 14 , in which the sensor arrangement is formed having a sensor measuring the air quality of air as the fluid medium.
16. The measuring arrangement as claimed in claim 1 , in which the hollow body is designed as pot-shaped having a cylindrical circumferential wall and a pot base forming the incident flow side.
17. The measuring arrangement as claimed in claim 16 , in which the sensor arrangement is formed having a sensor measuring the air quality of air as the fluid medium.
18. The measuring arrangement as claimed in claim 1 , in which the sensor arrangement is formed having a sensor measuring the air quality of air as the fluid medium.
19. The measuring arrangement as claimed in claim 18 , in which the sensor is formed as a fine dust sensor.
20. A fluid flow duct, in which the fluid flow duct is formed as a fresh air duct of a vehicle climate control system comprising:
a measuring arrangement for determining at least one parameter of a fluid medium flowing through the fluid flow duct, comprising a probe device designed to be arranged in the flowing medium as a pot-shaped hollow body including
a circumferential wall surrounding a cavity,
an incident flow side closing the cavity of the hollow body, wherein the incident flow side forms a closed base of the pot-shaped hollow body,
an open discharge flow side,
an outer contour, which generates a flow separation on the discharge flow side for generating a backflow, and
a partition wall dividing the cavity into a fluid inflow chamber and a fluid outflow chamber, wherein the fluid inflow chamber comprises an inlet opening disposed through the circumferential wall and the fluid outflow chamber comprises an outlet opening disposed through the circumferential wall, and
a sensor arrangement which is fluidically connected via a fluid supply duct to the inlet opening and via a fluid exhaust duct to the outlet opening to create a measuring duct through which the backflow flows.