Pressure sensor having a helmholtz resonator
This disclosure provides example methods, devices, and systems for a sensor having a Helmholtz resonator. In one embodiment, a system may comprise a sensing element; a header coupled to the sensing element; a housing coupled to the header; an adaptor coupled to the housing; a screen disposed in an opening of the housing, wherein a first cavity is disposed between the screen and the sensing element and a second cavity is disposed between the adaptor and the sensing element, and the screen in combination with the first cavity and the second cavity form a Helmholtz resonator.
1. A system, comprising:
a sensing element;
a header coupled to the sensing element;
a housing coupled to the header;
an adaptor coupled to the housing; and
a screen disposed in an opening of the housing, wherein a first cavity is disposed between the screen and the sensing element and a second cavity is disposed between the adaptor and the sensing element, and the screen in combination with the first cavity and the second cavity form a Helmholtz resonator.
2. The system of claim 1 , wherein a first gap between the adapter and the sensing element is less than 0.015 inches.
3. The system of claim 1 , wherein a first gap between the adapter and the sensing element is in the range of 0.001 inches to 0.015 inches.
4. The system of claim 1 , wherein the adaptor is not connected to the header.
5. The system of claim 1 , wherein a second gap between the adapter and the header is less than 0.040 inches.
6. The system of claim 1 , wherein a second gap between the adapter and the header is in the range of 0.005 inches to 0.040 inches.
7. The system of claim 1 , wherein the sensing element is a piezoresistive leadless sensor.
8. The system of claim 1 , wherein the sensing element is used to measure an environmental condition.
9. The system of claim 8 , wherein the environmental condition is pressure.
10. The system of claim 1 , wherein the adapter is disposed around and defines an opening and the sensing element is disposed in the opening.
11. The system of claim 10 , wherein a shape of the opening is about equivalent to a shape of the sensing element.
12. The system of claim 11 , wherein the shape of the opening is square.
13. The system of claim 11 , wherein a size of the opening is about equivalent to a size of the sensing element.
14. The system of claim 1 , wherein the Helmholtz resonator does not reduce a response time of the sensing element.
15. The system of claim 1 , wherein a response time of the sensing element is less than about fifty microseconds.
16. The system of claim 1 , wherein the front surface of the adapter is coupled to a mating surface.
17. The system of claim 1 , wherein a stress applied at a front surface of the adapter is transferred to the housing.
18. The system of claim 1 , wherein the second cavity isolates the sensing element from a stress applied at a front surface of the adapter.
19. The system of claim 1 , wherein a third cavity is disposed between the adaptor and the header.
20. The system of claim 19 , wherein the screen in combination with the first cavity, the second cavity and the third cavity form a Helmholtz resonator.
21. The system of claim 19 , wherein the third cavity isolates the header from a stress applied at a front surface of the adapter.