Simplified thermal isolator for temperature sensor

• US 20060203886A1
• Filed: 12/12/2005
• Published: 09/14/2006
• Est. Priority Date: 03/10/2005
• Status: Abandoned Application

• Current Assignee: AAI Corporation (Textron Inc)
• Original Assignee: AAI Corporation (Textron Inc)
• Inventors: Karmazyn, Michael J.
• Application Number:
  US11/298,654
• Publication Number:
  US 20060203886A1
• Time in Patent Office: Days
• US Class Current: 374/208
• CPC Class Codes: G01K 1/20 Compensating for effects of temperature changes other than those to be measured, e.g. changes in ambient temperature

Abstract

A thermal isolator is provided for use with a sensor having a sensing element. The isolator has a main body made of a thermally insulating material. The main body has an outer surface, a sensor receiving passage for receiving the sensor, and at least one venting port fluidly communicating with the sensor receiving passage and the outer surface. The sensor receiving passage is adapted to position the sensor such that the sensing element is unreachable by a linear path from the outer surface through any opening in the main body.

Claims

1. A thermal isolator for use with a sensor having a sensing element, the isolator comprising:

a main body made of a thermally insulating material, the main body having an outer surface;

a sensor receiving passage for receiving the sensor; and

at least one venting port fluidly communicating with the sensor receiving passage and the outer surface,

wherein the sensor receiving passage is adapted to position the sensor such that the sensing element is unreachable by a linear path from the outer surface through any opening in the main body.

2. The thermal isolator of claim 1, wherein the venting port is a cylindrical passage passing completely through the main body.

3. The thermal isolator of claim 2, wherein an axis of the venting port is perpendicular to an axis of the sensor receiving passage.

4. The thermal isolator of claim 1, wherein the sensor is a temperature sensor.

5. The thermal isolator of claim 1, wherein the at least one venting port is a plurality of venting ports.

6. The thermal isolator of claim 5, wherein at least two of the venting ports are cylindrical passages passing completely through the main body.

7. The thermal isolator of claim 6, wherein the at least two venting ports each have an axis, the axes of the at least two venting ports being perpendicular to an axis of the sensor receiving passage.

8. The thermal isolator of claim 7, wherein the main body is spherical.

9. The thermal isolator of claim 7, wherein the main body is a hexagonal prism.

10. The thermal isolator of claim 9, wherein the main body is a right regular hexagonal prism.

11. A thermal isolator for use with a temperature sensor having a sensing element, the isolator comprising:

a main body made of a thermally insulating material, the main body having an outer surface;

a sensor receiving passage for receiving the sensor; and

at least one venting port fluidly communicating with the sensor receiving passage and the outer surface,

wherein the sensor receiving passage is adapted to position the sensor such that the sensing element is not directly viewable from the outer surface through any opening in the main body.

12. The thermal isolator of claim 11, wherein the venting port is a cylindrical passage passing completely through the main body.

13. The thermal isolator of claim 12, wherein an axis of the venting port is perpendicular to an axis of the sensor receiving passage.

14. The thermal isolator of claim 11, wherein the sensor is a temperature sensor.

15. The thermal isolator of claim 11, wherein the at least one venting port is a plurality of venting ports.

16. The thermal isolator of claim 15,.wherein at least two of the venting ports are cylindrical passages passing completely through the main body.

17. The thermal isolator of claim 16, wherein the at least two venting ports each have an axis, the axes of the at least two venting ports being perpendicular to an axis of the sensor receiving passage.

18. The thermal isolator of claim 17, wherein the main body is spherical.

19. The thermal isolator of claim 17, wherein the main body is a hexagonal prism.

20. The thermal isolator of claim 19, wherein the main body is a right regular hexagonal prism.