Claims
- 1. A blackbody enclosure comprising:
a body having an interior and an exterior, and an aperture through which radiation can escape from the interior, the body having a total interior surface area defined by a first surface area and a second surface area, the first surface area having a first emissivity, the second surface area having a second emissivity which is higher than said first emissivity, and wherein no radiation which emanates from the first surface area can directly escape through the aperture without first reflecting off of the second surface area.
- 2. The blackbody enclosure of claim 1, wherein the first surface has a substantially flat profile.
- 3. The blackbody enclosure of claim 1, wherein the second surface has a first cylindrical profile and a second conical profile and the first and second profiles share a common axis of rotation.
- 4. The blackbody cavity of claim 1, further comprising a temperature sensor thermally coupled to the body.
- 5. The blackbody enclosure of claim 1, wherein the first surface is polished and coated with gold.
- 6. A blackbody enclosure comprising:
a body having an interior and an exterior, and an aperture through which radiation can escape from the interior, the body having a total interior surface area defined by a first surface area and a second surface area, the first surface area having a first emissivity, the second surface area having a second emissivity which is higher than said first emissivity, wherein the first surface area is shaped and configured relative to the aperture such that no portion thereof is within the field of view of a probe inserted into the aperture.
- 7. The blackbody enclosure of claim 6, wherein the first surface has a substantially flat profile.
- 8. The blackbody enclosure of claim 6, wherein the second surface has a first cylindrical profile and a second conical profile and the first and second profiles share a common axis of rotation.
- 9. The blackbody cavity of claim 6, further comprising a temperature sensor thermally coupled to the body.
- 10. The blackbody enclosure of claim 6, wherein the first surface is polished and coated with gold.
- 11. A blackbody calibration system comprising:
a body having an interior and an exterior, and an aperture through which radiation can escape from the interior, the body having a total interior surface area defined by a first surface area and a second surface area, the first surface area having a first emissivity, the second surface area having a second emissivity which is higher than said first emissivity, wherein no radiation which emanates from the first surface area can directly escape through the aperture without first reflecting off of the second surface area, and a tank containing a fluid in which the body is immersed for providing a substantially uniform constant temperature of the body.
- 12. The blackbody calibration system of claim 11, wherein the first surface has a substantially flat profile.
- 13. The blackbody calibration system of claim 11, wherein the second surface has a first cylindrical profile and a second conical profile and the first and second profiles share a common axis of rotation.
- 14. The blackbody calibration system of claim 11, further comprising a temperature sensor thermally coupled to the body.
- 15. The blackbody calibration system of claim 11, wherein the first surface is polished and coated with gold.
- 16. The blackbody calibration system according to claim 11, further comprising:
a temperature control element for adding heat to or removing heat from the fluid; a temperature sensor for monitoring the fluid; and an agitator for stirring the fluid; and whereby a substantially uniform constant temperature of the fluid is maintained.
- 17. The blackbody calibration system according to claim 16, further comprising a control system connected to each of the temperature control element and the temperature sensor for automatically maintaining a substantially uniform constant temperature of the fluid.
- 18. A blackbody calibration system comprising:
a body having an interior and an exterior, and an aperture through which radiation can escape from the interior, the body having a total interior surface area defined by a first surface area and a second surface area, the first surface area having a first emissivity, the second surface area having a second emissivity which is higher than said first emissivity, wherein the first surface area is shaped and configured relative to the aperture such that no portion thereof is within the field of view of a probe inserted into the aperture, and a tank containing a fluid in which the body is immersed for providing a substantially uniform constant temperature of the body.
- 19. The blackbody calibration system of claim 18, wherein the first surface has a substantially flat profile.
- 20. The blackbody calibration system of claim 18, wherein the second surface has a first cylindrical profile and a second conical profile and the first and second profiles share a common axis of rotation.
- 21. The blackbody calibration system of claim 18, further comprising a temperature sensor thermally coupled to the body.
- 22. The blackbody calibration system of claim 18, wherein the first surface is polished and coated with gold.
- 23. The blackbody calibration system according to claim 18, further comprising:
a temperature control element for adding heat to or removing heat from the fluid; a temperature sensor for monitoring the fluid; and an agitator for stirring the fluid; and whereby a substantially uniform constant temperature of the fluid is maintained.
- 24. The blackbody calibration system according to claim 23, further comprising a control system connected to each of the temperature control element and the temperature sensor for automatically maintaining a substantially uniform constant temperature of the fluid.
- 25. A blackbody calibration system comprising:
a body having an interior and an exterior, and an aperture through which radiation can escape from the interior, the body having a total interior surface area defined by a first surface area and a second surface area, the first surface area having a first emissivity, the second surface area having a second emissivity which is higher than said first emissivity, wherein no radiation which emanates from the first surface area can directly escape through the aperture without first reflecting off of the second surface area, and a temperature control device for adding heat to or removing heat from the body.
- 26. A blackbody calibration system comprising:
a body having an interior and an exterior, and an aperture through which radiation can escape from the interior, the body having a total interior surface area defined by a first surface area and a second surface area, the first surface area having a first emissivity, the second surface area having a second emissivity which is higher than said first emissivity, wherein the first surface area is shaped and configured relative to the aperture such that no portion thereof is within the field of view of a probe inserted into the aperture, and a temperature control device for adding heat to or removing heat from the body.
Parent Case Info
[0001] This application is a continuation of application Ser. No. 09/432,861 filed on Nov. 2, 1999 (pending), the disclosure of which is hereby fully incorporated by reference herein.
Continuations (1)
|
Number |
Date |
Country |
Parent |
09432861 |
Nov 1999 |
US |
Child |
09982594 |
Oct 2001 |
US |