Portable blackbody furnace
US7148450B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2005 |
| Grant date | Dec 12, 2006 |
| Priority date | — |
| Expiry date | Oct 17, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D21/0014
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The present invention discloses a portable blackbody furnace comprising a metallic body, a cylindrical cavity with a tapered end in the metallic body, a shielding plate positioned at an open end of the cylindrical cavity, at least a first heaters positioned in the shielding plate, a plurality of second heaters positioned around the metallic body, and a plurality of thermometers positioned in the metallic body. Preferably, the heat capacity of the metallic body is larger than 200 Joules/K, and has radial thickness larger than 5 mm. There are grooves formed on the outer wall of the metallic body, and the second heaters are heating wires embedded inside the grooves. In addition, the flow direction of the current between two adjacent heating wires is opposite to eliminate the magnetic field generated from the current flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.