In-situ radiant heat flux probe cooled by suction of ambient air
US6325535A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1999 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | Aug 23, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K1/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A probe for determining the heat flux in a direct-fired heater. The direct-fired heater is under a vacuum pressure. This vacuum pressure induces a small quantity of ambient air through a ceramic insulating tube and eventually into the heater. The induced air cools an absorber head and receptacle, causing heat to flow from a target to a base. The target is an outer surface of the absorber head exposed to radiant heat inside the direct-fired heater. The base is that portion of the absorber head and receptacle which has a surface exposed to cooling air within the ceramic tube. The vacuum pressure inside the heater causes ambient air to be induced into a second end of the ceramic tube. Air passages at a first end of the ceramic tube cause the induced air to flow past the base and into the heater. A thermocouple is fitted into a cylindrical slot inside the receptacle. First and second thermocouple wires extend from the thermocouple to a weatherhead, which has electrical contacts which connect to the first and second thermocouple wires and to instrumentation, such as a digital meter or other input, output device such as a microprocessor or computer for monitor and control of heat flux. A…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.