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US 8,541,720 B2Granted
Apparatus for remotely measuring surface temperature using embedded components
AssigneeRaytheon Company
InventorMichael S. Schwerer
Life of this patent
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Abstract
In one embodiment, a temperature sensing apparatus includes a temperature sensor disposed in a structure at a first depth from a first surface of the structure. A heat flux sensor is also disposed in the structure at substantially the same depth as the first depth. A measurement circuit is coupled to the temperature sensor and the heat flux sensor. The measurement circuit calculates a surface temperature of the first surface based on a temperature of the temperature sensor and a heat flow of the heat flux sensor.
Claims20
A temperature controlling apparatus comprising:
- a radome having at least a first layer, a second layer and a third layer that are disposed adjacent one another, the first layer having a first surface opposite the second layer;
- a temperature sensor disposed between the first layer and the second layer;
- a heat flux sensor, separate from the temperature sensor, disposed between the first layer and the second layer;
- a heater element disposed on a second surface of a third layer opposite the second layer;
- and
- a measurement circuit coupled to the temperature sensor, the heat flux sensor, and the heater element, the measurement circuit operable to:
- calculate an outside surface temperature of the radome based on a temperature of the temperature sensor and the heat flux of the heat flux sensor;
- and
- control the outside surface temperature of the radome by selectively applying electrical power to the heater element based on the calculated outside surface temperature.
6 more elements
A temperature sensing apparatus comprising:
- a temperature sensor disposed in a structure at a first depth from a first surface of the structure;
- a heat flux sensor, separate from the temperature sensor, disposed in the structure at substantially the same depth as the first depth;
- and
- a measurement circuit coupled to the temperature sensor and the heat flux sensor and operable to calculate a surface temperature of the first surface based on a temperature of the temperature sensor and a heat flux of the heat flux sensor.
1 more element
A method comprising:
- measuring a temperature of a structure at a first depth from a first surface;
- measuring a heat flow of the structure, separate from measuring the temperature of the structure, at the first depth from the first surface;
- calculating a surface temperature of the first surface based on the temperature at the first depth from the surface and the heat flow at the first depth from the first surface.
Dependencies are inferred from the claim text.