Temperature sensor and method for measuring temperature
AssigneeWeston Aerospace Limited
InventorWojciech Konrad Kulczyk
Life of this patent
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Abstract
The invention provides a total gas temperature sensor for measuring the temperature of gas in a gas flow. A gas temperature sensor in accordance with the invention comprises a measurement chamber having a gas inlet and a gas outlet; an outlet valve located at the gas outlet, operable to seal the gas outlet when in a closed position, and a temperature sensing element located in the measurement chamber. The sensor is simple to manufacture, is robust, provides for a low recovery correction and does not suffer from significant boundary layer problems.
Claims15
A gas temperature sensor comprising:
- a measurement chamber having a gas inlet and a gas outlet;
- an outlet valve located at the gas outlet, operable to seal the gas outlet when in a closed position;
- and
- a temperature sensing element located in the measurement chamber.
A total air temperature measurement apparatus, comprising:
- a measurement chamber having an air inlet and an air outlet;
- an outlet valve located at the air outlet, operable to prevent air flow through the measurement chamber when in a closed position;
- and
- a temperature sensor located in the measurement chamber.
A gas temperature sensor comprising:
- a measurement chamber having a gas inlet and a gas outlet;
- an outlet valve located at the gas outlet, operable to seal the gas outlet when in a closed position;
- a temperature sensing element located in the measurement chamber;
- and
- a controller, wherein the controller is connected to the outlet valve and to the temperature sensing element, and wherein the controller is configured to control the outlet valve to move between the closed position and an open position at a predetermined frequency and to record temperature measurements from the temperature sensing element when the outlet valve is in the closed position.
A method of measuring the temperature of a gas in a gas flow, comprising the steps of:
- a) providing a temperature sensing element in a measurement chamber, the measurement chamber positioned in the gas flow;
- b) blocking the gas flow at an output of the measurement chamber;
- c) measuring the temperature of the gas in the measurement chamber while the gas flow is blocked.
Dependencies are inferred from the claim text.