Device for regulating a wire anemometer
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorJean-Paul Moro
Life of this patent
Estimating the term…
Abstract
An anemometer probe having a single wire or n wires (n>1) that are mutually parallel, for a measurement close to a wall, comprising, for each wire: a) two pins for holding the wire in place, the end of each pin having a flat zone for positioning and fastening the wire; and b) a straight portion of wire brazed onto said flat zones for positioning and fastening the wire.
Claims14
A thermo-anemometer, comprising:
- means for supplying and means for regulating a supply current at a constant level to a wire of a wire anemometer and a reference resistor,
- means for establishing a difference between a signal at the terminals of the wire and a signal at the terminals of the reference resistor, and
- means for maintaining a constant temperature of the reference resistor and the wire;
- wherein said means for regulating a supply current comprises a diode-mounted regulating transistor and a potentiometer and is configured to regulate the supply current such that the wire anemometer operates in cold wire operation.
A method for measuring temperature in a flowing fluid, comprising operating a thermo-anemometer having a reference resistor by supplying and regulating a supply current at a constant level to a wire for the thermo-anemometer, establishing a difference between a signal at the terminals of the wire and a signal at the terminals of the reference resistor, and
- maintaining a constant temperature of the reference resistor and the wire in a cold wire operation by regulating the supply current.
A circuit for regulating a wire anemometer, comprising:
- a battery for supplying a supply current to a wire of the wire anemometer and a potentiometer and a diode-mounted regulating transistor for regulating the supply current of the wire at a constant level and to a reference resistor,
- an amplifier for establishing a difference between a signal at terminals of the wire and a signal at the terminals of the reference resistor, and
- means for maintaining a constant temperature such that the wire anemometer is in cold wire operation.
A thermo-anemometer, comprising:
- a wire anemometer in cold wire operation, and
- a regulation device for regulating the wire anemometer, at constant current, having:
- a battery for supplying current to a wire of the wire anemometer and a potentiometer and a diode mounted regulating transistor for regulating a supply current of the wire and a reference resistor,
- an amplifier for establishing a difference between a signal at the terminals of the wire and a signal at the terminals of the reference resistor, and
- means for maintaining a constant temperature of the reference resistor and the wire.
Dependencies are inferred from the claim text.