pitot head
Học thuậtThân thiện
Definition
Noun: - A combined aerodynamic sensor: A Pitot head is a measuring instrument that integrates a Pitot tube and a static tube. It is designed to measure both total pressure (also called stagnation pressure) and static pressure from the surrounding airflow. The primary function of this device is to determine airspeed, and it is a critical component installed on aircraft.
Usage
The term "pitot head" is a technical noun used specifically in aviation and aerodynamics. It refers to the physical sensor unit mounted on the exterior of an aircraft, typically on the wing or fuselage. - The pilot checked the instruments after a bird strike near the pitot head. - Regular maintenance includes cleaning the pitot head to prevent blockage.
Advanced Usage
- Instrumentation Role: In aviation systems, the pitot head is a key part of the pitot-static system. The pressure differential it measures is sent to the airspeed indicator in the cockpit.
- Icing conditions can cause erroneous readings if the pitot head becomes clogged.
Variants and Related Words
- Pitot tube (noun): Often used interchangeably with "pitot head," though technically a Pitot tube is a component that measures only total pressure, while a "pitot head" combines it with a static port.
- Pitot-static system (noun): The complete aircraft system that uses pressures from the pitot head and static ports to determine airspeed, altitude, and vertical speed.
Synonyms
- Airspeed sensor
- Pitot probe
Related Phrases
- Pitot head cover: A protective cap placed over the pitot head when the aircraft is on the ground to prevent insect or debris ingress.
- Remember to remove the pitot head cover during the pre-flight inspection.
Noun
- measuring instrument consisting of a combined Pitot tube and static tube that measures total and static pressure; used in aircraft to measure airspeed