Inglês/Português
<< thermal ULD | thermocouple | thermograph >>
Back to: "T"thermocouple
- Definição1
- A device used to generate a small electrical current. A thermocouple is made up of two dissimilar metal wires, such as iron and constantan, copper and constantan, or chromel and alumel. the ends of these wires are joined to form a loop. Electrical current flows through the wires when there is a temperature difference between the junctions, the points at which the wires join. The amount of current flowing in the loop is determined by three things: (1) The types of metals used for the wires; (2) The temperature difference between the two junctions; (3) The resistance of the thermocouples wires. Iron and constantan or copper and constantan thermocouples are used to measure the cylinder head temperature of reciprocating engines, and chromel and alumel thermocouples are used to measure the exhaust gas temperature in both reciprocating and gas turbine engines.
- Fonte1
- CRANE, Dale (ed.). Dictionary of aeronautical terms. 2nd ed. Renton: ASA, 1991.
- Fonte2
- ARAÚJO, João Richard Barcelos. Inglês técnico: técnicos em manutenção de aeronaves. [S.l]: [s.n.], [200-]. 100 p.
- Fonte3
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Manual of aircraft accident and incident investigation. Montreal, 2014. (Doc. 9756)
- Contexto
- It should be kept in mind that as long as the thermocouple system remains intact, the indicating system will present ambient temperature regardless of the condition of the aircraft’s electrical system.
- Subárea1
- Instruments
- Português
- termopar