Fuel flow transmitters are designed to transmit data

Fuel flow transmitters are designed to transmit data

• A. Electrically
• B. Magnetically
• C. Pneumatically
• D. Hydraulically

Answer: (B)

The essential idea is that fuel flow transmitters use magnetic coupling to pass the measurement signal to the outside electronics. Inside the flow path, a turbine or element with magnets responds to the fuel flow; as it moves, the magnetic field is picked up by a sensor outside the fluid path and converted into an electrical signal for the cockpit indicators. This magnetic transmission provides isolation between the fuel and the electrical system, which helps prevent leaks and contamination. Using magnetic transmission avoids the need for direct electrical connections through the fuel path or for transmitting pressure signals, which would be involved with electrical, pneumatic, or hydraulic methods.

The essential idea is that fuel flow transmitters use magnetic coupling to pass the measurement signal to the outside electronics. Inside the flow path, a turbine or element with magnets responds to the fuel flow; as it moves, the magnetic field is picked up by a sensor outside the fluid path and converted into an electrical signal for the cockpit indicators. This magnetic transmission provides isolation between the fuel and the electrical system, which helps prevent leaks and contamination. Using magnetic transmission avoids the need for direct electrical connections through the fuel path or for transmitting pressure signals, which would be involved with electrical, pneumatic, or hydraulic methods.