What component is the sensing device in an electromechanical autopilot system

What component is the sensing device in an electromechanical autopilot system

• A. Barometer
• B. Gyro
• C. Accelerometer
• D. Magnetometer

Answer: (B)

Detecting how the aircraft is rotating is what keeps an autopilot stable. The sensing device in an electromechanical autopilot is the gyroscope because it measures angular rate about the three axes, providing immediate information on changes in roll, pitch, and yaw. This rotational data feeds the control loop so the system can hold or change attitude by driving the servos accordingly. A barometer measures air pressure to determine altitude, not rotation, so it doesn’t provide the necessary attitude information. An accelerometer detects linear acceleration, which isn’t directly used to maintain stable attitude in the autopilot. A magnetometer gives heading relative to Earth's magnetic field, which again isn’t the primary attitude reference. Thus, the gyro is the essential sensing element for the autopilot’s stabilization and attitude-control function.

Detecting how the aircraft is rotating is what keeps an autopilot stable. The sensing device in an electromechanical autopilot is the gyroscope because it measures angular rate about the three axes, providing immediate information on changes in roll, pitch, and yaw. This rotational data feeds the control loop so the system can hold or change attitude by driving the servos accordingly.

A barometer measures air pressure to determine altitude, not rotation, so it doesn’t provide the necessary attitude information. An accelerometer detects linear acceleration, which isn’t directly used to maintain stable attitude in the autopilot. A magnetometer gives heading relative to Earth's magnetic field, which again isn’t the primary attitude reference. Thus, the gyro is the essential sensing element for the autopilot’s stabilization and attitude-control function.