Which sensors are used to sense changes in inclination?

• A. Encoders
• B. Thermal
• C. Altimeter
• D. Gyroscope

Answer: (D)

Sensing how orientation changes relies on measuring rotational motion. A gyroscope provides angular velocity around each axis, which tells you how fast the object is tilting. By integrating that rotation rate over time, you can track the change in inclination. That direct measurement of rotation makes it the best choice for detecting changes in tilt among the options. Encoders measure shaft position and don’t report body tilt, thermal sensors measure temperature, and an altimeter measures altitude. In many systems, an IMU also uses an accelerometer to determine static tilt by sensing gravity, but for capturing changes in inclination, the gyroscope is the appropriate sensor.