Question

Which of the following sensors can be used to monitor linear and angular velocities and detect motion?
(A) Incremental encoder
(B) Tachogenerator
(C) Piezoelectric sensors
(D) Pyroelectric sensors
Choose the correct answer from the options given below:

• A. (A), (B) and (D) only.
• B. (A), (B) and (C) only
• C. (A), (B), (C) and (D).
• D. (B), (C) and (D) only.

Hint:

To measure motion and velocities use sensors like incremental encoders and tachogenerators that directly convert mechanical motion to electrical signals

Answer 1

The Correct Option is B

Incremental encoders and tachogenerators are widely used for measuring linear and angular velocities, as they generate output signals proportional to motion. Piezoelectric sensors can also detect motion by converting mechanical energy into electrical energy. In contrast, pyroelectric sensors are typically utilized for detecting heat and infrared radiation, not motion.