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 both commonly used to measure linear and angular velocities as they produce output signals proportional to the motion Piezoelectric sensors can also be used to detect motion by converting mechanical energy into electrical energy Pyroelectric sensors however are typically used for detecting heat and infrared radiation not motion