Question

The dynamic characteristic of an instrument is

• A. Reproducibility
• B. Sensitivity
• C. Dead zone
• D. Fidelity

Hint:

Fidelity is the ability of an instrument to follow changing input accurately, so it is a dynamic characteristic.

Answer 1

The Correct Option is D

Instrument characteristics are generally classified as static characteristics and dynamic characteristics. Static characteristics describe the performance of an instrument under steady conditions. Examples include sensitivity, reproducibility, accuracy, precision, and dead zone. Dynamic characteristics describe the behaviour of an instrument when the input changes with time. Fidelity is a dynamic characteristic. Fidelity means the ability of an instrument to follow the changes in input accurately without distortion. If an instrument has high fidelity, its output reproduces the input variation faithfully. Sensitivity is a static characteristic. Reproducibility is also a static characteristic. Dead zone is the range over which input changes do not produce output change. Therefore, the dynamic characteristic of an instrument is: \[ \text{Fidelity}. \]