What is zonal drift in an instrument?
A. The difference between the actual and measured values of the signal.
B. The change in the instrument’s output signal over time when the input signal is at a specific zone of the range.
C. The ability of the instrument to measure small changes in the input signal.
D. The degree of closeness of the measured value to the true value of the signal.
Answer:B
What is zonal drift in an instrument?
A. The difference between the actual and measured values of the signal. B. The change in the instrument’s output signal over time when the input signal is at a specific zone of the range. C. The ability of the instrument to measure small changes in the input signal. D. The degree of closeness of the measured value to the true value of the signal.
Explanation: Zonal drift is a characteristic of an instrument that refers to the change in the instrument’s output signal over time when the input signal is at a specific zone of the range. This can occur due to non-linearity in the instrument’s response, or due to the instrument’s response being affected by the signal’s magnitude.