Question

Match List - I with List - II. Static characteristics of transducer with their definition. 

 

• A. A-II, B-IV, C-I, D-III
• B. A-II, B-IV, C-III, D-I
• C. A-II, B-III, C-IV, D-I
• D. A-III, B-IV, C-I, D-II

Hint:

Differentiate clearly between 'Precision' and 'Accuracy'.
Precision refers to how close multiple measurements are to each other (repeatability), whereas Accuracy refers to how close the measurement is to the absolute true value.

Answer 1

The Correct Option is A

Step 1: Concept:
The question requires matching the fundamental static characteristics of measurement instruments (transducers) with their correct standard definitions.

Step 2: Step-by-step Explanation:

• Span (A): Span is defined as the algebraic difference between the upper and lower limits of the measurement range of the transducer.

• Therefore, it represents the total operating range of the transducer over which it can accurately measure the physical variable.

• Thus, A matches with II.

• Noise (B): Noise refers to any random, erratic, and unwanted electrical or physical signal that interferes with the primary desired signal at the output of the instrument.

• In transducer applications, minimizing noise is critical to maintaining a high signal-to-noise ratio.

• Thus, B matches with IV.

• Precision (C): Precision indicates the degree of repeatability or reproducibility of a measurement when the same input quantity is repeatedly measured under identical conditions.

• It is important to note that high precision does not necessarily imply high accuracy.

• Thus, C matches with I.

• Offset (D): Offset, also known as zero error or zero drift, is defined as the baseline output signal that exists even when the true input variable is identically zero.

• Calibration is often required to eliminate this offset error before actual measurements are taken.

• Thus, D matches with III.

• Compiling all the correct matches: A \(\rightarrow\) II, B \(\rightarrow\) IV, C \(\rightarrow\) I, and D \(\rightarrow\) III.

Step 3: Final Answer:
The matched sequence perfectly aligns with Option (A).