9 Questions
What is the main difference between passive transducers and active transducers?
Passive transducers derive power from an auxiliary power source and part of the power from the physical quantity being measured, while active transducers do not require an auxiliary power source.
Explain the difference between primary, secondary, and tertiary measurements.
Primary measurements are direct measurements, secondary measurements are derived from primary measurements, and tertiary measurements are derived from secondary measurements.
What are the three main types of errors associated with measurements?
Systematic errors, random errors, and gross errors.
Define accuracy in the context of measuring instruments.
Accuracy is the extent to which a reading might be wrong, often expressed as a percentage of the full-scale reading of an instrument.
Name some physical quantities that can be measured by instruments.
Physical quantities like length, time, and current.
What are the static characteristics of a measuring system?
Static characteristics are not time-dependent and include accuracy, precision, linearity, sensitivity, threshold, and hysteresis.
Give an example of a chemical quantity that can be measured by instruments.
Chemical quantities like concentration and elements/components.
Explain the concept of precision in measuring systems.
Precision refers to the ability of a measuring instrument to provide consistent results when the same quantity is measured repeatedly.
What are the main differences between errors in display, errors due to uses, and errors due to working conditions?
Errors in display refer to discrepancies in the output shown by the instrument, errors due to uses are caused by incorrect operation or calibration, and errors due to working conditions result from environmental factors affecting the measurement.
Test your knowledge on the classification of transducers into passive and active types based on their power source requirements and generation of output. Explore different types of measurements with respect to techniques used in transducers.
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