The smallest change in an input that results in a detectable change in the instrument's output.
How close a measured value is to the true or expected value.
The process of ensuring an instrument's output is consistent and accurate by comparing it against a standard reference. Primary Measuring Instruments
"Electrical and Electronics Measurements and Instrumentation" is a core engineering discipline that focuses on the techniques and devices used to quantify electrical properties—such as voltage, current, and resistance—and physical variables like temperature and pressure. This field is essential for designing, testing, and maintaining electrical systems, ensuring they operate within safe and accurate parameters. Core Concepts of Measurement
Instruments are generally categorized as (providing an immediate reading), Recording (tracking values over time), or Integrating (totaling a quantity, like an energy meter). Department of Electrical & Electronics Engineering - GRIET
Measurement is the process of comparing an unknown quantity to a known standard. Key performance indicators for these systems include:
The degree of consistency or repeatability in successive measurements.
The smallest increment of change in a measured variable to which an instrument will respond.