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Posted inEngineering Metrology & Measurement
Based on control
1) Controllable errors: The sources of error are known and it is possible to have a…
Posted inEngineering Metrology & Measurement
Error of observation
1) Reading error: It is the error of observation resulting from incorrect reading of the indication…
Posted inEngineering Metrology & Measurement
Instrumental error
1) Error of a physical measure: It is the difference between the nominal value and the…
Posted inEngineering Metrology & Measurement
Performance of instruments
All instrumentation systems are characterized by the system characteristics or system response. It consists of…
Posted inEngineering Metrology & Measurement
Measuring instruments
A broad classification of the instruments based on the application mode of operation, manner of…
Posted inEngineering Metrology & Measurement
Classification of Standards
1. Line & End Standards: In the Line standard, the length is the distance between the…
Posted inEngineering Metrology & Measurement
Derived SI units
1) For Frequency: Hertz (1 Hz = 1 cycle per second) 2) For Force: Newton (1 N…
Posted inEngineering Metrology & Measurement
Supplementary SI units
1) For Plane angle: Radian (rad) 2) For Solid angle: Steradian (sr)
Posted inEngineering Metrology & Measurement
Basic units in SI system
1) For Length : Metre (m) which is equal to 1650763.73 wavelengths in vacuum of the…
Posted inEngineering Metrology & Measurement
Generalized measuring system
The generalized measuring systems consist of the following common elements: 1. Primary sensing element 2.…