ABSOLUTE VS SECONDARY INSTRUMENTS
ABSOLUTE INSTRUMENTS |
SECONDARY INSTRUMENTS |
VALUE
OF MEASURED QUANTITY IS GIVEN IN TERMS OF CONSTANTS OR DEFLECTION ONLY
|
VALUE
OF MEASURED QUANTITY CAN BE MEASURED BY DEFLECTION ONLY IF IT IS CALIBRATED
|
BY
COMPARING IT WITH ABSOLUTE INSTRUMENT
|
|
CALIBRATION
IS NOT REQUIRED
|
IT
NEEDS TO BE CALIBRATED W.R.T ABSOLUTE INSTRUMENTS TO DISPLAY PROPER VALUES
|
IT
IS USED AS STANDARD INSTRUMENTS AND ITS USE IS LIMITED TO LABS ONLY
|
IT
IS USED IN DAY TO DAY ACTIVITIES.
|
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