What is the difference between precision and repeatability of any instrument. Why it is measured always in percentage
Answers were Sorted based on User's Feedback
Answer / hiren patel
As per my point of view,
Precision is degree of exactness.It does not mean that how near to goal you are but it shows how many times you will get nearer result as you obtain first time.
for example In archery game goal is center circle and you hit at third circle at position let say at uppermost position. now on second, third , fourth time you will hit at same or nearer to that point. then it is called precision.
Repeatability means how many time the systems repeats the same value under same conditions.
| Is This Answer Correct ? | 7 Yes | 0 No |
Answer / faiyaz ahmad
precision means how many times you measure the thing when ever you will measure you will get difference. that is called precision.
Repeatibility means how many times you close the actual value.
| Is This Answer Correct ? | 0 Yes | 0 No |
what is span value and zero ? and how set ?
Displace type LT to be calibrated in workshop, wt. 40, dia- 60 mm, density- 0.8kg/cm3.
Which standard is used for calibration of Control Valves ?
what is zero and span ?
What is safety barrier and how it is work
what is difference between differial pressure & delta pressure?
i have used level transmitter in starch cooking preparation tank. tank total height 2mtr.sometime LT display shows some error value when tank is fully empty and diaphragm side i already checked okay no problem in diaphragm area. field cable checked 24volt and mA shows correct value while tank empty mA is 4mA. 4mA i needed that 0% but display showing 10% or 15% percentage values are varying continously please give any good solution for me.....
HI THIS IS NOOR AHMMAD.SHAIK, I AM WORKING IN INSTRUMENTATION MAINTENANCE Dept. in BOILER HOSE(BHEL HYDERABAD),,any other persons are working in same dept. i want some HELP in my subject
how to install Differential pressure transmitter in gas line.i need transmitter down side.
whats diffeence between dcs & scada operation.
why 4ma show higher zero ? i have transmiter flow renge 0-1000 m3/h but 4 ma show in monitoring 200 m3/h and 20 ma show 1000 m3/h i want when 4ma show 0 m3/h and 20ma 1000m3/h
what is interface level measurement.who can calibrate interface level measurement transmitter online
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)