Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
If the instruments has no drift it is perfectly reproducible. No drift means that with a given input the measured values do not vary with time.
Drift may be classified into three categories:
(1) Zero Drift: If the whole calibration gradually shifts due to slippage permanent set or due to undue warming up of electronic tube circuits, zero characteristics with zero drift are shown in fig(a).
(2) Span Drift or Sensitivity Drift: If there is proportional change in the indication all along the upward scale, the drift is called span drift or sensitivity drift. The characteristics with span drift are shown.
(3) Zonal Drift: In case the drift occurs only over a portion of span of an instrument, it is called zonal drift. There are many environmental factors which cause drift. They may be stray electric and magnetic fields, thermal EMFs changes in temperature, mechanical vibration, wear and tear and high mechanical stresses developed in some parts of the instruments and systems.
Drift is undesirable quality in industrial instruments because it is rarely apparent and cannot be easily compensated for. Thus it must be carefully example, stray electrostatic and electromagnetic fields can be prevented from affecting the measurements by proper shielding. Effect of mechanical vibrating can be minimized by having proper mountings. Temperature changes during the measurement process should be preferably avoided or otherwise be properly compensated for.
What is the value of a resistor marked as 47KK?
Q. Basic definition of electromagnetism? A basic understanding of electromagnetism is essential to the study of electrical engineering because it is the key to the operation of
expain how to do proper initial approximatio for the given cct....... by a example
when i/p voltg is grater than battery diode is clse or open
singly excited magnetic systems
Q. Two balanced, wye-connected, three-phase loads are in parallel across a balanced, three - phase 60- Hz, 208-Vsupply. The first load takes 12 kWat 0.6 power factor lagging, and t
Q. A current of 65 A is measured with an analog ammeter having a probable error of ± 0.5% of full scale of 100 A. Find the maximum probable percentage error in the measurement.
This question is designed to give you practice in manipulating circuit equations using j notation, and to demonstrate that techniques that you have already studied in the d.c. c
The conveyor system is driven by a 240 Volt 50 Hz AC motor requiring a continuous 1 Amp supply. The conveyor has single direction operation. The loading mechanism for the winder
how can i do a question concerning a transfer function
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd