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.
Determine whether the diode (considered to be ideal) in the circuit of Figure (a) is conducting.
What is memory mapping? The assignment of memory addresses to several registers in a memory chip is known as memory mapping.
Why are some flashlights brighter than others? Why is it important that all of the batteries point in the same direction? What is the difference between old batteries and new? What
Q What do you mean by Direct coupling? In this method the a.c. output signal is fed directly to the next stage. No reactance is included in this coupling network. Special d.c.
Q. Explain working of Shaded-pole motors? Shaded-pole motors: The least expensive of the fractional-horsepower motors, generally rated up to 1 / 20 hp, they have salient stator
You have been hired by Serge Brink and Larry Park to assist them in the evaluation of a recently issued term sheet from Global VC Partners. The new venture is an Internet startu
Mini Computers Larger computer more computing power having capability to address more memory and more speed than microcomputer called minicomputer. These computers
Determine the Disadvantages of expert systems - Lacks common sense in some decision making processes - Errors in the knowledge base can result in incorrect decisions being
OUT Output Instruction This instruction is used send data byte stored in the accumulator to the output port whose address specified in the instruction. The instruction
Q. The radiation pattern of a half-wave dipole antenna is given by (a) Sketch the radiation pattern in the principal plane of xz containing angle θ. (b) Determine the beam wi
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