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!
Q. what is oscilloscope probe compensation and how is it adjusted? What effects are noted when the compensation is not correctly adjustment?
Direct Probe: This probe is simplest of all the probe and uses a shielded coaxial cable. It avoids stray pick up which may create problems when low level signals are being measured. It is usually used for low frequency or low impedance circuit. In using the shielded probe, the shunt capacitance of the probe and cable is added to the input impedance and capacity of the scope and acts to lower the response of the oscilloscope to high impedance and high frequency circuit.
External high impedanc34 probes are used to increase the input resistance and reduce the effective input capacitance of the oscilloscope. A resistor and capacitor combination can be added to an oscilloscope as shown. In effect, of the probe, supposing it is intended to attenuate the signal by a factor of 10. By using equation, where k=10, the values of can be computed as under.
The input resistance has been increased by a factor of 10 while at the same time =, the input capacitance has been decreased by a factor of 10. The combination of and is called probe.
Capacitor is usually adjustable to compensate for difference in input capacitance between oscilloscopes. If the probe capacitance is adjusted the wrong value the oscilloscope will exhibit a factor frequency response. The adjustment of probe is usually checked by displaying a square wave on the CRT screen. If the probe is not properly compensated the display of square waveform will be adversely affected. If the value of is too small, the leading edge of the square wave is rounded off but if the value of is too large the leading edge of square wave overshoots.
Q. Nonsalient-pole rotor construction? The nonsalient-pole (smooth or cylindrical) rotor construction is preferred for high-speed turbine-driven alternators (known also as turb
If the message has a spectrum where K and Wf are positive constants, sketch the spectrum of a standard AM signal that uses the message. Comment on the physical signi?cance
Q. Illustrate procedure of Hex to Binary Conversion? It is also simple to convert from an integer hex number to binary. This is achieved by: Convert the Hex number t
Define super scalar architecture. Super scalar architecture: The Pentium microprocessor is organized along with three execution units. Individual executes floating-point inst
1. Describe the magnetic effects of current? ( to achieve a pass grade, describe the magnetic effect of current) 2. Complete the diagram to show the direction of mo
Need a project in Optoelectronic with simulation in Optispice or Matlab.with complete report and presentation. ANy ideat about project and how much does it cost.
Consider the circuit of Figure (a) with v S (t) = 10 cos ωt. Use the piecewise-linear model of the diode with a threshold voltage of 0.6 V and a forward resistance of 0.5 to dete
We can illustrate the direction and strength of a magnetic field by means of drawing 'flux lines'. These have arrows to show the direction of the magnetic field at any point and th
Explain properties and application of Aluminium. Properties of Aluminium: 1) Pure aluminium in colour is silver white. 2) Aluminium is a ductile metal and can be put
Nodal analysis procedure: 1. Verify the number of common nodes and reference node within the network. 2. Assign current and its direction to every distinct branch of the n
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