Astigmation control, Electrical Engineering

Assignment Help:

Astigmation control: In most modern oscilloscopes there is an additional focusing control marked

Astigmation. This is used to correct an effect which exactly is analogous to astigmatism in optical lenses. To focus the spot correctly, it is necessary to stop it near the centre of the screen by switching off the successive adjustment of focus and Astigmation controls.

 

 


Related Discussions:- Astigmation control

Ideal or perfect transformer, a) A 230 V/25V, 50 HZ transformer with a rate...

a) A 230 V/25V, 50 HZ transformer with a rated primary current of 1,2 Amps is used to supply a number of 25 V, 30 Watt halogen light bulbs. Assuming an ideal transformer and tha

States kirchoff''s voltage law, States Kirchoff's Voltage Law Kirchoff...

States Kirchoff's Voltage Law Kirchoff's Voltage Law (KVL) describes in any closed loop in a network, the algebraic sum Figure of the voltage drops (i.e. products of current

Assignment, design single phase distribution circuit from a supply point to...

design single phase distribution circuit from a supply point to a load

What do you understand by analog to digital conversion, Q. What do you unde...

Q. What do you understand by Analog to Digital conversion? What do you understand by A/D conversion? Give an explanation of any one of the following A/D techniques: (i) Su

Common channel signalling, Common channel signalling Signalling system...

Common channel signalling Signalling systems link the variety of switching systems, transmission systems and subscriber equipments in telecommunication network to enable

Why we need biasing, Q. Why we Need biasing? Need for biasing : Baising...

Q. Why we Need biasing? Need for biasing : Baising is necessary to establish the quiescent operating point so that the device operates with the linear region without exceeding

Signals and system, how can i calculate that is following signal is periodi...

how can i calculate that is following signal is periodic or not? X[n]= ?_(k=-8)^8¦?{d[n-4k]-d[n-1]-4k]}?

Find the per-phase impedance of the load, Q. A three-phase, three-wire 208-...

Q. A three-phase, three-wire 208-V system is connected to a balanced three-phase load. The line currents ¯ IA, ¯ IB, and ¯ IC are given to be in phase with the line-to-line voltage

Input characteristics - power semiconductor devices , Input Characteristics...

Input Characteristics Transistors  can be  operated in the switching  mode. If  base  current IB  is zero transistor is in  an ON  state  behaves as a switch. If  the base  cur

Industrial Automation, 1. Write the Boolean expression and draw the gate lo...

1. Write the Boolean expression and draw the gate logic diagram and typical PLC ladder logic diagram for a control system wherein a fan is to run only when all of the following con

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd