Analog computers, Electrical Engineering

Assignment Help:

Q. Analog Computers?

Although not used as much as the digital computer (which nowadays forms the basic tool for numerical analysis and the solution of algebraic as well as differential equations), the analog computer still retains some significant advantages over the digital computer. A physical system can be represented by a set of differential equations which can be modeled on an analog computer that uses continuously varying voltages to represent system variables. The differential equation is solved by the computer, whereas the modeled quantities are readily varied by adjusting passive components on the computer. The mathematical functions (integration, addition, scaling, and inversion) are provided by op amps.

The analog computer components are shown in Figure. Let the ordinary differential equation to be solved be

1363_Analog Computers.png

The simulation of the solution is accomplished by the connection diagram of Figure 5.4.19. Time scaling is done by redefining t as t = ατ , in which case the differential equation [Equation] becomes

1064_Analog Computers1.png

1423_Analog Computers2.png

The coefficients may simply be scaled by the appropriate factors to change the solution time of the analog computer. For example, if α = 20, then t = 20 s corresponds to τ = 1 s, and thus the solution time may be reduced.


Related Discussions:- Analog computers

Explain einstein relation, Explain Einstein relation. Einstein relation...

Explain Einstein relation. Einstein relation: There exists a significant relation between the diffusion constant and the mobility. It is termed as the Einstein relation and

Difference between photography & holography, 1.       In ordinary photograp...

1.       In ordinary photography, each part contains information of the original object separately and in case some part of the object is destroyed then the information of that par

3phase unbalanced load flow, under three phase 4 wire load unbalanced distr...

under three phase 4 wire load unbalanced distribution network how to calacualte the voltage across the load when no load resistance is specified, however the real and reactive powe

Energy stored in inductor, One circuit has resistor 40? connected in series...

One circuit has resistor 40? connected in series with inductor  15H and dc voltage 220V. Calculate: i)  Time constant ii)  Current at time (i) iii)  Current at time 0.0

14. What is a vector impedance meter? State its application., What is a vec...

What is a vector impedance meter? State its application.

Find the quantity of electricity transferred, If a current of 20A flows for...

If a current of 20A flows for five minutes, find the quantity of electricity transferred. Quantity of electricity,   Q = It = 20 x 5 x 60 = 6000C     

Simple zener voltage regulator, Consider a simple zener voltage regulator w...

Consider a simple zener voltage regulator with the circuit diagram shown in Figure (a). (a) For a small reverse resistance R Z S and V S - R S i out > V Z , show that v ou

Analog circuit, What is the disadvantages of diodes as a series element in ...

What is the disadvantages of diodes as a series element in a clipper?

Digital electronics, Design a recycling MOD 19 up counter using JK FFs. In ...

Design a recycling MOD 19 up counter using JK FFs. In your design, include the logic circuit diagram and the timing diagram output that counts from 000002 = 010 to 100112 = 1910. C

Write short notes on the stability factor of biasing circuit, Q. Write shor...

Q. Write short notes on the Stability Factor of Biasing circuits. The degree of success achieved in stabilizing Ic in the face of variations in Ico is expressed in terms of sta

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