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

Data transmission in bus topology, Q. Data transmission in Bus Topology ? ...

Q. Data transmission in Bus Topology ? Bus Topology:This topology shares a single path or link way among all users. This common single path way is called bus. In this topology,

The time constant of the field winding, The field winding of a 200 V d.c. m...

The field winding of a 200 V d.c. machine has a resistance of 20? and an inductance of 500mH. Calculate: (a)  The time constant of the field winding (b)  The value of curr

assembly language program , Write an Assembly language program that will p...

Write an Assembly language program that will produce a PWM signal with a desired average voltage. The user selects the desired average voltage by pressing keys 1 - 4. If the

Electromagnetism, explain how can you find hysteresis loss from hysteresis ...

explain how can you find hysteresis loss from hysteresis loop

Solid-state control of synchronous motors, Solid-State Control of Synchrono...

Solid-State Control of Synchronous Motors  The speed of a synchronous motor can be controlled by changing its supply frequency. With variable-frequency control, two modes of op

Explain the working of frequency division, Explain the Working of Frequency...

Explain the Working of Frequency Division? A frequency divider able to be constructed from J-K flip-flops by taking the output of one cell to the clock input of the next and th

Network theorems, what is the limitations of maximum power transfer thorem ...

what is the limitations of maximum power transfer thorem ?

Explain about subscriber loop system, Q. Explain about Subscriber Loop Syst...

Q. Explain about Subscriber Loop System? Subscriber Loop System:Each subscriber in a telephone network is connected normally to the nearest switching office by a dedicated pair

Explain how switching systems are classified, Question 1 Explain how switc...

Question 1 Explain how switching systems are classified Question 2 Explain the function of pulse dialing in rotary dial telephone Question 3 Explain the functioning of crossba

What is threaded system, What is Threaded system. Threaded system: At...

What is Threaded system. Threaded system: At times we require implementing an operating system which can process multiple threads. Many threads are handled through the kernel

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