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

Compute the efficiency at one-half load, Q. A certain 10-hp, 230-V motor ha...

Q. A certain 10-hp, 230-V motor has a rotational loss of 600 W, a stator copper loss of 350 W, a rotor copper loss of 350 W, and a stray load loss of 50 W. It is not known whether

Gas hazards in the laboratory, GAS HAZARDS IN THE LABORATORY : As mentione...

GAS HAZARDS IN THE LABORATORY : As mentioned in the introduction of this unit, the gas hazards in a laboratory arise from LPG and other compressed gases. Though the use of gas for

Beem, Ballistic galvanometer

Ballistic galvanometer

Managing a Professional Engineering Project, Design a solar powered electri...

Design a solar powered electric vehicle charging station in a liquid gas station

Mode1 - power supplies , Mode1 When the positive  pulse  from PWM  is a...

Mode1 When the positive  pulse  from PWM  is applied to the transistor Q shown  in figure  it gets  turned  on. In  this condition current  flows  through  transistor Q and.

Wireless cellular systems, i want help in builiding a simulator of cellular...

i want help in builiding a simulator of cellular systems under different frequency reuse scenarios?

Find kfm for the modulator using carsons rule, Q. A commercial FMstation br...

Q. A commercial FMstation broadcasts a signal with 180-kHz bandwidth when |f(t)|max = 2 V. Find kFM for the modulator if the spectral extent of f (t) is 30 kHz, by using Carson's r

Design and build a circuit board, Devise a "green" design to improve the el...

Devise a "green" design to improve the electrical plan of a room in your home. How might you reduce electricity use in your home. Initiate and plan 1. Select two rooms in y

Example of binary subtraction - positive number , Example  of binary  sub...

Example  of binary  subtraction - positive number Case 1.   Positive  number is more than negative number ( i e, answer is positive)   Example   subtract  4510 ( 1011012

Cmc complement carry instruction , CMC Complement Carry Instruction Th...

CMC Complement Carry Instruction This instruction complements  the carry  flag i .e   if the carry flag  is 1 before the execution of this  instruction it will be reset and if

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