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Q: What is the error signal in an automatic control system?
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Does exception always signal an error?

It depends on exactly how you define an error. If an exception is thrown, then it means something has gone wrong. Some Exceptions, such as a NullPointerException, will almost certainly signal an error in your code or data. Others, such as IOExceptions, can be caused by things outside your control, and would probably not be considered errors.


What is definition of open loop transfer function?

According to 'Modern Control Engineering' written by Katsuhiko Ogata, the ratio fo the feedback signal, H(s)C(s)to the actuating error signal (R(s)-B(s)) is called the open-loop transfer function. Here, H(s) is the transfer function of the feedback signal detector, C(s) is the output signal and R(s) is the setpoint signal.


What is dynamic error coefficients in control system?

static error coefficients are the error calculated when steady state is reached. so, the dynamic error coefficients give the error calculated with time. it just calculated by taking the inverse Laplace transform of E(s) term resulting in the equation: e(t)=k0 r(t) + k1 r('t) + k2 r''(t) + ... where, k0: position error coefficient k1: velocity error coefficient k2: acceleration error coefficient sks..


What is a reason for not using feedback control system?

The main reason for not using feedback control system is that time lag may cause a process deviation near the beginning of a process not to be recognized until the process output. It can result in substantial deviation throughout the entire process, causing an error to continue without adjustment. Since feedback control systems usually take input from one sensor. there may be better and more direct ways to control a system using multiple sensors. Operator intervention is usually required when the system is not able to maintain stable closed-loop control. Feedback control systems do not take predictive control actions for effects of known disturbances.


Why it is generly true that a digital signal required high bandwidth than analog signal?

A: Analogue signal Direct voltage that varies in the low spectrum of frequency on digital signal the information is deciphered in micro seconds therefore the frequency must be hi the higher the better.

Related questions

State one example of an automatic Voltage system that is error actuated?

An AVR circuit, the voltage sensing unit measures the incoming voltage and compares it to the set point. Then an error signal is produced and sent to the amplifier,the error signal then reaches a firing circuit which consists of a thyristor with a field current which will adjust alternators output current. Dependant on the signal from the actuating unit.


What does error code p0700 on a dodge ram 1500 mean?

Trouble code P0700 means: Automatic Transmission Control System Malfunction


Reason use an op amp in a closed loop control system?

Differential Amplifier or Summing Amplifier are usually used in a closed loop control system. The error signal will be the DIFFERENCE between the setpoint value and feedback value for Differential Amplifier. Whereas for Summing Amplifier, the error signal will be the difference between the setpoint value and feedback value only if one of the value is inverted in polarity. Another reason Op Amp is used: amplify the error signal as error signals are usually very small. Hope this helps.


What is along and digital control system?

A: The last time that i kept up with types of systems there were only three what is along?. Well anyhow type-0 system is one that requires a constant error signal to operate type-1 a constant rate of change of the controlled variable requires a constant error signal under steady state condition. type 1 is usually referred as servomechanism system. type-2 a constant acceleration of the control variable requires a constant error under steady state condition. type-2 sometimes is referred to as zero velocity error system


What is the Role of feed back in control system?

The control system a inputs a setpoint which represents the desired value of whatever is being measured, and inputs the feedback signal to determine the actual measured value. The difference between the two is used to calculate the error term. The error term in turn causes a change in the output that drives controlled device until the measured value equals the setpoint, and the error term is zero.Without feedback then, the control system is blind, and is unable to tell whether changes in the control output are having the desired effect.


What does the Error Code P0700 on 2002 Dodge Intrepid mean?

Trouble code P0700 means: Automatic Transmission Control System Malfunction You need to check the TCM for codes


What does Error Code p0700 mean on a 1999 Dodge Intrepid?

Trouble code P0700 means: Automatic Transmission Control System Malfunction You need to check the TCM for codes


What does the error code p0700 mean on a 2004 Jeep Liberty?

Trouble code P0700 means: Automatic Transmission Control System Malfunction You need to check the TCM for codes.


What is the Difference between data link error control and transport layer error control in osi model?

Data link error control checks for error in each router and end-system, but transport layer error control checks for error only at the end-systems.


Does exception always signal an error?

It depends on exactly how you define an error. If an exception is thrown, then it means something has gone wrong. Some Exceptions, such as a NullPointerException, will almost certainly signal an error in your code or data. Others, such as IOExceptions, can be caused by things outside your control, and would probably not be considered errors.


What is error 9 on rdc634 clarion CD player?

Error 9 on that particular changer is a weak RF signal error. That means that the unit is not sending out a strong enough signal to the antenna. Error 9 on that particular changer is a weak RF signal error. That means that the unit is not sending out a strong enough signal to the antenna.


What is the use of connecting an integrator in delta modulation?

integrator converts the quantised signal to saw tooth signal which then compared with the present signal and error signal is generated,and error signal is quantised and the process continues