Control Definition and 1000 Threads

Senate rejects background check amendment 54-46 http://www.cnn.com/2013/04/17/politics/senate-guns-vote/index.html?hpt=hp_c2 I'm having difficulty finding the actual bill. Does anyone have a link? I'm sick of reading summaries and opinions without reading the actual bill. I tried searching...

Homework Statement Given the transfer function: R(s)=\frac{K}{s(s+2)(s^2+4s+5)} Find the following (needed to sketch the root locus: a) Number of branches b) Symmetry c) Starting and ending points d) behavior at infinity (asymptotes) e) Real axis breakaway and break-in points. f)...

Hi. I'm currently trying to build a circuit in order to control a small pump motor from an ardupilot mega 2.5 microcontroller. The pump is rated at 12 v and 3.6 w but I only need to give it about 9 v for operation. I'm using a basic supply of 9 v battery or 2 in series to give the power...

Homework Statement Welding robot is defined by the block diagram attached/ excuse the paint work. (hope that worked) find: a)maximum value of K required to achieve stability. b)roots of the characteristic equation, at half the maximum K value. c)estimated percentage overshoot, if the...

1. How I can calculate the flow mechanics forces that operated on the wafer? How I can calculate the stress, forces and torques that are permit to put on a wafer that his thickness is 100 microns and his width is 10 meter and his length is 10 meter. The wafer is from the family of...

I am trying to make a sound activated linear actuator to open blinds when my alarm goes off. There are a couple concerns I have; Will the switch be triggered by a loud alarm clock? and would there be a way to have another switch to close the blinds once they have been opened, something like a...

Hello all, I am a student of Nuclear Engineering and I am very new to this beautiful field of engineering. I have been very curious related to a discussion in my class about "Average temp control" of a NPP... This is in relation to the effects of Tube plugging in the Steam Generators which...

hey all, i'm stuck with the following designing problem (Control course) : Homework Statement given the location of the poles , find rise time , peak time, percentage maximum overshot and settling time for each pole. pole are: 1 . pole at θ = 70 , ωn = 1 2. pole at θ = 70 , ωn = 3...

Why should the input follow the exact output in control systems (Transfer function). What if my system is an amplifier ? shouldn't that means that the output is the input * gain ? I can't understand the differences between dealing with a real system ( such as an amplifier) of dealing with a...

Are F1 control arms, upper/lower designed to supply an amount of downforce or just the ability to cut through the air with as little interferance as possible? I had seen a photo recent and it got me woundering. Maybe someone can explain Cheers

I am doing project on open loop v/f control of three phase induction motor. How to decide the frequency and amplitude of triangular wave(carrier wave) for sinusoidal PWM ?

If I construct a curve such start from point A0, A3, to point A6 where A1-A2 and A4-A5 are control points, is called a Bezier curve. What is it called by and what its equation if I construct and fit a curve start from point A0 > A1 > A2 > A3 > A4 > A5 > A6 such as below image?

Homework Statement In this exercise we want you to apply your knowledge of Relay Logic Instructions to design a program which will control the ProSim-II Door. The Door System includes a Reversible Motor, a pair of Limit Switches and a Control Panel, all connected to your PLC. The program...

Homework Statement Different control systems can be distinguished by categorising them as regulator control systems, positioning (or servo) control systems or tracking control systems. definition? components features, diagram? examples? describe one industrial application in detail...

When designing a State Observer for a control system the observer poles (eig(A-LC)) should typically be about 10 times faster than the controller poles (eig(A-BK)). But when designing a digital control system what does it mean for the poles to be faster? For the analog case it simply means...

I have a lot of questions, if you know something in one of them or more I will glad if you can write a replay I search after researches or others things that are correlated between optimal control and autonomous vehicles it can be things like how to calculate the shortest way, the rapid way...

what i mean is, if i want to make a certain rectifier circuit to some sort of load, how would i know which diodes and transistors/IGBT's/MOSFET's to use? for example, i have an AC source with 50 hertz and a load that requires 60 hertz, what would i use? can you show me calculations?

Hello, I am confused why when we turn on a faucet on small, the water doesn't accelerate out of the tap like you would expect from Bernoulli's equation where a reduced area means a high velocity. It seem's like the faucet only regulates flow rate but not the pressure. However, if you connect a...

I am trying to implement a digital state space control and am confused about something. The system has the standard state space form: x(k+1) = Ax(k) + Bu(k) y(k) = Cx(k) The vector y(k) comes from the sensors measurements and u(k) is what is sent to the actuator, right?

I have used many mobile phones and controlled volume on them but I have never been able to figure out how the volume increases or decreases, i.e, what actually happens in a circuit board or other parts present in the phones when we are controlling the volume which ultimately leads to speakers...

Using Laplace can someone please show me in simple terms how i would solve the following function? This is a lecture example. The solution just shows the answer, nothing about how we get it or what it represents. I am finding this subject particularly difficult to come to grips with. δ(t-1)...

Hello forum, I have a ceiling fan with a remote control. The battery dies too quickly. There is only one IC in the little circuit board. I would like to understand where the issue is. Can I do that with a voltmeter? But where would I look? What approach? Where would I measure the voltage to...

Why is time constant form of transfer function in control system better than pole zero form ? If a closed Loop transfer function is given to me how should i find D.C gain ?

Homework Statement In my notes it is stated that an integrator adds a phase lag of -Pi/2 and thus can cause instability. I want to understand what this really means and am deviating from the notes somewhat so do not know if I am barking up the wrong tree. Homework Equations Given a...

I am trying to begin with fuzzy logic, but this initial question is preventing me from moving any forward. It appears that fuzzy logic control is just an improvement over bang-bang control system. Like instead of doing bang-up , bang-down it does bang-up-hard, bang-up-small bang-down-small etc...

Homework Statement Here is the system I am looking at Homework Equations So I worked out a formula for the steady state error and put it in a form similar to masons gain formula The Attempt at a Solution But when I try and draw a block diagram and work out e I get...

I'm 95% sure I got it all correct, but I'd appeciate another set of eyes Homework Statement 1) What's a thermistor? What is its principle of action? 2) What's a thermocouple, and what is its principle of action? 3) How does temperature transducer act based on the bimetal principle...

The NRA says it wants existing laws to govern the control of firearms. The NRA removed the power of the ATF to execute the existing laws. My forecast for future political action is that the NRA will face full legal disclosure in the SCOTUS. Todd Tiart - Fox news July 19 2011 Todd Tiart...

Homework Statement A horizontal water jet produces a wide sheet of parallel-flowing liquid that strikes an inclined plate and then divides, with a fraction of the liquid flowing up the plate and the remainder flowing down the plate. The figure shows a section of the flow. All surfaces of the...

I have to build a device which have 4 dof governed by 4 separate motors. Need to remotely control which was the motor spins and when to stop them. What equipment do I need? and is there any guidelines? Need help asap. Thanks,

Hi everyone here! I'm a LSA and PPL pilot, working on my CPL, and I have some questions to those who have knowledge of the aeroelastic effects and flutter phenomenon. I would like to talk a little about aerodynamic flutter onset speed and flight control malfunction. It is known that freeplay...

hey ... i am working on Electric control panel for pump but the Problem i am new on this Field all i know in this Electric control panel is conductor please can you help me to find References explain Components of Electric control panel or just anyone tell me the names of...

Hello I am designing single phase inverter with TMS320LF2406 DSP. I created sinusoidal output voltage, and now i want to make regulation. While reading about regulation i found that it is recommended to use outer loop as voltage loop to generate Iref using PI controller, then this Iref...

So this is my idea: make concrete using iron sand, preferably one with a decent ferromagnetic interaction. As the concrete sets, apply a magnetic field. The ferromagnetic particles align to the field creating a structure within the concrete. Possible to coat the iron sand in a retarding...

I would like to try and set up a pressure control system in my lab using house vacuum and compressed air. Or otherwise using a compressed air source and vacuum pump. I want to be able to control the pressure in a reservoir (a syringe) within the range of -15 to +15psi. I was thinking...

How to design a LMFBR control system. I mean the whole plnat's operation and reactor control system.

with s being the sensitivity of a transfer function GC/(1+GC) to the parameter G. (1/(1+GC) I see mathematically how it works out. My question is about the profoundness of the statement. Qualitatively, what does it mean

I need to design a class D low power RF amp that I can control the RF output of without tampering with the input signal. I need about 200mW out @ 50 MHz but the input drive is a digital coded pulse train I can't tamper with in any way. I need class D for best efficiency and battery life. How...

Hello everyone! We have built the following model with Automation Studio. It's a simple electropneumatic system with a 4/3 valve and a piston. I would like to eliminate the oscillation of the piston with a PID controller. Does anyone know how to do it? Thanks

βHi, I'm working in a project with an arduino mega 2560 controling a robotic arm with 2 DOF moved by servo motors. I want to make the arm lift vertically about 20 cm as if it would carry a transformer to a pole. I was thinking in inverse kinetics (don't know if that's the name in english) to...

I've been trying to search for some sort of list of top schools for graduate study in control theory. While there are rankings available for electrical engineering in general, I'm having a hard time finding rankings for specific specializations. So far I've heard Carnegie Mellon, Stanford...

control system -- open loop transfer function and open loop gain Is there any difference between open loop transfer function and open loop gain ?

hello all, i need some help on this one. i want to do an article about the posible aplications of quantum entanglement in aircraft flight control systems. i want to entangle two transistors, put one of them at the ACE - actuator control electronics (probably) in the pilot's cabin and the other...

Hey everyone- Does anyone have any idea what kind of software/computer languages/tools a control systems engineer would use on a daily basis? I know 'control systems engineer' is a vague title- I'm looking specifically at like aircraft flight control systems (networks of mechanical and...

Hey everyone. I'm hoping to get some advice from you guys. I am a senior studying Electrical Engineering. I am currently applying for graduate schools and for graduate fellowships (everything is mostly due mid-December). I plan to pursue a PhD. The only problem is, I'm not entirely sure which...

Hello, I have a general question regarding what is the best controller (PI, PD, etc.) to control the position of a mobile robot in order to follow a known path. The mobile robot at hand is a mechanism (a 4 bar linkage with its two base gliding on two parallel but not straight rails) and I...

I'm making a circuit to control the temperature of a peltier element, and I'm trying to figure out the cheapest way that will actually work over the long term, and not burn out my components fast. At first I wanted to just use standard power regulation to control the power to the element and...

Homework Statement I am given the transfer function Gp (s) = 1/(s+16) and I have to design a controller of the form Gc (s) = K(1 + 1/T*s) (which is a PID controller) To meet the following requirements: Maximum steady state error to a steadily changing desired position = 5% Maximum...

How is the compressor speed controlled in a car air conditioner, in compressors driven by engine moved belts? Is temperature controlled just by on/of of the solenoid clutch? Electric air conditioner (automotive), not driven by (directly) by engine, is widely used today? Another question, not...

Assalamualaikum... << Islamic translation by Moderators: "Peace be unto you" >> hello everyone... i just want to know how to control the light brightness for automatically... what i know...in manual we can use a dimmer to control the light brightness..(correct me if i wrong)... if anyone can...