Control Definition and 960 Threads

Was given an assignment to create an AI that can control the music's volume by using fuzzy membership function (slightly soft, soft, loud, very loud) via voice control but the problem is we need to implement hardware into the project because my course is Electronic Engineering. So far, I've...

Hi guys, I'm developing a BLDC motor controller with load. I've bought a Maxon E40 motor . But some things i can't figure out: I want to control position, speed and current (torque). I use PID controller to do it. In the closed loop system the output of the speed controller should be input...

Hi, I need help. How can I redirect/bend magnetic fields such that it will go in one direction instead of all around. That is going in a straight path instead of into multiple directions. :smile:

:rolleyes: hey guys, I'm new in the field and I'm running into this basic problem that's giving a headache. I got a pneumatic slide that's supposed to go up and down. It's controlled by a double sol, 2 position (I'm pretty sure that's the type of valve on the machine now). The valve power is...

hey i m kinda new at making radio controls... just made a simple RC with a 2 bit Tx- Rx kit that i got from a local shop... all my robots are wired... so i want to move on to a proper radio control(coz they don't teach RC makin in mechanical engineering:cry: :cry: ) ... can anyone suggest me...

What do we actually have control over?

As much as I hate starting a thread about a youtube video, I think this one is important I had no idea stability control was that good; this guy was able to drive on sheet ice. My car does not have stability control or even a limited slip differential, so my left turns in winter are a lot...

Hi all Iam doing my master's degree. I want help regarding implementing Automatic climate control. I found one in MATLAB but it doesn't meet my specifications. Can anyone help giving me any idea or providing equations regarding AirConditioner and Heater.

Hey all I am trying to sort through data for controlling a unipolar stepper motor with a microcontroller. I have done this before but the hardware was already in place on a development board. What I need is a way to drive a 12V Unipolar stepper with a microcontroller. I have found a number...

hello i am a mech engg student, i have few doubts in fluid dynamics and thermal engg subjects.. i would like to be cleared of them by this discussion forums could anyone please explain the principle of flow control using valves...waiting for ...

http://mediamatters.org/altercation/200701300005 Gimme a break this means political appointees will now have influence over all government agencies. Policy and what the public is told will be dictated by novices instead of scientists and experts in a field. We had a thread on this same...

Hi all, Just joined and have a question I'm hoping someone can help me with. I'm putting a Chrysler 300 M electroluminescent gauge set in my 2000 Intrepid (backlit gauges). The problem is that I have to swap the faces onto the original cluster electrics in order for everything to work...

navier-stokes smoothness problem almost solved Penny Smith has made progress with showing that smooth conditions exist for all time in a domain for the Navier Stokes equations http://notes.dpdx.net/2006/10/06/penny-smiths-proof-on-the-navier-stokes-equations/ However a flaw was found in the...

Hey everyone, Just something for you to think about, My school has just started a project do build an electric power car, (for more info please look at our website http://greenpower.aldenham.com ) and we have come up against the problem of how to regulate the power going to the motor. We are...

Hi, I am currently choosing my specialisation modules. May i know what are the most important aspects that an electrical engineer should know with regards to "control systems"? Tks :smile:

This will amaze you :bugeye: and make you laugh. Sitting in a chair raise your right foot then move it in a clockwise direction. Then with your right hand make a 6 in the air with your finger. You can't keep your foot from going counter-clockwise. How long will you do it until you give up...

For my leaving cert project (Ireland) I have to build a table tennis ball serving machine. I'm settling on a design that uses two spinning rotors to fire the ball out as it passes between them, but I'm wondering is there any way to automatically adjust the speed going to one of the rotors (each...

Relevant question An energy flow control system is one where electrical signals are used to control the flow of energy. quite often electrical energy. A modern example of one such system is the manual control of the speed of a sewing machine motor by way of a foot opearated variable...

All very good, but would it not be an idea to have a mechanical back up, that if all else fails the pilot had some control, the mechanical system could control servo tabs that drive the main control surfaces, surly not very expensive or heavy.

hi alll! just a quick one. You know when you design a controller - you go and plot the open loop transmission, L(jw) on a nichols plot, where L(jw) = C(jw)H(jw) P(jw) where P and C are the plant and controller respectively. You then 'manipulate' this plot (i.e. vary your controller) until...

Hi, I am doing a small project on the "construction and control of a modern tensile testing machine" and am a bit unsure as to where to start on this! Does anyone have any ideas as to where I could find information on this subject, or know anything that might be helpful? Thanks, Chris

Greetings mega-brains! :biggrin: A delta wing configuration, because it does not have a separation between the main wing and the horizontal tail which holds the pitch control surface(s), has a natural aerodynamic, temporary control reversal when initiating a pitch maneuver from a...

hi everyone.. this is my first post :smile: im investigating a catapult i would like to know how to control an angle of a catapult to get maximum distance ? thanks ..

hey guys... Say i have a second order system. From this i can establish a peak time, a settling time, and overshoot percentage... but what is my response time - is the settling time? Also is there some sort of rule of thumb for decreseing the response time?? like say, for example...

hey can you find the phase/gain margin of unstable system. I am asked for the phase margin of this system, but the nyquist plot reveals that -1 is encicled verfiying that the system is unstable,.. how can you get a phase margin of an unstable system?

hey guys. this has to do with determining the phase and gain margins of a system. i've read and understood the follwing: "To find GM, first find the phase crossover frequency, wGM. This is the frequency where the phase curve passes through -180. Get the magnitude at that frequency...

This is a field that is immensely interesting to me. Right now I am a dual major in EE and physics and I am taking a control systems course right now, with lab. I like it so much that I might want to go into this field as a profession, and I am contemplating taking a few more control classes...

Hey all, I am currently trying to figure out how I can control the direction of a laser beam. Galvos are widely used in order to electronically change the direction of the beam. Although, I was hoping to find a way to do this without mechanical parts. There are two ways I have looked at...

Hello all, Please forgive me if this is the incorrect place to ask this question, yet I happen to own an Ungar 4024 solder/desolder station that I would like to use for PCB work. While the system uses an analog (slide) control for temperature variation, the numbers listed on the slide are...

The anti-science school board took some pretty nasty hits from last night's primaries. Pro-science incumbent Janet Waugh kept her seat, while Connie Morris and Iris Van Meter's replacement (son-in-law Brad Patzer) were both eliminated. 2 anti-science board members did make it to the November...

We have one of these Dayton single phase AC motors: http://www.grainger.com/Grainger/wwg/itemDetailsRender.shtml?xi=xi&ItemId=1611576952 And I am wanting to control the speed of the motor. I didn't take very many power classes but from what I remember the motor speed is dependent on the input...

Hi everyone, I need to do an experiment at home that tests different environmetnal conditions that facilitate corrosion of stainless steel and mild steel screws. I have 20 screws (10 stainless and 10 mild steel screws). Each screw will be in a separate container. One pair of srews will have...

I would like to ask for some help regarding the circuit design of this motor...

Currently I am using a pc to drive a stepper motor through a xylotex-brand motor controller. The problem is the PC's time clock just doesn't allow for steady movement. What I need is a specific controller to handle the signal to the motor. All I want the PC to do is send a command to the...

How would one use a while loop in the C programmin language to ask the user if they want to terminate the program, or execute it again. You could say press 1 to terminate and press 2 to execute again. How would someone set that up with a while loop?

Our government is supposed to be a representative body - that is, we citizens are not given the right to participate in a true democracy, but we are allowed to elect representatives who we expect to vote on our behalf. This system has been broken for a very long time. It seems like no matter...

Had a bit of a dispute with a friend over the possibility of a circuit and what it could do... I could be wrong, but I don't see how this is possible - He claims that it's possible to wire a circuit containing three switches and a light, and have it so that any of the three switches can turn...

Has anyone here happened to design a remote control... I am just into it...so i am looking for information to understand how can we go about doing it..

I have a few Control System questions: I'm looking for a simple explanation of when each of these are used... whenever I read about them, I just can't remember which is used for what; this is probably because the book I'm using explains it in hard to understand terms. 1) When do you use a...

Just like in the title, I'm looking for some software to make sounds in music much louder. I have a few nice sounds, but they're too low, even when I manipulate the volume in speakers it gets tiny louder but still low, is there any software that let's me do such thing? Thanks

I am having a problem with plotting Bode plots in Matlab. We are required to plot a e^(-sT) (simple time shift) as a Bode plot. The "bode" function in Matlab requires either a TF, ZPK, SS, or FRD system as its first input. I cannot seem to find out how to plot the exponential. I can easily plot...

I'm building a spacecraft attitude control simulation and I'm looking for some references to help me build a realistic mathematical model. Could someone please help me? I'm testing an AI library I built and that is requiring a lot of research in itself. Thanks for your time! Jeff

Well there isn't a topic on Linux tutorials, that I could find, so here's one - Linux Advanced Routing & Traffic Control HOWTO http://www.tldp.org/HOWTO/Adv-Routing-HOWTO/index.html Hope some find it useful. Please add others.

Hello there, I just got a question in control systems that i need help on... Hopefully, somebody genius on this forum can help me out.. If F(s) = 1 / (5s + 1) 1) Determine the DC gains of the open loop system and the closed loop system 2) Determine the time constant of the open loop...

I have been reading about the research being poured into the development of a male birth control pill. The articles I read were dated in late 2004 and mid 2005. I was wondering if anyone has any more recent news about this product (when it's scheduled to come to market, etc...)? -Zach

Hi all! I started my first control engineering course this semester. There are some terms that confused me. I am now learning closed-loop systems. And the lecturer was discussing the reduced sensiticity to process disturbance and load variation of a closed-loop system when compared to a...

http://www.abqtrib.com/albq/nw_national/article/0,2564,ALBQ_19860_4475139,00.html This is simply beyond belief!

I usually just turn on the lawn sprinklers to rid my yard of pesky teenagers, but this looks fun, too. http://news.bbc.co.uk/2/hi/uk_news/england/staffordshire/4715526.stm

Hello, I am making a lab investigating friction of an object and I just need a "method" of controlling acceleration in the experiment so the object travels at a constant velocity. This is really the only way I can think of having the experiment work out correctly so I really need help with this...

I would be very happy if there is anyone that knows a way to control the inkjet cartige with pulse signals instead of the computer. I want to be able to "shoot" ink droplets from all the nozzles at the same time. I need to know how to operate each of the pizo crystals, and then to operate them...