Hi all,
How do anti siphon valves work? I'm told that you use these to shut-off a flow, when the flow is higher than normal.
I'm googling a schematic to see how these work, but luck so far.
I've come across posts in other forums where people have used anti-siphon valves on a fuel tank, with...
I have just started in the industry with little Engineering experience and it's also been a while since college.
Could anyone recommend a good, practical book(s) that covers fundamentals of PE, from well head to the sales pipe? Basically looking to get the lingo and refresh on the basics on...
Hello all,
I basically would like a rectangle box (such as process block) with connection nodes along the edges. At the bottom edge (or one of the edges), as opposed to a single connection node (as is the case with process block/shape), I would like to separate connection nodes.
This is so...
Hello All,
has anyone come across any tools (be it an extension in Word or external program) to draw 2-D engineering diagrams (eg gears, free body diagrams.... the kind you hand sketch) easily and quickly. Atm I'm using stuff in Word and Paint or projected views from 3d drawing... pain at times...
I would be comparing them at design stage not during repairs and so on... Just wondering if there's any "mysterious" cons to a 1097 apart from the obvious factors (knife edging, load... etc).I'm thinking interms of fatigue performance...etc.
On the subject of knife edging... as a general rule...
hello cswilson
the gains i was referring to were the quadrature and direct PI controller gains in the algorithm.
supply is a constant voltage source.
>> just assume your phase voltage command number results in a proportional voltage.
is the resultant volatge then Vdc*(commanded...
oh ok.. let me get this right..
So in a real PWM scheme command voltage computed will then be converted to percentage of duty cycle by another algorithm.. so say at the sampling instant of PWM, if (commanded voltage/rail voltage)=0.8, then the duty cycle for that period is 80%.
This gives a...
hey thanks for replying
Now i dont want to model the high frequency switching. thus i'm unable to find %on time.
http://i2.photobucket.com/albums/y50/hondaAudio/motor.jpg
i belive this describes the modulating. now what i would like to find out is the relationship between command signal and...
Hi
With the clark/park control strategy for a permanent magnet motor, what is the relationship between the commanded phase voltage to PWM and applied phase voltage. is that a simple gain of (Amp of Railvoltage/Amp of pulse)? thanks
