Does anyone know how those magnetic dial guage stands work, the sort where you push a button or turn a knob to activate the magnetic force?
Thanks
finnigan
This is quite an interesting parameter estimation algorithm.
http://www.energy.sintef.no/produkt/VECTFIT/index.asp
It certainly fitted a few test cases I gave it at any rate. And it's free and written in Matlab. I converted it to Scilab tho' as thats free as well, unlike matlab :-) ....
Sorry it was a typo in my first post, I meant "Phantom power"
Here is an introduction to ICP power supplies. If you would have a look, I would be very grateful.
http://www.pcb.com/techsupport/tech_signal.php
Thanks again
Al
Thanks,
Perhaps I explained very badly, The ICP power supply, besides supplying the power to sensors also recieves the signal from the sensor and amplifies it to line level. would your suggestion of building a linear regulator still work in this case?
Al
Hello,
I have some panasonic microphone capsules (output impedance 2k) that should run on a 10 volt 0.5 mA pantom power supply, how could I use the ICP power supply that I already have, to power the microphone capsules? The ICP power supply is 24 volt, 4 mA constant current. It is designed for...
google "octave" and "scilab" . Both are freeware math software with fft functions. Ocvtave is a great Matlab clone. possible problem with the excel fft is that it's limited to 4096 points.
Best regards
finnigan
Hi,
No, I never did use the Diamond toolbox as I don't have Matlab! I use GNU octave which is a freeware matlab clone. Unfortunately Octave doesn't support 3d matrices which are required in the Diamond toolbox. What I basically did was rewrite the GRFP Mfiles to work in Octave, I found however...
The denominator orthogonal poly coeffs are not the same for each frf from the structure. You have to calculate for the normal denominator coeffs which are the same for each frf.
p p
SUM[Uk]^2{B} = SUM[Uk]{Vk}
k=1 k=1
where
[Uk] = [I-[Xk]'[Xk]][BMk]^-1
{Vk} =...
From all of the shareware spectrun analysers I've tried (and I think I've probably tried them all.....) Atspec is by far the best. It's available from
www.taquis.com/atspec.htm
Thanks for the help MikeyP. I followed your suggestion debugging the code using "whos".
The problem with the memory is the following lines in function rpcoeffs see below
SOLROW is a complex matrix of size 11520 rows * 430 cols and WCUM is size 11520 rows * 1 cols
this eats about 180Mb...
The following code is part of a program I've cobbled together to extract modal parameters from multiple frf's, it extracts the polynomial coeffiients. It's adapted from the diamond modal toolbox and I'm running it in GNU Octave which is an open source matlab clone.
The problem I'm having is...
Chamberlin, the ontime code is a seperate macro which could be in the same module as the one which you want to run at 6:00AM, as shown below.
Sub ontime()
Application.OnTime TimeValue("6:00:00"), "Test"
End sub
Sub Test()
Range("A1").Value = 10
End Sub
I...
Hey ElectricPete, it's not the first thread thats gone missing. I've posted to three other threads in the past months which then mysteriously disapeared, I was beginning to think I was a jynx. although other threads I've posted to haven't disappeared. One of the threads did reappear tho' about a...
You need to use the OnTime method
For example the following code executes the macro test in the ThisWorkbook code module of the book1 workbook at 6:00am
Application.OnTime TimeValue("6:00 AM"),_
"D:excel\book1.xls!ThisWorkbook.test"
best regards
