neazoi
Advanced Member level 6
Hello,
I tried to test a magnetic core based on an article (http://meettechniek.info/passive/magnetic-hysteresis.html) and using a DSO with FFT http://www.home.agilent.com/en/pd-1...-1gsa-s-digitizing-oscilloscope?&cc=GR&lc=eng.
I used a variable sinewave generator for the experiment **broken link removed** that outputs about 4-5dbm
I am confused about the internal integrator function he mentions.
Does he refer to the XY function? (my DSO has a function called VERS to perform XY mode)
Or do you refer to the in the ingergator function? (my DSO has a function called INT to perform integration)
The problem is that when I switch to INT the only thing i see is a triangle like continuous waveform. On the other hand when I switch to XY mode, I can notice something that looks like the hysteresis curve so maybe he means XY mode is the suitable one?
In fact when I test some known square loop toroids (both ribbon and ferrite types), and when the frequency is low, I cannot notice any coercive force (**broken link removed**). As the frequency is raised above 300KHz, coercive force starts to appear and as the frequency goes to the MHz region, coercive force is huge. Is that normal, or am I doing something wrong?
I tried to test a magnetic core based on an article (http://meettechniek.info/passive/magnetic-hysteresis.html) and using a DSO with FFT http://www.home.agilent.com/en/pd-1...-1gsa-s-digitizing-oscilloscope?&cc=GR&lc=eng.
I used a variable sinewave generator for the experiment **broken link removed** that outputs about 4-5dbm
I am confused about the internal integrator function he mentions.
Does he refer to the XY function? (my DSO has a function called VERS to perform XY mode)
Or do you refer to the in the ingergator function? (my DSO has a function called INT to perform integration)
The problem is that when I switch to INT the only thing i see is a triangle like continuous waveform. On the other hand when I switch to XY mode, I can notice something that looks like the hysteresis curve so maybe he means XY mode is the suitable one?
In fact when I test some known square loop toroids (both ribbon and ferrite types), and when the frequency is low, I cannot notice any coercive force (**broken link removed**). As the frequency is raised above 300KHz, coercive force starts to appear and as the frequency goes to the MHz region, coercive force is huge. Is that normal, or am I doing something wrong?