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How many amps is the current?
You said in post #1 that you have to measure the power. Why not just measure the power directly and not bother with the power factor?
Modern oscilloscopes can do math on waveforms. Use the math function of your scope to multiply the instantaneous voltage and...
Is this a student problem or a work problem? What is the voltage involved? What is the current involved? Is something you will only do once, or is it a repeating problem?
The values of DF and 100kHz impedance are maximums. Typical values would be much less than those.
I don't have the exact same capacitor you are using, but I have something close. Using a Rubycon 1000 uF, 35V, VX series capacitor, here is a sweep of its DF and ESR versus frequency. The...
This is a "weighted moving average". If you don't include the word "weighted", people who read what you have written will assume that you mean that the weights are equal. That is what is commonly understood. If you just called your procedure a "weighted moving average" nobody could complain.
A running average (moving average): https://en.wikipedia.org/wiki/Moving_average
subjects the input signal to a very different inpulse response
than a low pass filter: https://en.wikipedia.org/wiki/Low-pass_filter
The universally understood meaning of "moving average" is that the incoming...
If this were true, then LCR meters wouldn't be able to measure the capacitance of electrolytic caps when there is zero applied DC voltage. But, in fact, LCR meters have no problem measuring them, and the measured value is usually within the large tolerance band that electrolytics have. It's...
Did you have a look at the link I gave you? https://dir.indiamart.com/chennai/impedance-analyzer.html
If this project is something you will only be doing once, an alternative to buying a suitable impedance analyzer is to rent one.
There are many meters that can do what you want, but they may cost more than your budget will allow.
https://dir.indiamart.com/chennai/impedance-analyzer.html
Is this a school project, or are you working for a company? How much money can you spend on a new meter?
They are real parts: https://ieeexplore.ieee.org/document/5770892#:~:text=Permanent%20magnet%20inductors%20(PMI)%20are%20useful%20in%20dc,for%20a%20given%20inductor%20current%20and%20inductance%20rating.
Neither is short circuit proof. The first one is very ordinary, laminations likely not even as good as M6 material. The second one has very low loss core material, probably M3 or equivalent.
There is considerable variation among transformers with respect to this behavior. Here is a scope capture of applied grid voltage (yellow), exciting current (green) and the instantaneous product of the two (purple?). This is from a rather ordinary 5 VA transformer from Radio Shack:
This one...
If an inductor consisting of a coil of wire were wound on a non-ferromagnetic material (the core), such as wood, plastic, glass, air, vacuum, the B-H loop wouldn't be a loop, but would be a straight line through the origin. Then the relation between B and H would be perfectly linear. Given a...
It's much worse than you think. If you had a transformer with Lpri = 10H, rewinding with HALF the turns would reduce Lpri to 2.5H, and the core would be pushed so far into saturation that the unloaded (but energized) exciting current would be so large that the transformer would likely catch on...
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