EEVblog Electronics Community Forum
Products => Test Equipment => Topic started by: Faringdon on March 24, 2023, 09:08:22 am
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Hi,
Do you know what source resistance to choose..its either 30R, 50R, or 100R?
Also, what does the "L force" input mean?
Also, "H force"?
I measured some inductors but its well inaccurate.
I did all the opan and short calibration/initialisation steps.
LCR6200
https://www.farnell.com/datasheets/2267000.pdf (https://www.farnell.com/datasheets/2267000.pdf)
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Do you work with kelvin probes ? show photos of your probes
the "L" side will touch together on one side on the part to be measured
Same for the "H" side
https://www.allaboutcircuits.com/textbook/direct-current/chpt-8/kelvin-resistance-measurement/ (https://www.allaboutcircuits.com/textbook/direct-current/chpt-8/kelvin-resistance-measurement/)
Unless some damages happened ?
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I am getting a Lsec measurement of 7.5uH...and primary of 480uH.
Thats 8:1 and it surely cant be that much in this design.
I am wondering if the intercoil capacitance is making the sec coil inductance look much lower than it really is.?
The Sec coil, with the "Ls-Q" measurement comes out as 7.5uH and Q=12.
Q=12 sounds high, i am wondering if there is loads of intercoil capacitance and the inductance reading is thus coming out low.