Products > Test Equipment
Sensitive LCR Meter Measurements
jonpaul:
See HP Impedance Measurement Handbook of 1980s.
https://www.keysight.com/us/en/assets/7018-06840/application-notes/5950-3000.pdf
Depeneong on the Z range either 4 term (kelvin) or guarded measurement is used, but not both at one time.
J
mawyatt:
--- Quote from: nctnico on July 25, 2024, 09:43:39 pm ---Did you see this thread: https://www.eevblog.com/forum/testgear/zurich-instruments-mfia-impedance-analyzer-(z-1m-1t)-review-teardown/ ? There could be some interesting information to be obtained from the review and teardown.
--- End quote ---
Did not see this until now, that's a really nice instrument, wish we could afford such!!
Thanks for the note :-+
Best,
mawyatt:
--- Quote from: jonpaul on July 25, 2024, 10:11:11 pm ---See HP Impedance Measurement Handbook of 1980s.
https://www.keysight.com/us/en/assets/7018-06840/application-notes/5950-3000.pdf
Depeneong on the Z range either 4 term (kelvin) or guarded measurement is used, but not both at one time.
J
--- End quote ---
Actually the technique shown in OP by Hioki works quite well indeed with Kelvin Clips and using the Guard Plate. We did so with Hioki IM3536, Tonghui TH26011CS Kelvin Clips and PCBrite Conductive plate as mentioned.
We really should look into getting some Kelvin Clips rated higher than the TH26011CS tho, they are rated only to 100KHz.
Best,
Martin72:
I don't know how well Tonghui accessories are available in the states, but Sourcetronic ships worldwide:
https://www.sourcetronic.com/shop/en/kelvin-clip-terminal-st26011bs.html
Rated up to 5Mhz(pic shows the 300kHz version).
KungFuJosh:
--- Quote from: Martin72 on July 26, 2024, 10:06:40 pm ---I don't know how well Tonghui accessories are available in the states, but Sourcetronic ships worldwide:
https://www.sourcetronic.com/shop/en/kelvin-clip-terminal-st26011bs.html
Rated up to 5Mhz(pic shows the 300kHz version).
--- End quote ---
I would ask them to confirm that. Every TH version that looks like that, including the same model number as the URL maxes out at 100kHz.
https://www.tonghui.com.cn/en/product_list_192.html
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