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| Sensitive LCR Meter Measurements |
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| Martin72:
After they hadn't contacted me for 3 weeks, they called me today. It was an interesting conversation... They all had the same bandwidth of 300kHz. I was like ah OK, and what about data sheets? They didn't really go into that, instead they told me that they had looked at Keysight, among others, where it was also only 300kHz.... :-DD I think they didn't get any information from the actual manufacturer. It will be some OEM stuff where they order their name on it. Since the R&S adapters/cables look exactly the same, I would be inclined to ask them for data sheets. ;) |
| KungFuJosh:
--- Quote from: Martin72 on August 20, 2024, 07:54:34 pm ---Since the R&S adapters/cables look exactly the same, I would be inclined to ask them for data sheets. ;) --- End quote --- They do look identical. https://www.rohde-schwarz.com/us/knowledge-center/videos/r-s-lcx-test-fixtures-video-detailpage_251220-1386305.html However, I found nothing else on their website except for that video. ETA: Here's the only "datasheet" I could find. More like sales brochure though: https://assets.testequity.com/te1/Documents/pdf/rs/lcx_datasheet_en_3609-8309-32_v0100.pdf |
| mawyatt:
All those R&S fixtures look like Tonghui. Wouldn't be surprised if R&S LCR Meters are from Tonghui, probably similar to some TH types but with different front panels and maybe different firmware with same PCBs?? Best, |
| mawyatt:
--- Quote from: Martin72 on August 20, 2024, 06:49:15 pm --- --- Quote from: Martin72 on July 27, 2024, 10:31:16 pm ---I have now written to them and asked for a data sheet, together with an explanation as to why. The things look so similar, but it may well be that the cables from Sourcetronic do not come from TongHui or are “different” and are manufactured by TongHui for Sourcetronic. We will know soon. --- End quote --- ST26011A 300kHz ST26011B 5Mhz 300kHz ST26011C 300kHz The website will be changed accordingly. But there will still be no data sheets. ;) --- End quote --- Not surprised ;) Personally don't think these types of Kelvin Clips are good enough for repeatable results at 300KHz, certainly not the cheap clips you often see with lesser instruments!! Best, |
| Martin72:
I think so too. The 5Mhz was simply utopian for this type of line. With fixtures you can easily outperform this bandwidth. Oh yes, the fixture from Sourcetronic is on its way. |
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