QPLCR new cheap LCR tweezers - Page 1
Forum section: electronics / testgear

author: slavoy
author_rank: Regular Contributor
timestamp: July 31, 2024, 05:37:30 am
content: I dont know if its new for sure, seen it first time today it in 12voltvids video.https://www.banggood.com/3S-QPL-Mini-LCR-Tester-Bridge-Tweezers-with-1_14-inch-Display-100Hz-10kHz-Operating-Frequency-Measures-Capacitance-Inductance-and-Resistance-Long-lasting-Battery-for-Accurate-Measurements-p-2016310.htmlQuoteNot all menu is in english so far, looking good for the price. Fast and somewhat accurate. I hope the firmware is upgradeable.

author: thm_w
author_rank: Super Contributor
timestamp: July 31, 2024, 11:02:55 pm
content: They look better than the Zoyi from your other thread:https://www.eevblog.com/forum/testgear/zoyi-zt-md1-new-lcr-tweezers/Faster update rate, etc.With these companies its much more likely they release the product and then never update the firmware again.btw can you edit your title to 10kHz, not 100kHz

author: indman
author_rank: Super Contributor
timestamp: August 01, 2024, 09:19:59 am
content: Quote from: thm_w on July 31, 2024, 11:02:55 pmI don’t agree, Zoyi has higher resolution for the Q, D parameters. Another question is how much you can trust these readings from both tweezers? This needs to be compared with other similar devices.

author: uncle_sem
author_rank: Contributor
timestamp: August 11, 2024, 05:13:54 pm
content: Has anyone figured out the Chinese menu? Or maybe there is a new firmware with English?

author: tigrr
author_rank: Contributor
timestamp: November 28, 2024, 11:23:09 pm
content: QPLCR User Manual- PDF, 1.58 Mbhttps://mega.nz/file/I5UABC6C#jVBlZjjKRdjQ-qyR2wumsVWKOKlYn0bU0DAoV51bvQk

author: VintageHenk
author_rank: Contributor
timestamp: December 01, 2024, 02:53:02 am
content: I was quite intrigued by the 100kHz QPLINK LCR-S1 and couldn't help myself but to go on the Chinese internet and try to get some clarity on what this thing is. Info is pretty scarce - the images in the AliExpress ads also appear in this video on Bilibili (https://www.bilibili.com/video/BV14usaeWE1g/), and there is some evidence of it on Douyin (https://v.douyin.com/iD9PoREt/, also of the older style QPLCRhttps://v.douyin.com/iD95YwtP/). QPLCR appears to be an open source Chinese adaptation of a Russian LCR tweezers project - schematics are available (http://www.crystalradio.cn/thread-1996634-1-1.htmlhttps://oshwhub.com/moonyblue/dian-qiao-nie-zi). There is also uRLC, which seems to be a more direct adaptation of the Russian project - this webpage has a lot of info and links, also to the original Russian forum threads (https://oldgerman.github.io/845419ff/). Now for the QPLINK - I think it is a Chinese version of the newer Russian nRCL project, which is able to go up to even 200kHz (https://oldgerman.github.io/1eb159fd/https://vrtp.ru/index.php?showtopic=33311&st=0). So lot of question marks still, but it's at least something

author: tigrr
author_rank: Contributor
timestamp: December 03, 2024, 09:55:22 pm
content: Quote from: VintageHenk on December 01, 2024, 02:53:02 amAbsolutely right. There are no specifics yet to make a comparison....In particular, there is nothing about the tweezersQPLINK LCR-1Syet - no manual, no firmware, no manufacturer.Why this is so is absolutely unclear. Why is it always a secret and no-name on Aliexpress???