完善资料让更多小伙伴认识你,还能领取20积分哦, 立即完善>
亲爱的,当我们连接到示波器的地面时,我们在接收地信号(0V)时遇到了麻烦。
出于某种原因,当我们将示波器连接到内部产生的方波信号和示波器接地时,地面似乎漂浮在大约20mV。 此外,即使示波器接地连接到外部电源地,地电平也不会改变。 可能是什么问题? 以上来自于谷歌翻译 以下为原文 Dear all, We are having trouble in getting a ground signal (0V) when we connect to the ground on the scope. For some reason when we connect the scope to the internally generated square wave signal and to the scope ground, the ground seems to be floating at about 20mV. In addition the ground level doesn't change even if the scope ground is connected to an external power-supply ground. What could be the issue? |
|
相关推荐
2个回答
|
|
第一个问题,我之前应该问过:你最后一次对示波器进行用户校准是什么时候?
我不知道6000系列的过程,但它可能会解决这个问题。 我想弄清楚偏移的位置。 您使用示波器探头吗? 如果是这样,忘记连接到示波器接地,将探头接地连接到探头信号时会看到什么? 使用不同的示波器探头,您会得到相同的结果吗? 如果您取下探头,并使用短路(如果以上所有显示一致的结果,那么问题就在范围内。如果用户校准周期没有修复它,那么您需要修理.Al 以上来自于谷歌翻译 以下为原文 First question, which I should have asked before: When was the last time you did a user calibration on the scope? I don't know the process for the 6000 series, but it might take care of the problem. I'm trying to figure out where the offset is. Are you using a scope probe? If so, forget connecting to the scope ground, what do you see when you connect the probe ground to the probe signal? Do you get the same results with different scope probes? If you take off the probe, and use a short (<10 cm) piece of wire to carefully short the inner conductor of the channel (signal) to the outer ring (ground), what do you see? If all of the above show consistent results, then the problem is in the scope. If a user calibration cycle doesn't fix it, then you need a repair. Al |
|
|
|
nvywyerwer 发表于 2019-3-28 17:42 嗨Al,感谢您的回复。 仪器长时间未校准。 我将执行用户校准,看看它是否得到修复。 谢谢。 以上来自于谷歌翻译 以下为原文 Hi Al, Thanks for your response. The instrument has not been calibrated in a long time. I will perform the user calibration and see if it gets fixed. Thanks. |
|
|
|
只有小组成员才能发言,加入小组>>
1229 浏览 0 评论
2350 浏览 1 评论
2160 浏览 1 评论
2026 浏览 5 评论
2908 浏览 3 评论
973浏览 1评论
关于Keysight x1149 Boundary Scan Analyzer
707浏览 0评论
N5230C用“CALC:MARK:BWID?”获取Bwid,Cent,Q,Loss失败,请问大佬们怎么解决呀
808浏览 0评论
1230浏览 0评论
小黑屋| 手机版| Archiver| 电子发烧友 ( 湘ICP备2023018690号 )
GMT+8, 2024-11-25 17:04 , Processed in 1.219572 second(s), Total 78, Slave 61 queries .
Powered by 电子发烧友网
© 2015 bbs.elecfans.com
关注我们的微信
下载发烧友APP
电子发烧友观察
版权所有 © 湖南华秋数字科技有限公司
电子发烧友 (电路图) 湘公网安备 43011202000918 号 电信与信息服务业务经营许可证:合字B2-20210191 工商网监 湘ICP备2023018690号