1
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>
我们刚刚购买了N9342C分析仪(作为老化的N1996A的替代品),部分原因在于它具有快速的零扫描扫描能力 - 它声称可以扫描到600ns - 我们用它来观察快速变化的单频信号。
然而,看起来N9342C的采样率固定为600ns,因此零扫描速率越快,水平分辨率就越差。 在10us扫描时,显示器包括大约十二个水平点,当设置为600ns扫描时,显示器仅包括由直线连接的两个点! 即使是旧的便宜又开朗的N1996A也更好。 有没有办法提高采样率或水平点数?编辑:cmkessell于2013年3月20日4:38 AM 以上来自于谷歌翻译 以下为原文 We've just acquired a N9342C analyzer (as a replacement for an aging N1996A) partly because of its fast zero span sweep capability - it claims to sweep down to 600ns - which we use to observe fast-changing single-frequency signals. However, it looks as if the N9342C's sample rate is fixed at 600ns, so as the zero span sweep rate gets faster the horizontal resolution deteriorates. At 10us sweep the display comprises about a dozen horizontal points and when set to 600ns sweep the display comprises just two points joined by a straight line! Even the old cheap-and-cheerful N1996A was better. Is there any way to increase the sample rate or number of horizontal points? Edited by: cmkessell on Mar 20, 2013 4:38 AM |
|
相关推荐
3个回答
|
|
您好,正如您在N9342C上观察到的那样,当您增加扫描时间时,样本数(和水平点)将会增加。
确认扫描时间后,无法手动调整样品编号。 这是正确的,零跨度下的扫描时间将降至600 ns,但样本数最少。 无论如何,N9342C将具有比N9342C更好的扫描速度。 它能满足您的测试要求吗? 以上来自于谷歌翻译 以下为原文 Hello, As you have observed on the N9342C, when you increase the sweep time, the sample number(and horizontal points) will increase. The sample number can't be manually adjusted when you confirmed the sweep time. That's right the sweep time under zero span will down to 600 ns, but the the sample number is the least. Anyhow, N9342C will have better sweep speed than N9342C. Can it meet your test requirement? |
|
|
|
潇枫2016 发表于 2019-6-25 08:26 嗨,非常感谢您的快速反应。 N9342C令人失望,并不能满足我们的要求。 虽然理论上N9342C的扫描速度可能比N1996A(扫描时间最短为1us)略快,但N1996A更好,因为即使在最快的扫描时,它仍然会使用大量的点来提供良好的波形分辨率。 相比之下,一旦N9342C的扫描时间接近此速度,显示的波形就变得非常有角度,因为它只包含以直线连接的600ns间隔的几个点! 您能否建议任何其他可在零扫宽模式下提供良好性能的分析仪型号? 以上来自于谷歌翻译 以下为原文 Hi, Many thanks for the quick response. The N9342C is disappointing, and doesn't really meet our requirement. Although the N9342C can theoretically sweep slightly faster than the N1996A (which has a minimum sweep time of 1us), the N1996A is better because even at the fastest sweep it still uses a lot of points to provide good waveform resolution. In contrast once the sweep time of the N9342C approaches this speed the displayed waveform becomes very angular because it comprises just a few points at 600ns intervals joined by straight lines! Can you suggest any other analyzer models that might provide good performance in zero span mode? |
|
|
|
huzp_123 发表于 2019-6-25 08:45 嗨,你需要手持式分析仪吗? 或者您可以使用台式(非便携式)信号分析仪吗? 根据您的建议,X系列分析仪(例如N9010A EXA)可以显示低至1 us的样品,这些样品取决于采样率。 在启用40 MHz分析带宽选项的I / Q分析仪模式下(选项B40),可以使用51个样本查看1 us。 使用标准带宽选项B25,您可以查看32个样本。 http://www.agilent.com/find/EXA http://www.agilent.com/find/EXA_specifications E440xB ESA系列分析仪有两个选项,涵盖低至50(选项AYX)或25( 选项B7D)nsec。 限制再次是采样率,因此是扫描点的数量。 对于1美元的观点,ESA最多可以捕获41个采样点。 为了与之前的分析进行比较,对于600 ns的间隔,ESA最多可以捕获25个样本。 http://www.agilent.com/find/ESA - 查看规格指南,扫描时间部分ESA也可作为便携式配置提供。 如果您需要非常快的采样率,您可能需要考虑使用高带宽示波器。 最诚挚的问候,斯科特 以上来自于谷歌翻译 以下为原文 Hi, Do you need a handheld analyzer? Or can you use a desktop (non-portable) signal analyzer? The X-Series analyzers (such as the N9010A EXA) can display down to 1 us with a number of samples that is dependent on the sample rate, as you suggested. In I/Q analyzer mode with 40 MHz of analysis bandwidth option enabled (option B40), it is possible to view 1 us with 51 samples. With the standard bandwidth option B25, you can view 32 samples. http://www.agilent.com/find/EXA http://www.agilent.com/find/EXA_specifications The E440xB ESA series analyzers have two options that cover fast zero span sweeps down to 50 (option AYX) or 25 (option B7D) nsec. The limitation is once again the sample rate and therefore the number of sweep points. For a 1 us view, the ESA can capture up to 41 sample points. To compare with your previous analysis, for a 600 ns interval, the ESA can capture up to 25 samples. http://www.agilent.com/find/ESA - check out the specifications guide, section on sweep time The ESA is also available as a portable configuration. If you need very fast sampling rates, you may want to consider a high bandwidth oscilloscope. Best Regards, Scott |
|
|
|
只有小组成员才能发言,加入小组>>
1283 浏览 0 评论
2371 浏览 1 评论
2189 浏览 1 评论
2062 浏览 5 评论
2946 浏览 3 评论
1105浏览 1评论
关于Keysight x1149 Boundary Scan Analyzer
752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
923浏览 0评论
1285浏览 0评论
小黑屋| 手机版| Archiver| 德赢Vwin官网 ( 湘ICP备2023018690号 )
GMT+8, 2024-12-23 03:56 , Processed in 1.875297 second(s), Total 52, Slave 46 queries .
Powered by 德赢Vwin官网 网
© 2015 bbs.elecfans.com
关注我们的微信
下载发烧友APP
德赢Vwin官网 观察
版权所有 © 湖南华秋数字科技有限公司
德赢Vwin官网 (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