[问答]

8590A升级/转换可提高其频率稳定性吗？

问答对人有帮助，内容完整，我也想知道答案 0 是否可以升级8590A以提高其频率稳定性？有没有人这样做过？根据我的理解，第一个LO是开环的，所以它会漂移。我的猜测是，它与高端频谱分析仪共享许多组件，所以也许可以换掉第一个LO和相关的内容？当然，还有前面板控制问题，因此可能需要更多。或者，是否可以通过外部频率控制来增强第一个LO以稳定它？同样，前面板控制将面临挑战。如果可以解码中心频率和跨度输入，我可以想象一些可用于将其锁定到稳定参考的技术。我知道这听起来很疯狂，但也许，也许...... 以上来自于谷歌翻译以下为原文 Is it possible to upgrade an 8590A to improve its frequency stability? Has anyone done anything like that? From what I understand, the first LO is open loop, so it will drift. My guess is that it shares many components from higher end spectrum analyzers, so maybe the first LO and related guts can be swapped out? Of course, there are front panel control issues, so it will likely require quite a bit more. Alternatively, would it be possible to augment the first LO with external frequency control to stabilize it? Again, there will be challenges with front panel control. If it was possible to decode the center frequency and span input, I can picture a number of techniques that could be used to lock it to a stable reference. I know it sounds crazy, but maybe, just maybe... 0
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答案对人有帮助，有参考价值 0 虽然一切皆有可能......我可以告诉你，8590A与当时的其他HP频谱分析仪并没有太大的共同之处。即使是8591A或8590L（它们都是内部锁定的）内部几乎完全不同，因此它们的任何部件都不能直接用于增加8590A的第一LO稳定性。如果您有8590B，那么您可以使用8591A部件。麦克风以上来自于谷歌翻译以下为原文 While anything is possible... I can tell you that the 8590A does not share much of anything with other HP spectrum analyzers of its day. Even the 8591A or 8590L (which were both countlocked) were almost completely different inside, so none of their parts could be directly used to increase the 1st LO stability of an 8590A. If you had an 8590B then you could use the 8591A parts. Mike

2018-10-30 17:25:04 评论举报李健

答案对人有帮助，有参考价值 0 有一种名为“X-Lock”的产品，我曾使用模拟，可变频率振荡器，为输出提供坚如磐石的稳定性。模拟电路最初每小时漂移超过100赫兹，并且稳定时间超过3小时。现在它在开启几秒钟内稳定到几Hz。我不知道8590A中使用了什么电路，所以我不知道X-Lock是否适合这个应用程序，但你可能想看看它：http：//www.cumbriadesigns.co。 uk / x-lock.htm它可能是解决这个问题的方法。以上来自于谷歌翻译以下为原文 There is a product called "X-Lock" that I have used with an analog, variable-frequency oscillator that provided rock-solid stability to the output. The analog circuit originally drifted in excess of 100 Hz per hour and didn't stabilize for more than 3 hours. Now it is stable to a few Hz within seconds of switch on. I don't know what circuit is used in the 8590A, so I don't know if the X-Lock could be adapted for this application, but you might want to check it out: http://www.cumbriadesigns.co.uk/x-lock.htm It is possible it could be a solution to this problem.

2018-10-30 17:43:16 评论举报张玉兰