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我通过GPIB使用VEE pro来控制双电源和PSA。
我想优化测量,使其快速可靠。软件:VEE pro。 7.51设备:Agilent E3646A双输出直流电源安捷伦PSA E4440AFlow(1个周期,完全几个周期,双电源输出已更改):1。 设置双电源输出所需电压时间延迟2。 将PSA显示设置为OFF,指定的频率范围,点数3。 将PSA设置为“Single Sweep”time Delay4。 设置Marker1,将VBW / RBW设置为10,PSA测量中心频率及其Y值Time Delay5。 设置Marker2,将VBW / RBW设置为0.1,PSA测量比中心频率大100 kHz的频率点的相位噪声。时间延迟6。 将PSA设置回“连续扫描”7。 清除PSA标记如果我为这些延迟中的每一个设置了足够的时间延迟,例如3秒,则测量进行得非常顺利。 但消耗的时间确实很多。 然后我缩短了延迟,结果出错了。 像标记1或2的Y值没有正确测量。我的问题是如何设置优化的时间延迟,以便我可以加快测量到最大。 我试图搜索PSA和双电源的相应手册,但未能找到有用的信息。我应该尝试手动更改每个延迟时间,或者我应该参考一些手册,这可能表明PSA等待的最短时间 获取数据?我们非常感谢您的帮助。 以上来自于谷歌翻译 以下为原文 I am using the VEE pro via the GPIB to control the dual power supplies and PSA. I want to optimize the measurement to make it speedy and reliable. Software: VEE pro ver. 7.51 Equipments: Agilent E3646A Dual Output DC Power Supplies Agilent PSA E4440A Flow (1-cycle, totally several cycles, with Dual Power Supplies output changed): 1. Set Dual Power Supplies output desired voltage Time Delay 2. Set PSA display OFF, to specified frequency range, points number 3. Set PSA to "Single Sweep" Time Delay 4. Set Marker1, Set VBW/RBW to 10, PSA measures the center frequency and its Y value Time Delay 5. Set Marker2, Set VBW/RBW to 0.1, PSA measures the phase noise of the frequency point 100 kHz greater than the center frequency. Time Delay 6. Set PSA back to "Continuous Sweep" 7. Clear PSA markers If I set sufficient time delay, e.g., 3 seconds for each of these delays, the measurement goes on quite well. But the time consumed is really a lot. Then I shorten the delay, the results go wrong. Like the Y value of marker1 or 2 is not correctly measured. My question is about how to set the optimized time delay so that I could speed up the measurement to the maximum. I tried to search the corresponding manuals of the PSA and Dual Power Supplies but failed to find helpful information. Should I try to change each of the delay time manually or I should reference to some manuals which may indicate the minimum time be waited for the PSA to get the data? Your help would be really appreciated. |
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3个回答
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我没有使用过特定的频谱分析仪,但您的问题可能是扫描时间。
我使用旧的8594,如果我不等待扫描完成,测量结果不正确。 您应该验证分析仪选择的扫描时间(如果设置为自动)不大于您的时间延迟。这是我唯一能想到的。 以上来自于谷歌翻译 以下为原文 I have not used that particular Spectrum Analyzer, but your issue might be the Sweep Time. I am using an old 8594 and if I don't wait for the sweep to finish, the measurement is not correct. You should verify that the sweep time the analyzer picks (if it is set to auto) is not greater than your time delay. That is the only thing I can think. |
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您可以尝试使用* wai等待扫描。
在你编写* wai之前,你必须设置单次扫描,也许命令是“init:cont off”,你可以在PSA手册中找到它。 希望它可以帮助你。最好的问候,亚历克斯 以上来自于谷歌翻译 以下为原文 you can try to use *wai to wait for the sweep . Before you write *wai, you must set single sweep, maybe the command is " init:cont off" , you can find it in the PSA manual. Wish it can help you. Best regards, Alex |
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就PSA而言,最好使用操作完成远程查询(* OPC?)。
一旦扫描完成,这将返回1,因此不涉及猜测工作。 您需要确定和做的唯一事情是将查询的超时设置为比扫描时间更长。要使用此查询,您需要进行单次扫描,然后发送以下内容以进行新扫描并返回1时 done :: INIT:IMM; * OPC?这是PSA的推荐方法。 以上来自于谷歌翻译 以下为原文 As far as the PSA goes, it is always best to use the operation complete remote query (*OPC?). This will return a 1 as soon as the sweep has completed so there is no guess-work involved. The only thing that you need to be sure and do is set the timeout for the query longer than the sweeptime. To use this query you do need to be in single sweep, then send the following to take a new sweep and return a 1 when done: :INIT:IMM;*OPC? This is always the recommended way to do this for the PSA. |
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