是否可以从PNA-X外部设备控制34970A作为直流电表？

我们不支持使用内置驱动程序，因此您必须为要测量的每个通道创建直流电平表。
也就是说，您必须创建15个版本的34970作为直流电表。
因此，您可能只想从一个通道开始，并且初始化它的命令可能只在第一个通道中。
然后使用ch2命令创建另一个，并且没有初始化（除非你有一些特定于通道的初始化，我不知道34970的细节，告诉你到底需要什么）。
您是否有一个当前用于读取直流电压的scpi命令的示例（我认为您已将其作为独立的数据采集工作）？



     以下为原文

  We don't support it with a built-in driver, so you will have to create a DC meter for each channel you want to measure. That is, you will have to create 15 versions of the 34970 as a DC meter.  As such, you will probably want to start with just one channel, and the commands to initialize it should probabably only in the first channel.  Then create another one with ch2 commands, and no initialization (unless you have some channel specific initializations, I don't konw the details of the 34970 to tell you exactly what is needed).   

Do you have an example of the scpi commands you currently use for reading the DC voltages (I presume you already have this working as a stand-alone data-acq)?

你好Dr.Joel，希望你在享受你的一天！
命令行我正在使用（扫描）是CONF：VOLT：DC（@ 101）ROUT：MON（@ 101）它到目前为止工作......我只需要得到DUT，这样我就可以测量一些参数。
永远感谢。



     以下为原文

  Hello Dr.Joel,

Hope you are enjoying your day!

command line i'm using (sweep) is
CONF:VOLT:DC (@101)
ROUT:MON (@101)

It's been working so far... I just need to get DUT so i can measure some parameters.

Thanks always.

您是否正在使用Data Acq作为DC源（我假设您将其用作Dc表）。
正如我所见，唯一的源模块是34907A多功能模块，它有2个DC（DAC）输出。
这是你控制的单位吗？
如果是这样，你在每台主机上使用了多少？
并且，如果你在扫频模式下使用它与PNA电源扫描同步，我认为你需要让PNA按点进行编程，而不是扫描控制。
我们可以使用b2900 SMU（大约2000点/秒）进行扫描，触发测量，但目前只能在1通道上进行测量。
您需要多少扫描直流电压与固定电压？



     以下为原文

  Are you using the Data Acq as a DC source then (I had presumed you were using it as a Dc meter).  And as I see, the only source module is the 34907A multi-function module, which has 2 DC (DAC) outputs.  is this the unit you are controlling?  If so, how many do you use per mainframe?  And, if you are using this in swept mode to sync with PNA power sweep, I think you will need to let the PNA program it on a per-point basis, not a swept control. 

We can do swept, triggered measurments using the b2900 SMU (about 2000 points / sec) but for right now, only on 1 channel.

How many swept DC voltages vs fixed voltages do you need?

对不起，当你说“扫”时，我以为你的意思是想要扫过DC。
你的意思是（我认为）“扫除电源并读取DC”我现在认为你想出了什么：你的两个命令是初始化（设置Data Acq的通道），如果你只想读一个通道，
可以进入前扫描命令点。
但是如果您想使用多声道，则需要为每次读取设置Data Acq通道。
因此，在每个点上（在点输入框上），您必须发送两个命令以及测量命令：MEASure：VOLTage：DC？
否则，它将仅在扫描开始时发送，并且读取另一个通道将移动多路开关并导致您无法读取所需的读数。



     以下为原文

  Sorry, when you said "sweep" I thought you meant you wanted to sweep the DC.  You mean (I think) "sweep the power and read the DC"

I now think figured out what you meant:  Your two commands are intialization (setup the channel of the Data Acq) and if you only want to read only one channel, they can go in the before sweep command spot. 

But if you want use multichannel, you will need to set the Data Acq channel for each read.  Therefore, on each point (on the point entry box) you have to send your two commands plus the measure command:
MEASure:VOLTage:DC?


Otherwise, it will be sent only at the start of the sweep, and reading another channel will move the multiplex switch and cause you to not read the reading you want.

乔尔博士，对不起，我不清楚测量。
我正在测试的放大器有许多不同的遥测技术，我需要在扫描功率时监控它们。
（直流母线，电流和许多其他参数）到目前为止它工作得很好。
我能够捕捉到它们。
此步骤会降低整个测试速度，但仍比我们的传统测试设置快至少2 = -30倍。
只是一个简单的问题，是否有可能在某个水平上“保持”功率水平？
谢谢你，先生！



     以下为原文

  Dr. Joel,

Sorry i wasn't clear about the measurement. The amplifier i'm testing has many different telemetries and i need to monitor them as i sweep power. (DC bus, currents and many other parameters)

So far it worked just fine. i was able to capture them all. This step slows down the whole testing speed, but still at least 2=-30 times faster than our legacy test set up.

Just one quick questions,

Is it possible to 'hold' power level at certain level?

Thank you sir!

是的，当然一个人可以掌握权力，但我不明白你在这个背景下的意思，你的意思是，扫一扫，然后等一会儿再扫一扫？
你怎么知道何时举行以及何时举行？
通常，直流电表将设置功率，测量所有仪表上的数据，然后设置下一个功率。
您可以在每次测量之前添加一个停留时间（每个点的停留时间），并且可以为每个DC测量添加一个停留时间（尽管您可能只需要第一次测量）。
您可以更清楚地解释所需的测量方案，如：在第一点，设置源功率，测量3个直流读数，然后转到第二点;
在第二点，设置源功率，测量3个直流读数，然后保持10秒，然后测量3个dcreadings，我们这个作为第三个点10秒后，转到第四个点，设置第三个功率，测量3
直流读数，（只是一个例子，你明白）。



     以下为原文

  Yes, of course one can hold power, but I don't understand what you mean by it in this context,

Do you mean, sweep power, then hold for a while, then sweep some more?  how would you tell when to hold and when to sweep?

Normally, the DC meter will set the power, measure the data on all meters, then set the next power.  You can add a dwell before each measuerment (dwell per point) and you can add a dwell for each DC measuerment (although you might only want it for the first one).

You might explain you desired measuerment scenario a bit more clearly, as in:

On the first point, set the source power, measure 3 dc readings, then go to the second point;
On the second point, set the source power, measure 3 dc readings, and then hold for 10 seconds, then measure 3 dcreadings, us this as the third point
After 10 seconds, go to the fourth point, set the third power, measure 3 dc readings,

(Just an example, you understand).

Joel博士，如果我可以像信号发生器那样控制射频源功率，这是一个更普遍的问题。
即CW，固定频率和固定功率。
我需要以固定频率，固定功率电平进行测量，改变DUT输出端的衰减器步长。
（衰减器将由计算机控制）PNA-X控制DAQ工作正常。
另一个项目从列表中删除。
:)



     以下为原文

  Dr. Joel,

It was more of a general question if i can control RF source power, as in signal generator. i.e CW, fixed frequency and fixed power.

I need to make measurement at fixed frequency, fixed power level, changing attenuator steps at the output of the DUT. (attenuator will be controlled by computer)

PNA-X controlloing DAQ is working great. Another item scratched off from the list. :)

使用pna作为cw源，将通道设置为cw扫描类型，设置频率和功率，执行单次扫描，并将其保留。
它应该保持在那种力量和频率上。



     以下为原文

  to use the pna as a cw source, set a channel to cw sweep type, set the freq and the power, do a single sweep, and leave it in hold.  It should remain at that power and frequency.