示波器探头最大瞬态电压是否可以在信号中使用

不要这样做。
除了安全问题，还有可能破坏范围的输入。
作为10：1探头，300V RMS作为30V RMS提供给示波器。
示波器的前端可以处理该电压，并消耗产生的功率。
探头可以处理> 400V的瞬态电压。
达到600V RMS意味着耗散4倍的功率，前端威廉希尔官方网站 可能无法处理60V RMS。
免责声明：为了获得更可靠的响应，您应该考虑致电当地的安捷伦技术呼叫中心。
安捷伦william hill官网 在“可用”的基础上进行监控，并不一定是获得技术问题的最快方式。编辑：algoss于2014年2月19日下午3:11



     以下为原文

  Don't do it.

Besides the safety issues, there's the possibility of destroying the input of the scope. As a 10:1 Probe, 300V RMS is presented to the scope as 30V RMS. The front end of the scope can handle that voltage, and dissipate the power generated. The probe can handle transients to >400V. Going to 600V RMS means dissipating 4 times as much power, and the front end circuits may not be able to handle the 60V RMS.

Al

Disclaimer: For more reliable response, you should consider calling your local Agilent Technical Call Center. The Agilent Forums are monitored on an "as available" basis, and aren't necessarily the fastest way to get technical questions answered.

Edited by: algoss on Feb 19, 2014 3:11 PM

感谢范围可以处理1000x是安捷伦DSO1002A我应该更好地使用差分探头吗？
我有一个额定电压高达700 V.电缆额定电压为1000V。



     以下为原文

  Thanks the scope can handle 1000x is the Agielnt DSO1002A should I better use differential probe for that? I have one rated up to 700 V. Cables rated at 1000V.

您的信号是差分信号，还是一侧接地？
如果它是差分的，那么你应该使用差分探头。
根据数据表，您可以选择探头： - 10076B - 250 MHz，100：1,4 kV无源探头 - N2771B - 50 MHz，1000：1 30 kV无源探头 - N2791A - 25 MHz，700V差分探头 - N2891A
- 70 MHz，7 kV差分探头什么是瞬态的BW？
您可以通过使用.5 /上升时间来估计。
一旦你知道了，请选择。
免责声明：为了获得更可靠的响应，您应该考虑致电当地的安捷伦技术呼叫中心。
安捷伦william hill官网 在“可用”的基础上进行监控，并不一定是解决技术问题的最快方式。



     以下为原文

  Is your signal a differential signal, or is one side grounded? If it's differential, then you should use a differential probe.

According to the datasheet, you have a choice of probes:
- 10076B – 250 MHz, 100:1, 4 kV passive probe
- N2771B – 50 MHz, 1000:1 30 kV passive probe
- N2791A – 25 MHz, 700V differential probe
- N2891A – 70 MHz, 7 kV differential probe

What's the BW of the transient? You can estimate that by using .5/rise time. Once you know that, take your pick.

Al

Disclaimer: For more reliable response, you should consider calling your local Agilent Technical Call Center. The Agilent Forums are monitored on an "as available" basis, and aren't necessarily the fastest way to get technical questions answered.

我不知道BW我被告知测量将在一辆卡车内部吹扫一些LED，他们认为这是因为交流发电机或其他地方的高瞬态。
它让我觉得褶皱可以产生那些高瞬态，它会先调节稳压器而不是显示器中的某些LED，它们是否可以达到高电压？
面对一种你不知道有多高的瞬态可以保护探头和设备的情况下，最好的方法是什么？
再次抱歉，我的浏览器出现问题的重复消息，我修复了它。
我无法删除我重复的消息。编辑：theamberco于2014年2月20日下午3:18



     以下为原文

  I dont know the BW I was told the measurements will be inside a truck that blows some LEDs in a diplay and they think is because high transients from the alternator or somewhere else. It srikes me that a tuck can generate those high transients, would it blow the regulator first and not some LEDs in a display and can they be that high in voltage?
What is the best approach when facing a situation where you dont know how high trasients can be in order to protect the probes and equipment?

Sorry again for the repeated messages I had a problema with my browser, I fixed it. I cant delete my repeated messages.

Edited by: theamberco on Feb 20, 2014 3:18 PM

如果您不知道最大电压，请使用可以获得的最高电压探头，并设置最高V /格设置（最小波形）的范围。
继续调整垂直直到您可以看到信号的最大高度。
如果您看不到信号或任何尖峰，请转到较低电压的探头。
在此之前，请保持安全......免责声明：为了获得更可靠的响应，您应该考虑致电当地的安捷伦技术呼叫中心。
安捷伦william hill官网 在“可用”的基础上进行监控，并不一定是解决技术问题的最快方式。



     以下为原文

  If you don't know the maximum voltage, then use the highest voltage probe that you can get, and set the scope for the highest V/div setting (smallest waveform) that you can. Keep adjusting the vertical until you can see the max height of the signal. If you can't see the signal, or any spikes, then go to a lower voltage probe.

Before any of that, be safe...

Al

Disclaimer: For more reliable response, you should consider calling your local Agilent Technical Call Center. The Agilent Forums are monitored on an "as available" basis, and aren't necessarily the fastest way to get technical questions answered.

同时调高强度并使用峰值检测模式：http：//youtu.be/1DKkdoyAdTI



     以下为原文

  Also crank up the intensity and use peak detect mode: http://youtu.be/1DKkdoyAdTI

重复的帖子



     以下为原文

  duplicate post

您最好使用高质量万用表开始诊断，使用Min / Max可以测量瞬态，甚至可以记录电气系统的行为。
您的示波器可以在以后使用，以了解您正在处理的内容。



     以下为原文

  You better start your diagnosis by using an high quality multimeter, with Min/Max you may measure transients and even log the behavior of the electrical system. 
Your oscilloscope it can be used later on that you are aware of what you are dealing with.

> {quote：title = Kiriakos GR写道：} {quote}>您最好使用高质量的万用表开始诊断，使用Min / Max可以测量瞬态，甚至可以记录电气系统的行为。
>您的示波器可以在以后使用，以了解您正在处理的内容。
好主意但是如果信号/瞬态高于万用表可以接收的信号，我将无法捕获它。
我的Agilent U1253B配备USB电缆，我可以尝试从它开始。
我不知道那个万用表上的uS捕获可能是300uS。
我也可以使用功率分析仪，但我没有。



     以下为原文

  > {quote:title=Kiriakos GR wrote:}{quote}
> You better start your diagnosis by using an high quality multimeter, with Min/Max you may measure transients and even log the behavior of the electrical system. 
> Your oscilloscope it can be used later on that you are aware of what you are dealing with.
Good idea but if the signal/transient is higher than what the multimeter can pick up in uS I will not be able to capture that. I do have the USB cable with my Agilent U1253B, I could try to start with it. I dont know what is the uS capture on that multimeter probably in the 300uS. I can also use a power analyzer, but I do not have one.