Measure 0.1Hz to 1MHz

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stigers
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Measure 0.1Hz to 1MHz

Post by stigers » Tue May 08, 2018 12:11 pm

Hello

I have a PicoSpope 2204A and use it with MATLAB.

My problem:
I would like to measure the spectrum from 0.1Hz to 1MHz. As guideline I took the PS2000_IDFastStreaming_SimpleTrig_Example.m. Now I have the problem that I couldn’t measure as low as 0.1Hz. I tried to increase the number of samples, but then an overflow is occurred. On the other side, when I try to lower down the sampling interval then also an error occurs.

Is it possible that the PicoScope can’t measure up to 1 MHz? Or am I using the wrong mode for this? And how can I measure 10 seconds to see down to the 0.1Hz frequencies?

Many thanks in advance

Hitesh
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Re: Measure 0.1Hz to 1MHz

Post by Hitesh » Mon May 14, 2018 2:26 pm

Hi stigers,

The PicoScope 2204A has a 10 MHz bandwidth but in streaming mode, there is a risk of losing data as it is is a low memory device.

Is your signal composed of a range of frequencies? What is the signal source? Have you tried performing some measurements using the PicoScope software in the first instance to see what is possible?

Regards,
Hitesh

Technical Support Engineer

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