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Author Topic: Measuring changing frequency and PWM as waveform(scope)  (Read 129 times)

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Offline loshampus

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  • Country: fi
Measuring changing frequency and PWM as waveform(scope)
« on: June 27, 2017, 02:39:25 AM »
Hi!

I am looking to buy a scope (usb) for automotive repair use. The problem is that new automotive airflow meters use changing frequency or Pulse width modulated output signal.

I know that Picoscope software can display changing frequency as its own waveform, are there any cheaper manufacturers that have that same function?(looking for under 300$ usb scope)

i am currently using an hantek 1008 and were unable to find this kind of function in the hantek software.

Thanks.
 

Offline nctnico

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  • Country: nl
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Re: Measuring changing frequency and PWM as waveform(scope)
« Reply #1 on: June 27, 2017, 08:16:33 AM »
Look for input filtering. This can turn PWM into a 'regular' signal.
There are small lies, big lies and then there is what is on the screen of your oscilloscope.
 


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