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The correct way to account for attenuated probes (e.g. x10)

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The correct way to account for attenuated probes (e.g. x10)

Postby YossiP » Wed Dec 09, 2015 1:30 pm

Hello,

We are using PicoScop2205MSO to read samples directly into a C# .net in-house application.

Recently we changed the probes we are using to 10x attenuated probes, naturally all readings were scaled by factor of 10, so 6 volt are sampled as 600 Milli-volt.

Reducing the range and manually multiplying the values seems to do the trick, however is there a better way to account for probe attenuation when using the API?

The PC software (PicoScope 6) has a built-in selection for probes, what parameters/API calls will match the PC selection?

Best regards,
Yossi
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Re: The correct way to account for attenuated probes (e.g. x

Postby Hitesh » Fri Dec 11, 2015 9:17 am

Hi Yossi,

The driver returns raw ADC count values, so your application will need to convert the data to volts (or any other relevant unit of measurement) and also take into account the probe setting being used.

The probes provided provide some form of scaling using a formula or manual scaling.

Regards,
Hitesh

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