PicoScope 5203 data real-time acquisition

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249573317

PicoScope 5203 data real-time acquisition

Post by 249573317 »

Hello:
I am writing code for picoScope 5203 using PS5000.dll(ps5000sdk_r6_0_11).The problem is that labview can not sample wave form data at 500 MS/s real-time sampling rate after a few time. when the amplitude of data is greater than E-5,
e.x,
7.600000E-8 -8.896923E-5
7.800000E-8 -9.372509E-5
8.000000E-8 -9.893493E-5
8.200000E-8 -0.000104
8.400000E-8 -0.000110
8.600000E-8 -0.000115
8.800000E-8 -0.000121
9.000000E-8 -0.000128
data accuracy goes down.How to improve the data accuracy.
Experiment data as follows.
Thanks!

Chris
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Re: PicoScope 5203 data real-time acquisition

Post by Chris »

Accuracy depends upon the voltage range being used.

The mv level is determined by

(ADC count * range selected ) / 32512

Make sure the range selected in the ps5000SetChannel call is not too high for the voltage level being measured.

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