I use PXIe-4305, and it couldn't measure voltage signal

[Kwangmin_Kim]

ello,

I recently purchased a PXIe-4305 and tested it with SCXI-1125 (with 1313A).

During the testing, I measured the rapid voltage drip and voltage behavior of module voltages (Coil).

Please find attached a figure that shows the measured results obtained through both systems. Both systems measured the module voltage and current at the same time.

However, I encountered a problem where the measured voltage signals were lower than the limit voltage of SCXI and PXIe, but PXIe failed to measure all the signals.

I am not sure why PXIe was unable to measure all signals like SCXI.

If anyone has any insights or suggestions regarding this issue, please let me know.

Thank you.

Best regards,

[santo_13]

We need a lot more details in terms of hardware connection, instrument settings used etc.,

[Kwangmin_Kim]

Thank you for replying to my previous question.

I have attached the configuration of my PXIe system for your reference.

During the test, all modules were measuring the voltage signal from the test object and sensors, for a total of 224 channels.

The operation speed of the LabVIEW program was set to 2 msec (While loop speed).

Thank you for your time.

Best regards,

[santo_13]

Unfortunately, the information is still too vague in terms of how the instruments are configured and used in your application.

What is your sampling rate? voltage range? ADC bitness configured? input configuration? how many samples do you read every iteration?