Program fo Card NI 4139 smu, get sine

[pawel1989]

Hello,

I have a problem with the PXIe-4139 SMU card, and with the LabView program.

The program must generate a sine for the range of 100 measurements / samples from 0.01 to 1 V, and then the pxie card must make a measurement, which is written to the table.
I need to generate a sine and give it to the capacitor and then measure the sine.

Capacitance for the layout element. in the specified range.

Measurement performed at 1V, 50 Hz, and 100 qF

Phase shift = 71.733
Impedance = 110
Capacity = 150qF

The Exel file is the theoretical results for: 0.02 V
Thanks for help

[TSE_Expert · Accepted solution]

Dear pawel1989,

the DCPower was not exactly designed for this purpose, i.e. using the SMU cards as function generators and/or scopes, but to set a single point or a sequence of voltages or currents. Anyhow it is possible to reach the desired V(t) or I(t) waveform by calculating and setting the appropriate signal levels for appropriately long source delay timesteps.

http://zone.ni.com/reference/en-XX/help/370736U-01/nidcpowerviref/nidcpower_configure_source_mode/

http://zone.ni.com/reference/en-XX/help/370736U-01/nidcpowerviref/nidcpower_configure_voltage_level/

The first attached program allows you to use a NI 414x, NI 4135/4136/4137/4138/4139 as an FGEN.  As is, the program is limited to a maximum output frequency of 5 kHz.

The second one is a standard library example with software timing for voltage sweep.

The third example is the modified version of the second, where one sine wave period is generated.

To measure back the generated signal, use the niDCPower Measure Multiple.vi:

http://zone.ni.com/reference/en-XX/help/370736U-01/nidcpowerviref/nidcpower_measure_multiple/

Best Regards,

NI Applications Engineering

The attached Code is provided As Is.  It has not been tested or validated as a product, for use in a deployed application or system, or for use in hazardous environments.  You assume all risks for use of the Code and use of the Code is subject to the Sample Code License Terms which can be found at: http://ni.com/samplecodelicense.