Management of switch software

Hello

I am trying to develop a system to monitor the components on the cards of PCB in the oven, it s essentially has a failure analysis of components such as C, resistors and capacitors.

Here are some of my test system

The test system must monitor the components on the PCB 1 year.

I want to measure the resistances and abilities using a RLC to identify the problem. Failure of the resistance is identified with an open circuit and a failure of the capacitor is identified with a circuit short circuit/open. I have a 420 capacitances to measure and I would like to automate the measurement using multiplexers of NOR.

I got to watch the first ability (C1) 3 minutes (which would be linked to the first input of the multiplexer), followed by second 3 minutes and so on. Once all 420 capacities are monitored, the loop must start from Capacitance C1.  I would like to know how to program the switches of the NOR. Could someone please suggest me how to proceed with this. ? Is good enough to automate Labview switches or should I go ahead with the switch management software? Can you please explain in detail because am a beginner in Labview?  Forward to your response. Thanks in advance

Hello switcher.

Yes, LabVIEW is an ideal programming environment! .

I suppose you have no switch OR equipment at the present time.

Measurement of the capacitance range are you watching?

What voltage are the plugs at?  Looks like it's just a test section, but I guess the capacitors to be held at a constant DC bias?  (Otherwise, the test data that you collect is capacitance of the real world).

Without any specific input except the number of capacitors, I recommend 5 multiplexers of PXI-2575 x configured as a 2 son 98 x 1 mux.  You can use the PXI-2575 x modules only 3 in mode 1 wire 196 x 1 if your DUJT capacity is sufficient to overcome the parasitic capacitance total of 420 caps (all the negative wires would be linked to the negative contribution of the IGS), but I recommend the approach 2-wire, because it isolates each CAP in a differential measurement.

The PXI-4072 has a function of measure of ability.

With respect to the software, I recommend using NOR-DAQmx switch API, but you can also use the OR-Switch and NI Switch Executive API as well.  However, I think that NI Switch Executive is excessive for this application, and it will take a unique session for each switch OR Switch module (OR-Switch is consistent IVI and IVI has no concept of linking several modules).

.. ask away if you have any questions.  I'm not "wait I answered them: all in this first response."

Tags: NI Products

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