LabVIEW 7 Express vs SCB-68 shielded connector block

[manson]

I've the following equipments:
- LabVIEW 7 Express
- SCB-68 shielded connector block
- PCI 6052E
- a circuit with a low-pass filter
How can I display the frequency response of the filter (i.e. amplitude vs frequency) on a graph in LabVIEW? Thanks.

[Spencer S.]

Manson,

The most common technique would be to perform a Swept Sine analysis. The following Developer Zone document contains a presentation concerning this topic:

Developer Zone Document: Swept Sine Analysis

With the PCI-6052E you will be able to use an analog output channel to provide the circuit with the swept sine stimulus and an analog input channel to acquire the response of the circuit. The following LabVIEW example program performs swept sine analysis (it does not include any data acquisition functionality, but it should demonstrate the basic concept):

Example Program: Frequency Response using Swept Sine

Good luck with your application.

Spencer S.