The following is an article on a topic of Multisim I really like the integration with other software packages and the fact of how we can extend simulation and analysis capabilities.
addition to the typical virtual instruments (oscilloscope, multimeter, etc.) for the simulation of circuits in Multisim have a special set of instruments known as Instruments LabVIEW.
First of all define what is LabVIEW. LabVIEW is a graphical programming language used in measurement applications, automation, control, design, research, etc. Like any other programming language allows us to create our own programs, but the big difference is that instead of having to use text to programming, we do it through blocks that are interconnected.
addition to ease of programming, LabVIEW has many libraries for signal analysis, mathematics, instrument control, data acquisition, etc. To learn more about LabVIEW one click here.
Now imagine the following scenario, we have a circuit and we need to get your answer in time, power spectrum, averaging the output signal, etc. O also require using a custom signal to the input of the circuit. What to do in such cases? We can certainly use some of the virtual instruments or advanced analysis of SPICE for certain calculations, but if you need more advanced or we can use a custom LabVIEW Instrument Multisim. Put another way, we can create a program in LabVIEW and Multisim for use within a specific task.
In the bar we can find instruments Multisim Instruments LabVIEW some were created for certain applications:
From the above figure we can see we BJTs analyzer, microphone, speaker, an analyzer and signal generator, etc.. To explore these instruments only place them in the Multisim workspace and double click on them to open the front panel. For example, in the following figures we see the block Signal Analyzer and the corresponding front panel
To see in action this instrument we will open one of the examples of Multisim. To do this we select File >> Open Examples ... We'll sail to the next folder Instruments LabVIEW >> Signal Analyzer and open the file GilbertCellMixer . This circuit uses the analyzer is Nal to see results of the Gilbert cell mixer. Execute the simulation and see the front of the analyzer Signal:
By clicking on the Analysis Type field can see different results from analysis. The interesting thing is that the front panel was created and customized in LabVIEW, so that we can create our own tools to perform a specific function. Sure, it requires knowledge of LabVIEW to make the necessary programming.
In the next blog entry will use the microphone and speaker included in Multisim and LabVIEW Instrument.
meantime if there are questions on this issue do not hesitate to tell me.
Until next time. Fernando
0 comments:
Post a Comment