im doing my final year project here and i need help- karasi

[karnan]

I hope this might help you though. This was done by the previous student. Please do reply ASAP. Thank you.

[nathand]

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@karnan wrote:

I hope this might help you though. This was done by the previous student. Please do reply ASAP. Thank you.

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Let's be clear here - you're the one who's looking for help, not us (the forum users).  Don't say "I hope this might help you."  Write some code and ask specific questions if you want a useful reply.

[NIquist]

Yes indeed. I did NOT mean to give you the impression that I (or other forum members) are going to write the code for your project. This is schoolwork, you get the grade so you have to do the work. We will help of course. What I was asking for is that you tell us how the PCR hardware interfaces to the world. We know what an NI USB-6008 is but we don't know the details of the hardware you're trying to connect or what you expect to do with it.

[karnan]

I'm sorry if I sounded like as if I wanted the answers. But I just wanted to know if anyone out there could expain to me about this project. Since I'm new to forums and to this software itself. Thus, I might have sounded that way. Sorry again. Anyways, I'll be beginning on my project next week as I'll be trying to understand labview and my project itself. I'll put up my codes if I do get stuck on anything. Thanks.

[NIquist]

No problem karnan.   It sounds like you're excited to do this project and that's great. 

Besides general LabVIEW coding we might be able to assit you with interfacing to the hardware.  You showed us a picture of your USB-6008.  Is that what you are using to communicate with the PCR hardware?  Some hardware has built-in interfaces such as RS-232, GPIB, USB, etc.  That's what I was asking about before.  Check the manuals when you get your equipment next week and see what type of interfaces you have to work with.

[karnan]

The MEMS Chip comes with an integrated heater and sensor element to control the environment.

Temperature readings are collected by the sensor on the MEMS chip, send through the DAQ Card to the DNAlysis Mobile Lab where it will calculate the temperature required.

The PCR Mobile Lab displays the measured temperature, the fluorescence level, the global set point temperature and the visual for the bio-reactor chips. The program calculates the appropriate temperature adjsutment needed for the PCR process to take place.

The data for the temperature adjustments are then sent through the DAQ Card back to the MEMS Chip where the data will drive the heater.
 

MEMS Bio-Reactor

The DNA sample is cycled through the three stages of PCR in a MEMs bio reactor, which consist of fluidic chamber with 15-20 micro litres capacity to hold the DNA sample. Has anyone hear dof a MEMS chip here?

[NIquist]

MEMS (Micro Electro Mechanical System) is just a technology that the makers of your PCR happen to use.  My company builds MEMS chips that direct fiber-optic beams onto particular fibers in an optical bundle (which has nothing to do with chemistry).  It is very cool technology but it is not really relevant to what you need to do.

You say the "program calculates the appropriate temperature adjustment".  Do you mean the LabVIEW program you are to write?  If so, it sounds like you need to study up on PID process control.  There are many ways to do PID in LabVIEW and there is even a toolkit for it.  Do you have it?  To be honest, that would be almost cheating since you can create your own easily.

See this:  http://en.wikipedia.org/wiki/PID_controller   and search for PID in the example finder to get started.

[karnan]

Thank you so much for the infomation that you've given. I'll go and read up more on it. If they are any questions, I'll post them up here. Thanks again.

[karnan]

I've attached what my supervisor gave me. Could someone explain to me what's going on to Bio R 1? I do not understand this. And how do i make the graphs overlap each other as their respective buttons have been clicked on.

[Dennis_Knutson]

That VI does nothing - it is a non-functional example of a front panel with some default data saved. The XY graph you mention is just a multi-plot. It is you that will have to determine how and where you will get 4 separate sets of data to display there.

Take the LabVIEW tutorial and study the instrument manual backwards and forwards.