In Cylinder Pressure measurement VI

[MatthewMMU]

Hi,

I am currently working on a project where I have to create a Temperature and Pressure VI on LabVIEW using the Ricardo E6 Engine 

Im reliably new too LabVIEW and I am just wondering if there is anyone who could help me with this ?

the equipment that have is;

-Kistler Type 7061B Piezoelectric pressure transducer

-K type thermocouple

-NI cDAQ-9178

-NI 9215 card for the pressure measurement

-Bruel & Kjaer Charge Amplifier type 2635

If anyone could give me some guidance this would be much appreciated. 

Attached is what I have created so far, I have to sync the encoder in order to get the pressure data at TDC 

🙂 

[RobGeografo]

Hi Matthew,

Here are some steps we can try:

1. Implement some error handling in the code (simple error handler, etc.). This will allow you to see if there is any error at run-time.
2. When you install NI-DAQmx, you should be able to access DAQmx Examples on LabVIEW. To do so, please follow the instructions in the following knowledge base article: https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z0000004B6mSAE&l=en-US . In the search bar type Temperature and a project called Temperature Monitoring will pop up on top of the queue. Have a look at that and see if it helps.
3. Same thing as above for pressure. It will give you the idea to build your application successfully.

Best,

Rob

[ikaiser]

+1 for what RobGeografo wrote.

Please allow me additional comments in a different area:

- From the project overview you gave in your posting I don't get what exactly your final application shall look like. Do you need to acquire temperature and pressure in parallel? Do they need to by in sync?

- Your current code is a one-shot VI. Starting it it acquires data once, then stops. Maybe this is what you need, maybe not. Give us a hint (-:

- Your pressure sensor is connected to the NI-9215 DSA module. Where do you plan to connect the thermocouple?

- Your pressure task looks quite good. Please note that the 9215 can do 100kS/s. You have currently set the sample clock input to 200kHz. Not a problem, as you use your encoder output as sample clock, however this might be an indication that you expect like 200kHz as the encoder pulse frequency. Be aware.