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creating offset

Hi there,


I have a problem. I am studying Software-Engineering in Austria. I had to choose an optional subject to finish my semester. I took a laboratory exercise for crashtest. We made tests and measured many things and everthing went good. Now i have to write a report about what we made. I have got some tdms files with measurements and some instructions. I never used DiAdem before. So I don´t know how to use this software. Can you please help me doing the instructions. These are very basic tasks. It should not be that difficult.

 

I don´t want you to do my homework. Can you at least explain me how to do it.

 

Thanks in advance.

 

Instructions:

 

1. Import the acceleration curve into the VIEW window in Diadem
(Beschleunigung X)    ------------> did this
2. Calculate the necessary offset ------------> stuck here. What is an offset and how can I create it using DIadem.
3. Offset correction of the acceleration curve with the offset function in the
ANALYSIS window 
4. Import the offset corrected acceleration curve into the VIEW window
5. Take the maximum value of the acceleration curve for the further calculation
(measured deceleration, see next slide)
6. Take also the reaction time (Reaktionszeit_ms)
for further calculation (see figure)

 

 

I really need your help. I will upload the file for this task. I just want you to give me some tipps how to do it. Or if you are volunteer, you can simply do and upload it for me.

 

 

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Hi!

 

An offset is normally a delta in the y-axis (y-Achsenversatz), so you just add a constant value to every y-value of your channel.

 

You find the functionality in DIAdem in the Analysis module in the function group "Basic Mathematics" ("Basismathematik") and there "add" ("addieren").

 

Alternatively you can do this also with the calculator:

 

How Do I Add a Constant to Channel Data in DIAdem? - National Instruments
http://digital.ni.com/public.nsf/allkb/B459582E0E92001C86256DD600616D98

 

Best regards

Christoph

Staff Applications Engineer
National Instruments
Certified LabVIEW Developer (CLD), Certified LabVIEW Embedded Systems Developer (CLED)


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