2008/10/02

Report on “Non-destructive inspection of aircraft structures”

What I have done these two days are:
Review the project report from Mr. /Miss. Tan. I paid much more attention to 1)Introduction; 2)Literature Review; 3)Results and discussion; 4) conclusion and recommendation.

This work helps me to
1) recall some basic knowledge regard signal process. But I need more time to clear up this part;
2) learn the information about Sonic BondMaster with its four modes of testing ( Resonance Test, Pitch/Catch Swept and Impulse, MIA)
3) know the general technical operation procedures of testing including specimens fabrication and inspection procedure.


There are some questions needs your kindly reply:
Q1) what is loaned NI system? What is the relativity with Sonic BondMaster? How can you acquire the data set?
Q1) we used the National Instrument (NI) equipment to record the data, this is call BondMaster equipment. We have the machatronic lab in Level 1 to for the experiment.

Q2) the test specimens are same as those in last report on Sonic BondMaster, right?
Q2) Test Specimen is the same. If you would like to have a look, I can show it to you. 

Q3) the first step is data acquisition and analysis. Would you please let me know some detailed topics?
Q3) I used different signal processing techniques, such as wavelet, hulber huang, FFT, Stastical analysis…….The option is open.

Q4) what does “data model” mean you mentioned last time. I got my own data in my lab. It is produced by a program and saved in a .txt file. The records are serials of distances(x, y position) and Sensor Nodes ID. It seems different with those for defects detection.
Q4) Maybe you can send me the data, relevant figures, picture. I will have a look. And tell me what data is that.

What I am going to do next:
 Try to read the .m file in Matlab to discovery some more information.

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