BondMaster for NDT

What I have done these days?

• 1. Search and read more materials regarding BondMaster. 
  

Especially, an application guide downloaded from Olympus website show me five inspection methods including,
(1). Pitch-Catch Test Mode

• (1a) Pitch-Catch RF Method
  
• (1b) Pitch-Catch Impulse Method
  
• (1c) Pitch-Catch Swept Method
  

(2). MIA Mode
(3). Resonate Mode.
Comparing with the thesis, both of them explain the theories and give me some examples.
Currently, I have a general comprehension on Non-Destructive Testing.

• 2. Read and learn your Matlab code.
  

I have read your Matlab code and learn the functions. I have to start from the scratch to recall much minor knowledge, such as what is FFT or when we should use it. Basically, I can explain your code myself as below:

(1) Load the data from .mat file, declare 1st column as input, 2nd as output.
(2)Apply a high pass filter to output.
(3)Use FFT to output;
(4)Repeat the process to each specimen.

• Current questions and difficulties:
  

1. I am a little puzzled about Numerical Analysis and Signal Processing, both of them are not similar for me.  Would you please tell me what is the field of our current topic?

2. I should brush up much knowledge to push my research. Would you please let me know what is urgent?

3. Here are some questions for you. Thanks for your kindly reply:

Q1. What are the data we acquired from BondMaster stand for?
There are two columns in the data file for each Exp0…Exp9. You declare the first column as input(x), while the second one as output(y).
But according to the thesis, we use probe tips to touch the specimens, then the instrument give us back some signals, such as the phase and amplitude. How we can acquire these data? What kind of data in start_m.mat have recorded?

Q2. What do the original Time-Data plots (Page 4 of slides) stand for?
The X axes maybe time. What do Y axes stand for? Input(x) or output(y)?

Q3. How can I use my own data? What’s the difference between them and yours?
My own data only contains position info (x, y position). They are different with yours, and maybe not suitable for inspection.
Attachment is an excel I got from our current equipment in my lab. Please take a look.

Next, I will
I am going to try my best to write a little paper base on the materials you send me. An outline will be proposed soon.

Questions waiting for answer.
Q4. How to introduce the project to others? What is the main process of this project?
We fabricated 12 different specimens to simulate the composite in F-16. Use these specimens, we The Non-Destructive Testing(NDT)
(1) We fabricated 12 specimens.
(2) Use Bond
Q5. What is Fourier series? What is FFT? When we should use FFT?
Q6. What is the outline/structure of this paper?