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where expertise comes together
- since 1996 -

Ultrasonic Sciences Ltd
We specialize in the design and manufacture of automated and semi-automated ultrasonic testing systems, including multi axis, multi channels systems and phased array electronics.
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Technical Discussions
Xiao Wei
Engineering,
UniSA, Singapore, Joined Jun 2018, 10

Xiao Wei

Engineering,
UniSA,
Singapore,
Joined Jun 2018
10
15:34 Jun-25-2018
Beam Angle

Hi All, need your expertise, thanks.

Q. The half-angle beam spread of the reflected wave front from a #8 FBH in an aluminum "A" block being immersion tested using a 25 MHz transducer is? (VL = 1500 water; VL-Al=6300; VT-Al=3100;..... all times m/s)

 
 Reply 
 
Michel Couture
NDT Inspector,
consultant, Canada, Joined Sep 2006, 868

Michel Couture

NDT Inspector,
consultant,
Canada,
Joined Sep 2006
868
21:29 Jun-25-2018
Re: Beam Angle
In Reply to Xiao Wei at 15:34 Jun-25-2018 (Opening).

My young friend, you will not learn your trade by memorizing the answer of question in exams.

1
 
 Reply 
 
Xiao Wei
Engineering,
UniSA, Singapore, Joined Jun 2018, 10

Xiao Wei

Engineering,
UniSA,
Singapore,
Joined Jun 2018
10
14:55 Jun-26-2018
Re: Beam Angle
In Reply to Michel Couture at 21:29 Jun-25-2018 .

My friend, when I posted my question, I didn't expect everyone like Ed who didn't simply answer my question, instead he directed me to the article for my answer. I solved my questions successfully. I no need to tell the whole world that I have difficulties to study UT theory, and I don't believe I just got few answers that just memorize them and will pass ASNT L3 exam. I do expect people who just ignore me if they feel my questions is too simple or silly, I do believe this forum is open to everyone who wants to find out answers from those experts. I hope I won't explain again in future, thanks.

 
 Reply 
 

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