Project Members

Mike Schoonover, hardware & software
Zenaido Delgado, UT alpha testing
Trey Brown, technical
Daryl Bolen, controls
Rick Girndt, ultrasonic
Curt Irvin, hardware & software
Fiona Zhang, software
You (yes, you!)

Contributing Companies

TRECO IRNDT


Documents

Java Source Code
Rabbit Source Code
DSP Source Code
Schematics

Technical Reference

Eagle Board Layout Tutorial and Project Design Guidelines

ICAP/4 RX Tutorial

Tools

Ultrasonic


Issue List

Things we are working on adding or fixing!

click here


Meta Data

Quips, Quotes, & Definitions


 

 

 

The

   Capulin

         Project

 

Reference

Instructions and help notes for various project tasks.


Git for Windows Download 
Git Instructions
GitHub Instructions


February 19, 2013        Shear Wave Distances

 

45 Degree Shear Wave

Actual Path Distance for 1 leg = wall thickness / cos(45°)
  (this is approximate; actual path is longer due to ID curving away)

Surface Distance From I.D. Defect for 1st Leg = wall thickness * tan(45°)
  (this is approximate; actual path is longer due to OD & ID curvature)

Leg & Skip

Notes:

The full path shown in red is one "skip".
The first half of the path is "Leg 1", the second half is "Leg 2".
The transducer angle to the surface of the tube is not 45, it is angled appropriately to produce the 45 angle in the tube body taking into account Snell's Law of Refraction.




December 16, 2008        Geometry

For a right angled triangle:

sin A = opposite / hypotenuse
cos A = adjacent / hypotenuse
tan A = opposite / adjacent

Miscellaneous Equations

tan A = sin/cos
sin^2 theta = 1 - cos^2 theta
sin (A +/- B) = sin A * cos B +/- cos A * sin B

cosec A = 1/sin A
secant A = 1/ cos A
cotangent = 1/tan A


April 21, 2008                Speed of Sound in Various Materials

Material m/s ft/s
Aluminum  4877 16000
Brass  3475 11400
Brick 4176 13700
Concrete 3200 - 3600 10500 - 11800
Copper 3901 12800
Cork 366 - 518 1200 - 1700
Diamond 12000 39400
Glass 3962 13000
Glass, Pyrex 5640 18500
Gold 3240 10630
Hardwood 3962 13000
Iron 5130 16830
Lead 1158 3800
Rubber 40 - 150 130 - 492
Steel 6100 20000
Water 1433 4700
Wood (hard) 3960 13000
Wood 3300 - 3600 10820 - 11810
Lucite 2680 8792.54
Polyurethane 1780 - 1900  
Polystyrene 2340 - 2400  
Teflon 1350 - 1520  

 


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