These transducer designs are popular for spot weld inspection. Each has distinctive advantages. Common features among these styles are small diameter (3 mm to 6 mm) and high frequency (10 MHz to 20 MHz).
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Soft-tip Captive Water Column - Optimum for spot welds with flash free, recessed/concave nuggets. The soft tip conforms to the irregular surface of the spot weld nugget. A lightweight liquid is required to transmit (couple) the ultrasonic energy into the nugget.
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Soft-tip Captive Water Column - Polymer Transducers - Polymer transducers generally are higher resolution transducers due to their greater bandwidth.
Soft Tip Captive Water Column - Polymer Transducers |
Frequency (MHz) | Element Dia. | Part Number |
|
in.
|
mm
| |
20 | .125 | 3.15 | HPF-0315 |
.141 | 3.6 | HPF-0360 |
.157 | 4.0 | HPF-0400 |
.177 | 4.5 | HPF-0450 |
.197 | 5.0 | HPF-0500 |
.220 | 5.6 | HPF-0560 |
.248 | 6.3 | HPD-0630 |
Soft Tip Captive Water Column |
Frequency
(MHz) | Element Dia. | Part
Number |
|
in.
|
mm
| |
15 | 0.125 | 3 | SWM-1502 |
0.187 | 5 | SWM-1503 |
0.250 | 6 | SWM-1504 |
20 | 0.125 | 3 | SWM-2002 |
0.187 | 5 | SWM-2003 |
0.250 | 6 | SWM-2004 |