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).
•
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.
•
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 | 0.125 | 3.15 | HPF-0315 |
0.141 | 3.60 | HPF-0360 |
0.157 | 4.00 | HPF-0400 |
0.177 | 4.50 | HPF-0450 |
0.197 | 5.00 | HPF-0500 |
0.220 | 5.60 | HPF-0560 |
0.248 | 6.30 | 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 |