TOFD Transducers
Our time-of-flight diffraction transducers are highly damped longitudinal wave probes that offer excellent resolution in challenging TOFD applications.
These highly sensitive composite element broadband transducers are available in frequencies from 2.25 MHz to 15 MHz and in sizes from 3 mm (0.25") to 12 mm (0.50").
They are for use with specialized TOFD wedges designed to produce refracted longitudinal waves in steel.
Miniature Screw-in TOFD Transducers
| Freq |
Nominal Element Size |
Transducer Part Numbers |
Case
Type |
Case Thread Pitch |
| MHz |
inches |
mm |
|
|
|
| 2.25 |
0.25 |
6 |
C542-SM |
ST1 |
3/8 - 32 |
| 0.375 |
9.5 |
C566-SM |
ST2 |
11/16 - 24 |
| 0.5 |
12 |
C540-SM |
ST2 |
11/16 - 24 |
| 5.0 |
0.125 |
3 |
C567-SM |
ST1 |
3/8 - 32 |
| 0.25 |
6 |
C543-SM |
ST1 |
3/8 - 32 |
| 0.375 |
9.5 |
C568-SM |
ST2 |
11/16 - 24 |
| 0.5 |
12 |
C541-SM |
ST2 |
11/16 - 24 |
| 10 |
0.125 |
3 |
C563-SM |
ST1 |
3/8 - 32 |
| 0.25 |
6 |
C544-SM |
ST1 |
3/8 - 32 |
| 15 |
0.125 |
3 |
C564-SM |
ST1 |
3/8 - 32 |
|
Transducer Dimensions (in inches)
|
| Case Type |
(A) |
(B) |
(C) |
Thread Pitch |
| ST1 |
0.44 |
0.55 |
0.22 |
3/8 - 32 |
| ST2 |
0.71 |
0.685 |
0.257 |
11/16 - 24 |
 |
Miniature TOFD Screw-in Wedges
| ST1 Wedge Type |
ST2 Wedge Type |
Refracted Longitudinal Angle |
Wedge Options |
| |
|
(°) |
|
| ST1-45L |
ST2-45L |
45 |
Standard |
| ST1-45L-IHC |
ST2-45L-IHC |
45 |
Irrigated* |
| ST1-60L |
ST2-60L |
60 |
Standard |
| ST1-60L-IHC |
ST2-60L-IHC |
60 |
Irrigated* |
| ST1-70L |
ST2-70L |
70 |
Standard |
| ST1-70L-IHC |
ST2-70L-IHC |
70 |
Irrigated* |
|
