Description
These are single-element transducers used in direct contact or immersion technique, designed to generate frequencies starting from 20 MHz and beyond. These transducers are available in fused silica delay line technology.
Benefits:
- Wide bandwidth and high damping ensure excellent resolution.
- Short wavelengths for improved defect detection.
- Focusing on very small beam diameters.
- Frequency range from 20-150 MHz (contact us for higher frequencies).
Benefits:
- High resolution for detecting defects such as micro-cracks or micro-porosities.
- C-scan imaging of surface-breaking cracks or irregularities.
- Thickness measurement of parts from 0.025 mm (steel equivalent).
- Inspection of technical ceramics and other materials. Material analysis.
- Acoustic microscopy.
High-frequency contact transducers
- Integrated fused silica delay line for evaluating defect severity, material analysis, or thickness measurements using the direct contact inspection method.
- Three different delay line types available to optimize signal echoes.
- Standard transducers come with radial output via Microdot connector.
 |
Delay line type | A | B | C |
|---|---|---|---|---|
| SL | 18 mm | 21 mm | 25 mm | |
| FL | 9 mm | 11 mm | 21 mm | |
| FS | 9 mm | 11 mm | 16 mm |
| Frequency MHz | Element diameter (mm) | Element diameter (inches) | Delay line length (µs) | Transducer reference |
|---|---|---|---|---|
| 20 | 6 mm 6 mm 6 mm |
0.25″ 0.25″ 0.25″ |
4.25 4.25 2.5 |
VF 202-FL VF 202-SL VF 202-FS |
| 30 | 6 mm 6 mm 6 mm |
0.25″ 0.25″ 0.25″ |
4.25 4.25 2.5 |
VF 302-FL VF 302-SL VF 302-FS |
| 50 | 6 mm 6 mm 6 mm 3 mm 3 mm 3 mm |
0.25″ 0.25″ 0.25″ 0.125″ 0.125″ 0.125″ |
4.25 4.25 2.5 4.25 4.25 2.5 |
VF 502-FL VF 502-SL VF 502-FS VF 501-FL VF 501-SL VF 501-FS |
| 75 | 3 mm 3 mm |
0.125″ 0.125″ |
4.25 2.5 |
VF 751-FL VF 751-FS |
| 100 | 3 mm 3 mm |
0.125″ 0.125″ |
4.25 2.5 |
VF 1001-FL VF 1001-FS |
| 125 | 3 mm | 0.125″ | 2.5 | VF 1251-FS |
| 150 | 3 mm | 0.125″ | 2.5 | VF 1501-FS |
| Cable for all LEMO1 / Microdot transducers reference LCM 74-2 or BNC / Microdot reference 2124-2. For frequencies from 30 MHz, we recommend short cables with double shielding and very low impedance. Contact us | ||||
High-frequency transducers, immersion, standard housing
- Integrated fused silica delay line for frequencies above 30 MHz. For frequencies below 30 MHz, delay lines are epoxy.
- Focused transducers using optical-quality lenses.
- High frequency combined with a compact housing.
| Frequency MHz | Element diameter (mm) | Element diameter (inches) | Delay line length (µs) | Focal length | Transducer reference |
|---|---|---|---|---|---|
| 20 | 6 mm 6 mm 6 mm 6 mm |
0.25″ 0.25″ 0.25″ 0.25″ |
4.25 2.5 4.25 4.25 |
Flat 19 mm 32 mm 51 mm |
VF 401 VF 402 VF 403 VF 404 |
| 30 | 6 mm 6 mm 6 mm 6 mm |
0.25″ 0.25″ 0.25″ 0.25″ |
4.25 2.5 4.25 4.25 |
Flat 19 mm 32 mm 51 mm |
VF 405 VF 406 VF 407 VF 408 |
| 50 | 6 mm 6 mm 6 mm 6 mm |
0.25″ 0.25″ 0.25″ 0.25″ |
4.25 2.5 4.25 2.5 |
Flat 19 mm 32 mm 13 mm |
VF 409 VF 410 VF 411 VF 412 |
| 75 | 6 mm | 0.25″ | 2.5 | 13 mm | VF 413 |
| 100 | 6 mm | 0.25″ | 2.5 | 13 mm | VF 414 |
| Cable for all these BNC / Microdot transducers. Contact us for other lengths or impedances. * Transducers designed to generate surface waves in steel, titanium, and similar high-speed materials. |
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