PreAmplifier
Ultra low noise TOFD / Pulse Echo PreAmplifier
An ultra-low noise, wide bandwidth, fixed gain 40dB TOFD PreAmplifier, suitable for use with any ultrasonic transducers and system. Designed to provide additional front-end gain to improve signal quality in TOFD (Time-of-Flight Diffraction) inspections.
Maintaining a strong signal-to-noise ratio (SNR) is critical for reliable detection and accurate interpretation of diffracted signals. When long probe leads are used, signal attenuation can impact inspection performance. By positioning the Phoenix Preamplifier at the front-end of the system, weak signals can be enhanced before further signal degradation occurs, helping to improve the effective signal-to-noise performance of the ultrasonic inspection system.
The Phoenix PreAmplifier is available as 40dB TOFD 1, 2 or 4 channel, as standard. Other configurations are available on request to suit your specific inspection application.
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Ultra low noise TOFD / Pulse Echo PreAmplifier
Specifications
| Amplifier | |
| Gain | 40dB |
| Bandwidth | 80kHz to 40MHz (-3dB) |
| Noise Figure | 1.0nV/(Hz) 1/2 |
| Input Impedance | 300Ω (Other options available) |
| Output Impedance | 50Ω (capable of driving very long cable lengths) |
| Protection | Input and Output are high-voltage transient protected i.e. HT pulse |
| Power | |
| Power Source | Single 9VPP3 Battery |
| Battery Life | 16 hours (alkaline) |
| Input Voltage | 5V to 12V DC (reverse polarity protected) |
| Physical | |
| Dimensions (W x H x D) | 70mm x 35mm 110mm (2 3/4″ x 1 1/2″ x 4 1/2″) |
| Connectors | Lemo 00 |
| Temperature | 0°C to 70°C |
| Order Code | Description |
| PRE-AMP-TOFD | 40dB TOFD PreAmp 1 channel |
| PRE-AMP-TOFD-2CH | 40dB TOFD PreAmp 2 channel |
| PRE-AMP-TOFD-4CH | 40dB TOFD PreAmp 4 channel |
Features
- 40dB Gain
- Ultra-low noise
- Wide signal bandwidth
- 50Ω Output – capable of driving long cable lengths
- Low power – single 9V PP3 battery or external 5-12 VDC
- Small, rugged enclosure
Benefits
- Consistent Performance – Reliable signal amplification delivers stable, repeatable inspection results
- Clearer Signals – Ultra-low noise helps preserve signal quality, supporting confident flaw detection and analysis
- Versatile Inspections – Wide bandwidth provides flexibility for demanding UT applications
- Flexible Design – Available with 1, 2, or 4 channels to suit your inspection setup and workflow
- Confidence with Long Probe Leads – Additional gain helps maintain signal strength in TOFD applications.