TOFD Preamp
Ensuring an acceptable noise level value
In some cases, when working with TOFD technology, the use of long (more than 5 meters) high-frequency cables is required. At the same time, in order to isolate diffraction signals against the background of noise, regulatory documents require an acceptable noise level value. To ensure an acceptable noise level, a preamp with a fixed gain is used.
Battery-powered two-channel preamp TOFD
Article number S0170002
The TOFD preamp is equipped with adapters for installation on ECHOPLUS scanners and other manufacturers.
Specifications of the preamplifier
| Number of radiating channels | 2 |
| Number of receiving channels | 2 |
| Gain factor |
42 dB |
| The bandwidth of each amplifying channel of the receiving path with an uneven transmission coefficient in the bandwidth | 0,5÷20 MHz |
| Input resistance | 500±50 Ω |
| Output impedance | 50±5 Ω |
|
Spectral noise density reduced to the input |
≤ 2 нВ/Гц^1/2 |
| Power supply from batteries of the type |
2хLi-ion18650 2000 mAh |
| Continuous operation time from the internal battery is not less than |
8 р |
| Possibility of power supply from an external DC voltage source | 7÷12 М |
| Type of connector for connecting an external DC power source | connector ERA.0S.304.CLL (LEMO) |
| The level of protection against exposure to water and ingress of solid particles into the housing is not lower | IP65 |
| Type of connectors for connecting to the flaw detector | connectorERA.0S.250.CTL (LEMO) |
| Type of connectors for connecting piezoelectric converters | connectorSMA-10V11-TGG |
| The level of protection against exposure to water and ingress of solid particles into the housing is not lower | IP65 |
| Type of connectors for connecting to the flaw detector | connector ERA.0S.250.CTL (LEMO) |
| Type of connectors for connecting piezoelectric converters | connector SMA-10V11-TGG |
| Weight |
0,5 kg |
| Overall dimensions, L×W×H | 160×85×41 mm |
|
Ambient operating temperature |
minus 50 ÷ plus 50 °С |