Photodetector Manual>>- Integrated Module Of DVS
- Distributed Acoustic Sensor Module
- DAQ card for fiber optic sensing DVS
- Acousto-Optic Modulator(AOM)
- 1550nm narrow linewidth laser module
- How to make distributed fiber optic distributed acoustic/vibration sensing (DAS/DVS)
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- BPD465C Balanced Photodetector Module
Distributed Acoustic Sensor Module
Distributed Acoustic Sensor hardware module, based on which you can more quickly implement your own distributed vibration measurement system, you only need to match the DAQ, and then focus on the implementation of software.
The distributed fiber optic DAS integrated module integrates high performance 3k narrow line width laser, AOM acousto-optic modulator, EDFA amplifier and other devices inside, and adopts coherent detection optical path, which has very sensitive technical characteristics. The DAS integrated module with a DAS special high-speed DAQ card and industrial control computer can realize the distributed fiber optic vibration sensing system.
Specification
| Parameter | symbol | minimum | Typical values | maximum | unit |
|---|---|---|---|---|---|
| Pulse width | Pulse | 10 | 100 | ns | |
| Operating wavelength | ?c | 1525 | 1550 | 1565 | nm |
| Measure distances | D | 40 | Km | ||
| Peak power | Pp | 30 | W | ||
| Long-term stability of output power | ?p | 0.02 | dB | ||
| Detection wavelength range | Ds | 1100 | 1700 | nm | |
| Probe responsiveness | Dr | 10 | mv/nA | ||
| Line width | Lw | 3 | kHz | ||
| Wavelength stability | Ws | 1 | pm | ||
| Side-mode rejection ratio | SMSR | 50 | dB | ||
| Relative intensity noise | RIN | -135 | dB/Hz | ||
| Operating voltage | Wv | 4.5 | 5.5 | V | |
| power consumption | Ps | 15 | W | ||
| Operating temperature | Tw | -20 | 60 | C | |
| Storage temperature | Ts | -40 | 80 | °C | |
| External control interface | RS232 | ||||
| size | L*W*H | 202*171*30 | MM | ||
Schematic diagram of DAS system
Screenshot of DAS test
