Brillouin Acquisition Card ZC-BOTDA-001
OVERVIEW
Overview
ZC-BOTDA-001 is the acquisition and analysis board designed for distributed Brillouin temperature and strain monitoring: two channels at 250 MSa/s and 14 bit, on-board Golay complementary coding and differential pulse pair encode/decode with averaging, 100 m to 104 km sensing fibre per channel, ±1 °C temperature accuracy, ±20 με strain accuracy, 0.8 m spatial resolution at 25 km range, and both BOTDA and BOTDR operation.
CORE STRENGTHS
Core strengths
- 01
Real-time dual channel
- 02
250 MSa/s · 14 bit
- 03
Golay coding + DPP
- 04
Up to 104 km
Key specifications
| Parameter | Value |
|---|---|
| Model | ZC-BOTDA-001 |
| Product type | Distributed Brillouin sensing and analysis board |
| Input channels | 2 (SMA input) |
| ADC resolution | 14 bit |
| Sampling rate | 250 MHz per channel |
| Input voltage range | −1.8 — 1.8 V |
| Input impedance | 50 Ω |
| Channel isolation | 95 dB |
| SNR | 70.6 dB |
| Sync trigger outputs | 2 × TTL 3.3 V (SMA output) |
| Sensing fibre length | 100 m — 104 km |
| Max sensing channels | 2 |
| Temperature accuracy | ±1 °C （depends on optical performance） |
| Strain accuracy | ±20 με （depends on optical performance） |
| Spatial resolution | 0.8 m at 25 km range; 3.2–26 m at 100 km range |
| Parameter | Value |
|---|---|
| Noise averaging | 4 — 32768 （configurable） |
| On-board algorithms | Golay complementary coding, differential pulse pair, averaging |
| Operation modes | BOTDA / BOTDR |
| FPGA | Xilinx Zynq7-100 （900 pins, speed grade 2） |
| Processor | Dual-core ARM9 with RTOS |
| On-board memory | DDR3 4 GB |
| Data upload | Gigabit Ethernet |
| Expansion port | FEP (Fast Expand Port) |
| Fan control | PWM, adjusted automatically by chip temperature |
| Power | 12 V / 2 A, 12 W |
| Board size | 175.2 × 105.7 mm （6 × M4 mounting holes, optional aluminium heat-sink enclosure） |
| Operating temperature | −20 — 55 °C |
| Storage temperature | −20 — 70 °C |
| Relative humidity | 5% — 90% |
| More |