The GY-DAQ-2510D acquisition card employs dual-channel 14-bit high-speed ADCs, featuring dual-channel 1GSps synchronous trigger sampling and supporting DAS data acquisition over distances exceeding 100km. With built-in phase demodulation algorithms, it can directly upload amplitude-phase demodulated data.
GY-DAQ-2510D as a DAS dedicated high-speed data acquisition card, using PCIe3.0 X8 interface to communicate with the host computer, onboard high- performance FPGA chip, onboard a new generation of Kintex UltraScale (KU060) 20nm process FPGA, with a wealth of digital processing units. By adopting large- capacity data cache and high-speed data transmission engine technology, it supports real-time uploading of demodulated data, and the data transmission rate can reach 4GB/s. The acquisition card adopts dual-channel 14-bit high-speed ADC, with dual-channel 1GSps synchronous trigger sampling, and supports DAS data acquisition of up to 100km. Built-in phase demodulation algorithm, can directly upload amplitude phase demodulation data, phase data can be directly used as vibration signal for users, without demodulation processing again, to achieve full cable demodulation. The driver has good compatibility, supports multiple versions of Windows and Linux, supports cross-platform use, and facilitates user integration.
Compared with the traditional IQ demodulation acquisition card, the acquisition card has a built-in phase demodulation algorithm module, which realizes coherent fading suppression and global demodulation, greatly improves the accuracy and stability of demodulated signals, and lays a foundation for subsequent signal processing and identification. It avoids the user still need to unwrap the operation after getting the data, reduces the system's requirements for CPU computing power, and also greatly reduces the user's development difficulty, realizing the simple operation of data reading and phase vibration.

| resolution ratio | 14bit |
|---|---|
| sampling rate | 1GSps |
| number of channels | 2 |
| analog bandwidth | 250MHz |
| input range | 2.72Vpp |
| coupling mode | AC |
| impedance | 50Ω |
| SNR (Signal to NoiseRatio) | 66dBc SFDR |
| acquisition mode | triggered acquisition |
| trigger source | Internal trigger: 3.3V/5V TTL outputExternal trigger: 3.3V TTL input |
| demodulation algorithm | coherent fading suppression all-fiberdemodulation |
| intermediate frequency | 80MHz or 200MHz |
| resolution ratio | 0.4m, 0.8m, 1.6m, 3.2m, 6.4m optional |
| gauge length | 2-32 sampling site |
| transmission interface | PCIe3.0 X8 |
| transmission rate | 4GB/s |
| power supply | 12V 3A |
| power dissipation | <20W |
| operating temperature | -25℃-70℃ |
| storage temperature | -40℃-85℃ |
| programmingenvironment | C, C++, python, maltab, etc. |
| system platform | Windows 、Linux |

| model | describe | remark |
|---|---|---|
| GY-DAQ-2510D | 1G sampling rate full phase demodulationacquisition card | Support 80MAOMmodulation or 200MAOMmodulation |