Distributed Fiber Optic Acoustic Sensing DAS Data Acquisition Card
WXG-DAQ-2480 is a dedicated high-speed data acquisition card for distributed fiber optic acoustic sensing DAS. It adopts PCIe interface to communicate with the host computer, and onboard high-performance FPGA chip with rich multiplier and RAM resources. By adopting large-capacity data cache and high-speed data transmission engine technology, it supports real-time uploading of raw data, and the data transmission rate can reach 2.2GB/s.
The acquisition card adopts dual-channel 14bit high-speed ADC with sampling rate of 250MSps, which can support DAS data acquisition over 52km at the highest. The built-in digital IQ demodulation algorithm can directly upload amplitude-phase demodulation data or upload and upload the original sampling data for users to demodulate by themselves. The driver has good compatibility, supports multiple versions of Windows and linux, supports cross-platform use, and is convenient for users to integrate and use.
Features
- PCIE x8 and Optical Module Interface
- Dual-channel synchronized sampling
- Built-in pulse trigger output function
- 250M sample rate, 14 bit
- Built-in IQ demodulation
- Supports raw acquisition as well as IQ demodulated acquisition
Applications
- Distributed Fiber Optic Acoustic Sensing DAS
- OTDR
WXG-DAQ-2480
Product Manuals: Download
Parameters
| Item | Value |
|---|---|
| Channel Number | 2 |
| Sampling Rate | 250MSps |
| Sampling Mode | 14bits dual-channel synchronized real-time sampling |
| Coupling Method | DC-coupled |
| Input Impedance | 50Ω |
| Input Voltage Range | 2Vpp |
| Bandwidth | 0-100MHz analog bandwidth |
| Settable Bias | ±1V bias programmable to fully utilize ADC range |
| SFDR | Up to 88dBc |
| Trigger Output Pulse | Support |
| PCIE | PCIe2.0 x8 high-speed transmission interface |
| Demodulation Algorithm | Built-in fiber optic sensing demodulation algorithm |
Interface definitions
- PCIe interface: for data transmission and parameter setting
- 10Gb optical port: reserved
- Ch1: Acquisition channel 1
- Ch2: Acquisition channel 2
- Trig-in: external trigger, 3.3V input
- Trig-out: internal capture trigger output, 3.3V/5V selectable
Temperature range
- Operating temperature: -20 ~ 60 ° C
- Storage temperature: -40~85°C
Dimensions
- 100mm(L)x70mm(W)x20mm(D)
Ordering Information
- WXG-DAQ-2480
Development Examples
- 250M DAS Data Acquisition Card C Call Example
- DAS capture card Python call example
- API Documentation
- Driver Installation Guide For Windows
- Driver Installation Guide For Linux
- DAS Capture Card Trigger Output TTL Is How Much V
- What is the temperature range for normal DAS DAQ operation?
- What algorithms are built into DAS data acquisition cards?
- Does it support 10 Gigabit optical interfaces?
- Does the DAS data acquisition card require an external power supply?
- Mechanical dimensions of the 250M DAS capture card
- WXG-DAQ-2480 capture card function call flow