DTS-ETH-250M-2A 250MSps DAQ Board for Raman Distributed Temperature Sensing

The DTS-ETH-250M-2A is a specialized data acquisition card optimized for Raman distributed fiber optic temperature sensing (DTS) systems, designed to capture and process weak Raman scattering signals with high precision. It adopts a Gigabit Ethernet port for seamless data transmission with upper computers, supporting the small-end data format for fast and stable communication.

Equipped with 12-bit dual-channel synchronous acquisition, the card achieves a maximum sampling rate of 250MSps and a 0.4m spatial resolution, enabling accurate temperature detection and positioning along the entire fiber optic link. The built-in high-performance averaging engine supports up to 65536 times averaging, effectively suppressing noise and improving the signal-to-noise ratio — a critical requirement for Raman DTS systems to detect weak temperature signals.

Each channel supports a maximum of 32768 acquisition points, meeting the data collection needs of long-distance fiber optic temperature monitoring applications such as power cable monitoring, oil & gas pipeline temperature detection, and industrial tank temperature monitoring. The card offers two versions (with/without housing) to adapt to different system integration and installation environments.

Key Features

•  250MSps High-Speed Sampling
  12-bit dual-channel simultaneous real-time sampling, 0.4m ultra-high spatial resolution for precise temperature point positioning in Raman DTS.

• Gigabit Ethernet UDP Transmission
  Stable high-speed data transmission via Gigabit Ethernet port, UDP protocol for low latency, easy integration with DTS host systems.

• Ultra-High SNR Averaging Engine
  Built-in data averaging function, up to 65536 times averaging, delivers exceptional signal-to-noise ratio for weak Raman scattering signals.

• Large-Scale Acquisition Support
  32768 acquisition points per channel, meets the demand for long-distance fiber optic temperature monitoring (100+ km).

• Industrial-Grade Reliability
  -20~60℃ wide operating temperature range, 12V low-power supply, with/without housing options for diverse installation scenarios.

• Flexible Parameter Customization
  Support external trigger input, adjustable sampling points and averaging times, fully adapt to Raman DTS system requirements.

Specification

Dimension Drawing

Workflow

The DTS-ETH-250M-2A adopts UDP protocol for high-speed data communication with upper computers, with simple and easy-to-operate workflow and default parameters for quick system debugging:

• Default Communication Parameters：IP=192.168.137.2, Port=8028, Data Format=Small-end
• Default Acquisition Parameters：Sampling Points=16384, Averaging Times=30000
• Basic Workflow：Set acquisition parameters → Trigger sampling → Data transmission via UDP → Real-time data processing & temperature analysis

Ordering Guide

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