ixDAS-3000A High-Performance Distributed Acoustic Sensor (DAS) Interrogators

■ High-fidelity restoration of vibration waveforms with high sensitivity and high linearity;

■ Fading suppression ensuring flat response across the entire optical fiber;

Product Series :

ixDAS-3000

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Product Details

The ixDAS-3000A high-performance distributed acoustic sensor (DAS) interrogator utilizes AllianStream Photonics’ proprietary pulse compression coding modulation DAS technology. This cutting-edge technology transmits coded pulse laser probe signals into sensing fibers, receiving and analyzing the backscattered light signals to gather vibration and acoustic information along optical cables stretching up to hundreds of kilometers. This technology addresses the typical trade-offs between spatial resolution and detection sensitivity found in conventional DAS systems and overcomes issues with coherent fading that plague standard DAS implementations. It can cover significantly longer distances compared to traditional DAS. The ixDAS-3000A represents a significant advancement in distributed acoustic sensing, offering unparalleled performance in precision, range, and adaptability for a wide array of demanding applications.

Key Features:

Advanced Pulse Compression Coding Modulation Technology: Enhances the detection and measurement capabilities, allowing for precise real-time monitoring.

High Spatial Resolution: Provides detailed insights into vibration events over extended distances.

Ultra-Long Sensing Distance: Efficiently manages signal degradation over long-distance optical cables.

Extremely Low-Frequency Response: Capable of detecting very low-frequency events, expanding monitoring capabilities.

Applications:

Seismic Monitoring and Marine Geophysics: Valuable for studying geological formations and seismic activity.

Oil and Gas Exploration: Useful for detecting and analyzing subterranean vibrations.

Petroleum Logging: Assists in identifying and monitoring petroleum deposits and structures.

Underground Space Imaging: Supports the visualization and monitoring of subsurface environments.

Specifications:

Model	ixDAS-3000A
Measurand	Strain / Strain rate
Max. Sensing Range	≥ 100 km
Spatial Resolution (Gauge Length)	1 m (minimum)
Spatial Sampling Interval	0.1 m (minimum)
Response Frequency	0.001 Hz ~ 50 kHz
Sampling Rate	100 kSps (maximum)
Self-Noise Level ¹	2 pε/√Hz @20 Hz @1 km 20 pε/√Hz @20 Hz @50 km
Dynamic Range	≥ 120 dB @ 10 Hz (Sampling rate = 100 kSps)
Fiber and Connector	SMF / MMF / Specialty fiber cable, FC/APC
Fiber Quality Monitoring	A real-time backscattering relative intensity profile output provided
Channels	1
Output Data	Phase profile, backscattering relative intensity profile
Synchronous Timing	GPS
Data Interface	1GbE RJ45, 10GbE RJ45, and USB 3.2
Operation Temperature	- 10 ℃ to 40 ℃
Sizes	2U + 4U chassis
Power Supply	100 ~ 240 VAC, 700 W

Note: ¹ Median value over full length of 1 km single-mode fiber (Gauge length = 10m; Sampling rate = 2 kSps).

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