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Last modified by robert on 2024/05/17 16:52
From version 6.5
edited by Sima Mousavi
on 2024/01/29 14:36
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To version 6.4
edited by Sima Mousavi
on 2024/01/29 13:16
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1 -= **What is iDAS?** =
2 -
3 -**iDAS** stands for **Integrated Distributed Acoustic Sensing**. This advanced system utilizes the principle of Rayleigh backscattering in optical fibers to measure strain rates along the fiber's length. It's a cutting-edge technology predominantly used in fields like geophysics, where it's crucial for monitoring seismic activities, as well as in industrial applications like pipeline monitoring and security systems.
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5 -=== **Safety first!**
6 - ===
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8 -(% class="box warningmessage" %)
9 -The iDAS uses a Class 1 laser, which is generally considered safe for most applications. However, direct exposure to the eye should be avoided to prevent any risk of eye injury.
10 -\\Cables and fibers may create tripping hazards. Ensure that the routing of cables is done in a way that minimizes the risk of accidents.
11 -
12 -----
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14 14  = **DAS Data Collection System** =
15 15  
16 16  ==== **1. Interrogator Unit** ====
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42 42  * **Physical Location Determination:** The physical locations of these channels are ascertainable through methods like tap tests and GPS tracking.
43 43  * **Metadata for Channels:** Each channel or group of channels has its own metadata block, detailing specifics like location and properties.
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46 -[[image:1706489800616-982.png]]
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52 52  ----
53 53  
54 54  = **DAS Metadata Schema** =
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