Changes for page Integrated Distributed Acoustic Sensing (iDAS)

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15	15	=== **System Components** ===
16	16
17		-**Interrogator Unit**
18	18
19		-* The heart of the iDAS system, this unit contains the laser source, a detector for capturing backscattered light, and electronics to process this signal. It's critical for generating and interpreting the data collected by the optical fiber.
	18	+The iDAS system consists of the following components:
20	20
21		-**Optical Fiber**
	20	+1. **Interrogator unit:** This unit houses the laser, detector, and electronics for processing the backscattered light signal. It records various settings such as the optical system configurations, spatial sampling rates, and the duration of data acquisition. More than one interrogator may be used in an experiment. Each unit should have a unique identifier and is described in its respective metadata block.
	21	+1. **Optical fiber:** The optical fiber is the sensor that is used to measure strain rate.
	22	+1. **Data acquisition software**: This software is used to control the interrogator unit and to acquire and process the data. It records various settings such as the optical system configurations, spatial sampling rates, and the duration of data acquisition.
22	22
23		-* This component acts as a long, distributed sensor. Strain rates along this fiber are what the iDAS system measures and analyzes.
	24	+----
24	24
25		-**Data Acquisition Software**
26		-
27		-* This software interfaces with the interrogator unit, allowing users to configure acquisition parameters, initiate data capture, and process the collected data.
28		-
29		-= =
30		-
31		-= =
32		-
33	33	= **DAS Data Collection System** =
34	34
35		-==== **1. Interrogator Unit** ====
	28	+==== **1. Surface Installation** ====
36	36
37		-* **Function:** The interrogator unit is the core component of a DAS system. It sends laser pulses through the optical fiber and measures the backscattered light.
38		-* **Recording Information:** It records various settings such as the optical system configurations, spatial sampling rates, and the duration of data acquisition.
39		-* **Multiple Interrogators:** More than one interrogator may be used in an experiment. Each unit should have a unique identifier and is described in its respective metadata block.
40		-
41		-==== **2. Surface Installation** ====
42		-
43	43	* **Cable Arrangement:** The optical fiber cable can be a single long continuous cable or multiple cables with connectors, used across different installation environments.
44	44	* **Cable Types:** Cables may vary in construction types based on the installation environment.
45	45	* **Geographical Metadata:** Parameters related to geographical location are specified for easy searchability in databases.
46	46
47		-==== **3. Fiber Optic Cable** ====
	34	+==== **2. Installation Environments** ====
48	48
49		-* **Cable Composition:** Several optical fibers may be enclosed within one cable.
50		-* **Metadata Identification:** The metadata identifies each individual fiber used in the acquisition, including its intrinsic properties.
51		-
52		-==== **4. Installation Environments** ====
53		-
54	54	* **Shallow Burial:** The cable can be shallowly buried.
55	55	* **In-Conduit Installation:** The cable can also be installed within a conduit.
56	56	* **Water Installation:** Suitable for underwater environments.
57	57
58		-==== **5. Channels** ====
	40	+==== **3. Channels** ====
59	59
60	60	* **Sensor Distribution:** Channels represent sensors distributed along the fiber array at fixed intervals.
61	61	* **Physical Location Determination:** The physical locations of these channels are ascertainable through methods like tap tests and GPS tracking.
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161	161	=== ===
162	162
163		-=== ===
	145	+----
164	164
165		-=== ===
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	148	+== **Operating System Compatibility:** ==
	149	+
	150	+* (((
	151	+The iDAS system software is designed to run on the Windows operating system, with the current version compatible with Windows 7.
	152	+)))
	153	+
	154	+=== **Accessing the System:** ===
	155	+
	156	+* **User Login:** The system is set up to log in automatically as "User", without requiring any credentials.
	157	+* **Software Shortcut:** A shortcut to access the iDAS software is conveniently placed on the desktop for easy access.
	158	+
	159	+== **Data Acquisition Controls** ==
	160	+
	161	+* **Start / Stop:** Easily control the start and stop of data acquisition using the current settings.
	162	+* **Calibrate Reference:** Recalibrate reference levels as needed.
	163	+* **Exit:** Safely exit the iDAS software.
	164	+
	165	+=== **Configuration (Refer to Section 2.3 of iDAS Manual)** ===
	166	+
	167	+* **iDAS Setup Wizard:** Provides a guided, step-by-step process for setting up the iDAS system.
	168	+* **iDAS Configuration:** Access the iDAS configuration window for advanced settings.
	169	+* **Trigger Mode:** Opens the trigger configuration window for specific acquisition needs.
	170	+
	171	+=== **Operating Modes (Refer to Section 2.4 of iDAS Manual)** ===
	172	+
	173	+* **Available Modes:** Acoustic, Waterfall, Stacking, Security, and OTDR.
	174	+* **Functionality:** Each mode presents the acoustic data from iDAS in unique formats.
	175	+* **Detailed Information:** See pages 19-23 of the Standard iDAS manual for comprehensive details on each mode.
	176	+
167	167	=== ===
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169	169	=== ===
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328	328	[[Caption>>image:1706488806394-168.png]]
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