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Last modified by robert on 2024/05/17 16:52
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1 -integrated Distributed Acoustic Sensing (iDAS)
1 +Integrated Distributed Acoustic Sensing (iDAS)
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1 -XWiki.sima
1 +XWiki.robert
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186 186  * **Detailed Information:** See pages 19-23 of the Standard iDAS manual for comprehensive details on each mode.
187 187  
188 188  
189 -
190 190  === **Application Type Options** ===
191 191  
192 192  1. **Diagnostic Setup Only:**
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201 201  1*. Configures Data Output Frequency to 1000 Hz.
202 202  1*. Sets Data Output Spatial Resolution to 2 meters.
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205 205  [[image:1706508500303-165.png]]
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216 216  1*. Generated value: 50 nanoseconds.
217 217  1*. Spatial Extent: A 50ns pulse corresponds to a 10m spatial extent.
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220 220  [[image:1706508761205-307.png]]
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241 241  * **Control Mechanism:** The slider provides a precise control mechanism to manage the intensity of light sent through the fiber.
242 242  * **Monitoring and Adjustment:** Continuously monitor and adjust as necessary to ensure optimal performance.
243 243  
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249 +[[image:1706509232964-660.png]]
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252 252  
253 +== **Integrating GPS Antenna for Accurate Timing** ==
253 253  
255 +=== **Installation and Connection Process** ===
254 254  
257 +**Connecting the GPS Antenna:**
255 255  
259 +* Connect one end of a coaxial cable with SMB female connectors to the GPS antenna.
260 +* If you plan to mount the antenna, do so before connecting the cable.
261 +* Connect the other end of the cable to the 'GPS Ant.' port located on the output panel at the front of the iDAS unit.
256 256  
263 +=== **Monitoring GPS Status and Time** ===
257 257  
265 +* **GPS Information Display:** The GPS status and time are displayed on the Tool Bar of the iDAS software.
266 +* **Status Indicators:**
267 +** **Red:** Antenna is not connected.
268 +** **Amber:** Antenna connected, but self-survey not completed.
269 +** **Green:** Antenna connected, self-survey completed, and timing is accurate.
258 258  
271 +[[image:1706509432197-316.png]]
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261 261  
275 +**Primary Configuration Settings in iDAS**
262 262  
277 +These settings are integral to the operation of the iDAS system, significantly influencing aspects like the rate of data streaming. They encompass:
263 263  
279 +1. **Sampling Frequency:** Determines how often data is captured.
280 +1. **Spatial Resolution:** Defines the level of detail in spatial data.
281 +1. **Fiber Length:** Impacts the range over which data is collected.
264 264  
283 +In configuring these parameters, a balance must be struck. This involves aligning the system's physical capabilities, such as fiber length and spatial resolution, with the practical limits of data collection, including the volume of data generated. Adjusting these settings correctly is crucial for optimizing data quality while managing the data volume effectively. This balance ensures that the system meets the specific needs of each application without overwhelming storage or processing capabilities.
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265 265  === [[image:1706506304897-924.png]] ===
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