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Last modified by robert on 2024/05/17 16:52
From version 12.20
edited by Sima Mousavi
on 2024/01/29 17:27
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To version 12.1
edited by Sima Mousavi
on 2024/01/29 16:37
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Summary

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185 185  * **Functionality:** Each mode presents the acoustic data from iDAS in unique formats.
186 186  * **Detailed Information:** See pages 19-23 of the Standard iDAS manual for comprehensive details on each mode.
187 187  
188 -
189 -
190 -=== **Application Type Options** ===
191 -
192 -1. **Diagnostic Setup Only:**
193 -1*. Retrieves current settings for a basic diagnostic overview.
194 -1. **Seismic Application:**
195 -1*. Sets Data Output Frequency to 1000 Hz.
196 -1*. Adjusts Data Output Spatial Resolution to 2 meters.
197 -1. **Flow Monitoring:**
198 -1*. Changes Data Output Frequency to 10,000 Hz.
199 -1*. Sets Data Output Spatial Resolution to 0.25 meters.
200 -1. **Security Monitoring:**
201 -1*. Configures Data Output Frequency to 1000 Hz.
202 -1*. Sets Data Output Spatial Resolution to 2 meters.
203 -
204 -
205 -[[image:1706508500303-165.png]]
206 -
207 -
208 -=== **Detailed Parameter Information** ===
209 -
210 -1. **Time Decimation and Output Decimation:**
211 -1*. These values are calculated based on the physical fiber length.
212 -1. **Measure Length (m):**
213 -1*. Generated value: 10176 meters.
214 -1*. Note: 'Measure Length' includes the reference fiber inside the iDAS unit, differentiating it from 'Physical Fibre Length'.
215 -1. **Pulse Width (ns):**
216 -1*. Generated value: 50 nanoseconds.
217 -1*. Spatial Extent: A 50ns pulse corresponds to a 10m spatial extent.
218 -
219 -
220 -[[image:1706508761205-307.png]]
221 -
222 -
223 -
224 -
225 -
226 -=== **Optimal Light Management** ===
227 -
228 -* **Objective:** Achieve balanced light distribution across the region of interest in the iDAS system.
229 -
230 -=== **Adjustment Guidelines** ===
231 -
232 -1. **Setting Optical Power:**
233 -1*. Aim to have the start of the region of interest around or below +4000 units.
234 -1*. Ensure the far end of the region of interest does not enter a non-linear response scheme.
235 -1. **Consideration for Short Fibers:**
236 -1*. In cases where the fiber length is short and non-linear effects are not observed, set the Optical Power to its maximum.
237 -1*. **Power Scale:** The adjustment slider ranges from 0-100, representing the percentage of maximum power available.
238 -
239 -=== **Note on Optical Power Control** ===
240 -
241 -* **Control Mechanism:** The slider provides a precise control mechanism to manage the intensity of light sent through the fiber.
242 -* **Monitoring and Adjustment:** Continuously monitor and adjust as necessary to ensure optimal performance.
243 -
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245 -[[image:1706509177362-144.png]]
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251 -XXXXXXXXXXX
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253 -[[image:1706509232964-660.png]]
254 -
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256 -
257 -== **Integrating GPS Antenna for Accurate Timing** ==
258 -
259 -=== **Installation and Connection Process** ===
260 -
261 -**Connecting the GPS Antenna:**
262 -
263 -* Connect one end of a coaxial cable with SMB female connectors to the GPS antenna.
264 -* If you plan to mount the antenna, do so before connecting the cable.
265 -* Connect the other end of the cable to the 'GPS Ant.' port located on the output panel at the front of the iDAS unit.
266 -
267 -=== **Monitoring GPS Status and Time** ===
268 -
269 -* **GPS Information Display:** The GPS status and time are displayed on the Tool Bar of the iDAS software.
270 -* **Status Indicators:**
271 -** **Red:** Antenna is not connected.
272 -** **Amber:** Antenna connected, but self-survey not completed.
273 -** **Green:** Antenna connected, self-survey completed, and timing is accurate.
274 -
275 -[[image:1706509432197-316.png]]
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