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Last modified by robert on 2026/06/29 16:42
From version 110.8
edited by Jack Dent
on 2026/06/15 10:17
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To version 95.2
edited by KB
on 2026/01/19 13:42
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1 -XWiki.JackD
1 +XWiki.KB
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6 6  
7 7  ANSIR supply two types of three-channel nodes, and one type of one-channel node:
8 8  
9 -* **SmartSolo IGU-16HR 3C (5 Hz, 'very' short period)**
9 +* **SmartSolo IGU 16HR 3C (5 Hz, 'very' short period)**
10 10  * **SmartSolo BD3C-5 (5 second, short period)**
11 -* **SmartSolo IGU-16 1C (5 Hz, 'very' short period, single channel. Not 'HR')**
11 +* **SmartSolo IGU 16 1C (5 Hz, 'very' short period, single channel)**
12 12  
13 -Visit the [[SmartSolo page>>https://smartsolo.com/igu.html]] for more detail.
14 -
15 15  The three-channel nodes have a theoretical battery capacity of ~~30 days, whereas the single-channel type has a capacity of ~~50 days. The programming, operation and downloading procedures for all types of SmartSolo nodes are also similar.
16 16  
17 17  (% class="box infomessage" %)
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25 25  
26 26  The nodes must be programmed in the SoloLite software prior to use. The screenshots below show our recommended parameters for the 5 Hz (16HR-3C) and 5 second (BDC3-5) nodes.
27 27  
28 -[[IGU16HR-3C programming screen set at 250 Hz. Ensure circled areas are set!>>image:5Hz_node_programming.labels.png||alt="IGU-16 3C programming screen"]]
26 +[[IGU-16 3C programming screen set at 250 Hz. Ensure that the circled areas are set!>>image:5Hz_node_programming.labels.png||alt="IGU-16 3C programming screen"]][[image:5S_node_programming.labels.png||alt="BD3C-5 programming screen"]][[image:5S_node_programming.labels.png]]
29 29  
30 -[[BD3C-5 programming screen set at 250 Hz. Ensure circled areas are set!>>image:5S_node_programming.labels.png||alt="BD3C-5 programming screen set at 250 hz. Ensure that the circled areas are set!"]]
28 +BD3C-5 programming screen set at 250 hz. Ensure that the circled areas are set!
31 31  
32 -
33 33  FIFO (first in, first out) data mode is safest as this will overwrite old data in case you forgot to clear the storage. At <= 250 hz you can fit 4++ months of data on these, shouldn't be an issue.
34 34  
35 35  Note that the samplerate is instead given in sample spacing, in milliseconds. 4 ms = 250 Hz, 1 ms = 1000 Hz, 10 ms = 100 Hz, ad nauseam.
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71 71  
72 72  We have experienced interference from animals (foxes, dogs, goats) digging up and carrying nodes off for tens or hundreds of metres. It is helpful to minimise human and food smells (particularly on the rope handles) when working in areas where this is a risk. Or, wipe down affected nodes with 50-80% methylated spirits if extensive handling can not be avoided.
73 73  
74 -If you come to collect your node and it is missing~-~- LOOK FOR IT! It may not have gotten far. We have found dozens of nodes by spending 15 minutes looking for them.
75 -
76 76  = **Installation** =
77 77  
78 78  (% class="box infomessage" %)
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312 312  
313 313  * Once a new project is created, the Data Transfer View panel will display connected nodes with details like series number and data size.
314 314  * If “Prospect not matched” appears, it simply means the new project doesn’t match the original programming project. This is not a concern.
315 -* Select all nodes and right-click to “force download”. This starts the download process.[[image:Smartsolo harvesting #4 copy.png]]
310 +* Select all nodes and right-click to “force download”. This starts the download process.
316 316  * Completed downloads will appear as new folders in the Downloaded Data panel.
317 317  )))
318 318  1. (((
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319 319  **Exporting Data in Readable Format**:
320 320  
321 321  * Go to the “Tool” menu and select “export seismic data”.
322 -* Tailor other parameters to project preference and ensure "Sample Interval" matches the setting used during node reset.
317 +* Tailor other parameters to personal preference and ensure "Sample Interval" matches the setting used during node reset.
318 +* Click “prepare” followed by “run” to start reformatting. Monitor this process in the small panel at the bottom left.
323 323  * (% class="box warningmessage" %)
324 324  (((
325 -**Ensure export data is set to "COUNTS" (int32), not "mV" (float). This is critical!**
321 +* **Ensure to export data as "COUNTS" (int32), not "mV" (float). This is critical!**
322 +
323 +* **Set "Remove Gain" to the same decibel gain as during programming. By default ANU sets this to 24db for short period nodes (a scaling factor of 15.848932), and 6db (a factor of 2.0) for broadband nodes.**
326 326  )))
327 -* Set "Remove Gain" to the same decibel gain as during programming. By default ANU sets this to 24db for short period nodes (a scaling factor of 15.848932), and 6db (a factor of 2.0) for broadband nodes.
328 -* Set 'Remove DC' to 'Yes' to centre the data around the zero value
329 -* Set the correct Start Time (UTC) and End Time (UTC) of the project to prevent the unnecessary export of older data
330 -* [[image:Smartsolo harvesting #9 copy.png]]
331 -* Click “prepare” followed by “run” to start reformatting. Monitor this process in the small panel at the bottom left.
332 -* The data will be exported to the SOLODATA folder. For a windows system, the following file explorer page is where you must navigate to to locate your project folder
333 333  )))
334 334  
335 335  == Smart Solo IGU-16HR Polarity Notice ==
336 336  
337 -See [[5Hz Node Polarity Issues>>https://auspass.edu.au/xwiki/bin/view/Data/AusPass%20Data/#HSmartSoloNodePolarityIssues]] for discussion. If data is headed to AusPass, we prefer to invert the IGU-16HR channel data manually rather than in the SoloLite software or inverting the response metadata.
329 +See [[https:~~/~~/auspass.edu.au/xwiki/bin/view/Data/AusPass%20Data/#HSmartSoloNodeZPolaritybug>>https://auspass.edu.au/xwiki/bin/view/Data/AusPass%20Data/#HSmartSoloNodeZPolaritybug]] for discussion. If data is headed to AusPass, we prefer to invert the IGU-16HR channel data manually rather than in the SoloLite software or inverting the response metadata.
338 338  
339 -**The BD3C-5 data does not require any sort of polarity inversion.**
331 +**The BD3C-5 data does not require a polarity inversion.**
340 340  
341 341  == 18 Leap Second bug ==
342 342  
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396 396  **Finalizing the Download**:
397 397  
398 398  * After downloading, mark the //"D"// box on your temporary labels to indicate completion.
391 +
392 +
399 399  )))
400 400  
395 +[[image:1706153266647-145.png||data-xwiki-image-style-alignment="center" height="340" width="603"]]
401 401  
402 402  
403 403  
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418 418  
419 419  ----
420 420  
421 -= Instrument Response =
422 -
423 -We are aware that there are various different published responses for these instruments and trust very few of them. One has to be careful with how polarity is handled between groups as well, and if one is working in integer counts (the ANSIR default) or mV (unclear why anyone would use this as it makes file sizes enormous). The response information published below is in **counts** and seems to fit well in huddle tests. Note that the response is the same for all channels and all units (e.g. there are no bespoke calibrations!), all appear to be sample rate insensitive, and the IGU data has been inverted (multiplied by -1) as described here: [[5Hz Node Polarity Issues>>https://auspass.edu.au/xwiki/bin/view/Data/AusPass%20Data/#HSmartSoloNodePolarityIssues]]
424 -
425 -== IGU 16HR-3C ==
426 -
427 - '16HR3C': {'poles':[(-22.211059+22.217768j), (-22.211059-22.217768j)],
428 - 'zeros':[0j, 0j],
429 - 'gain':1,
430 - 'sensitivity': 257019225.55108312}
431 -
432 -[[X axis is samples (.01 s), Y axis is velocity (m/s), 0.5-5 Hz filter>>image:IGU16_Z_huddle.png]]
433 -
434 -[[X axis is samples (.01 s), Y axis is velocity (m/s), 0.5-5 Hz bandpass filter>>image:IGU16_N_huddle.png]]
435 -
436 -== IGU 16-1C ==
437 -
438 -The 1C nodes seem to have the same response as the 3-channel IGU-16HR-3C (above), however the response posted at IRIS-NRL seems to imply that there is no poles and zeros information (e.g. a flat/linear response). This is 100% not so.
439 -
440 -[[IGU-16 1C, X axis is samples (.01 s), Y axis is velocity (m/s), 0.5-5 Hz bandpass filter. Seems to be same response as IGU-16HR-3C.>>image:IGU16_1C_Z_huddle.png]]
441 -
442 -== BD3C-5 ==
443 -
444 - 'BD3C': {'poles':[(-1720.4+0j), (-1.2+0.9j), (-1.2-0.9j)],
445 - 'zeros':[(14164+0j), (-7162+0j), 0j, 0j],
446 - 'gain':1.69726e-05,
447 - 'sensitivity': 702651512.6046528}
448 -
449 -Above 0.5 Hz, the BD3C-5 response fits well:
450 -
451 -[[X axis is samples (.01 s), Y axis is velocity (m/s), 0.5-5 Hz filter>>image:BD3C_Z_huddle.0.5.png]]
452 -
453 -[[X axis is samples (.01 s), Y axis is velocity (m/s), 0.5-5 Hz bandpass filter>>image:BD3C_N_huddle.0.5.png]]
454 -
455 -(% class="wikigeneratedid" %)
456 -Below the corner frequency (0.2 Hz) the phase response still fares well, but amplitude response may need to be dialed in a bit (it seems a bit high). In the next two figures the filter is **0.1** to 5 Hz:
457 -
458 -
459 -[[BD3C **0.1 **to 5 Hz bandpass filter>>image:BD3C_Z_huddle.0.1.png]]
460 -
461 -[[BD3C **0.1** to 5 Hz bandpass filter>>image:BD3C_N_huddle.0.1.png]]
462 -
463 -== IGU-16 Horizontal noise & how to avoid ==
464 -
465 -The** 5 Hz nodes** are susceptible to horizontal noise due to the placement of geophones in the units, **but this can be mitigated by completely burying the units flush with the ground.** In the below example, the node was set on the floor of our basement set on its plastic carrying case support. As such the amount of horizontal noise noticeably increases above ~~ 10Hz.
466 -
467 -[[IGU-16HR-3C Power spectrum huddle test vs a CMG-6TD (S1) and TC120/Centaur combo. The N and E channels have excess noise above 10Hz due to "sticking up" out of the ground.>>image:IGU16_spectrum.png]]
468 -
469 -(% class="wikigeneratedid" %)
470 -The BD3C-5 nodes do not have this issue:
471 -
472 -[[BD3C-5 test, as above. There is no additional noise on the horizontal channels.>>image:BD3C_psd.png]]
473 -
474 474  = **Cleaning** =
475 475  
476 -When assembled, the nodes are water resistant but not submersible. They can handle a good spray and wipe-down. A stiff plastic brush is helpful to reach areas between the metal spikes on the bottom.
418 +When assembled, the nodes are water resistant but not submersible. They can handle a good spray and wipe-down. A strong, non-wire brush is helpful to reach areas between the metal spikes on the bottom.
477 477  
478 478  = **Weights (for shipping)** =
479 479  
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573 573  |**Dimensions (LxHxW)**|558 x 357 x 300mm
574 574  |**Input rating**|100-210V - 50/60Hz
575 575  |**Power**|1000W
576 -|**Weight**|14.5 kg
577 -|**Weight with cables**|21 kg
518 +|**Weight**|14.5kg
519 +|**Weight with cables**|21kg
578 578  )))
579 579  
580 580  (% class="box" id="HSmartSoloBD3C-16PortableBatteryCharger" %)
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586 586  |**Dimensions (LxHxW)**|625 x 500 x 366mm
587 587  |**Input rating**|100-210V - 50/60Hz
588 588  |**Power**|100W
589 -|**Weight**|21.5 - 24 kg
590 -|**Capacity**|16 nodes
531 +|**Weight**|21.5 - 24kg
532 +|**Slots no.**|16
591 591  |**Download Speed**|20MB/sec/slot
592 592  )))
593 593  
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597 597  
598 598  [[image:20250729_124644.jpg]]
599 599  
600 -|**Dimensions (LxHxW)**|625 x 500 x 366 mm
601 -|**Input rating**|100-210V - 50/60 Hz
602 -|**Power**|640 W
603 -|**Weight**|26.3 kg
604 -|**Capacity**|16 nodes
542 +|**Dimensions (LxHxW)**|625 x 500 x 366mm
543 +|**Input rating**|100-210V - 50/60Hz
544 +|**Power**|640W
545 +|**Weight**|26.3kg
546 +|**Slots no.**|16
605 605  )))
606 606  
607 607  (% class="box" %)
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611 611  [[image:20250729_124957.jpg]]
612 612  
613 613  
614 -|**Dimensions (LxHxW)**|590 x 225 x 405 mm
615 -|**Weight**|8.2 kg
616 -|**Capacity**|6 nodes
556 +|**Dimensions (LxHxW)**|590 x 225 x 405mm
557 +|**Weight**|8.2kg
558 +|**Slots no.**|6
617 617  )))
618 618  
619 619  (% class="box" %)
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623 623  [[image:20250729_124502.jpg]]
624 624  
625 625  |**Dimensions (LxHxW)**|230 x 340 x 310mm
626 -|**Weight**|(((
627 -3.6kg (empty)
628 -
629 -18.0kg (full)
568 +|**Weight**|3.6kg
569 +|**Slots no.**|6
630 630  )))
631 -|**Capacity**|6 nodes
632 -)))
633 633  
634 634  (% class="box" %)
635 635  (((
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639 639  
640 640  |**Dimensions (LxHxW)**|225 x 200 x 550mm
641 641  |**Weight**|
642 -|**Capacity**|8 nodes
580 +|**Slots no.**|6
643 643  )))
644 644  )))
645 645  )))
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