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Last modified by robert on 2026/02/27 19:58
From version 105.4
edited by robert
on 2026/02/17 15:44
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To version 100.1
edited by robert
on 2026/02/13 22:02
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Summary

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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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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 filter>>image:IGU16_N_huddle.png]]
435 -
436 -== IGU 16-1C ==
437 -
438 -The 1C nodes seem to have a slightly different response to the 3C (TBA)
439 -
440 -== BD3C-5 ==
441 -
442 - 'BD3C': {'poles':[(-1720.4+0j), (-1.2+0.9j), (-1.2-0.9j)],
443 - 'zeros':[(14164+0j), (-7162+0j), 0j, 0j],
444 - 'gain':1.69726e-05,
445 - 'sensitivity': 702651512.6046528}
446 -
447 -[[X axis is samples (.01 s), Y axis is velocity (m/s), 0.5-5 Hz filter>>image:BD3C_Z_huddle.png]]
448 -
449 -[[X axis is samples (.01 s), Y axis is velocity (m/s), 0.5-5 Hz filter>>image:BD3C_N_huddle.png]]
450 -
451 -== IGU-16 Horizontal noise & how to avoid ==
452 -
453 -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.
454 -
455 -[[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]]
456 -
457 -(% class="wikigeneratedid" %)
458 -The BD3C-5 nodes do not have this issue:
459 -
460 -[[BD3C-5 test, as above. There is no additional noise on the horizontal channels.>>image:BD3C_psd.png]]
461 -
462 462  = **Cleaning** =
463 463  
464 -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.
421 +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.
465 465  
466 466  = **Weights (for shipping)** =
467 467  
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561 561  |**Dimensions (LxHxW)**|558 x 357 x 300mm
562 562  |**Input rating**|100-210V - 50/60Hz
563 563  |**Power**|1000W
564 -|**Weight**|14.5 kg
565 -|**Weight with cables**|21 kg
521 +|**Weight**|14.5kg
522 +|**Weight with cables**|21kg
566 566  )))
567 567  
568 568  (% class="box" id="HSmartSoloBD3C-16PortableBatteryCharger" %)
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574 574  |**Dimensions (LxHxW)**|625 x 500 x 366mm
575 575  |**Input rating**|100-210V - 50/60Hz
576 576  |**Power**|100W
577 -|**Weight**|21.5 - 24 kg
578 -|**Capacity**|16 nodes
534 +|**Weight**|21.5 - 24kg
535 +|**Slots no.**|16
579 579  |**Download Speed**|20MB/sec/slot
580 580  )))
581 581  
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585 585  
586 586  [[image:20250729_124644.jpg]]
587 587  
588 -|**Dimensions (LxHxW)**|625 x 500 x 366 mm
589 -|**Input rating**|100-210V - 50/60 Hz
590 -|**Power**|640 W
591 -|**Weight**|26.3 kg
592 -|**Capacity**|16 nodes
545 +|**Dimensions (LxHxW)**|625 x 500 x 366mm
546 +|**Input rating**|100-210V - 50/60Hz
547 +|**Power**|640W
548 +|**Weight**|26.3kg
549 +|**Slots no.**|16
593 593  )))
594 594  
595 595  (% class="box" %)
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599 599  [[image:20250729_124957.jpg]]
600 600  
601 601  
602 -|**Dimensions (LxHxW)**|590 x 225 x 405 mm
603 -|**Weight**|8.2 kg
604 -|**Capacity**|6 nodes
559 +|**Dimensions (LxHxW)**|590 x 225 x 405mm
560 +|**Weight**|8.2kg
561 +|**Slots no.**|6
605 605  )))
606 606  
607 607  (% class="box" %)
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616 616  
617 617  18.0kg (full)
618 618  )))
619 -|**Capacity**|6 nodes
576 +|**Capacity**|6
620 620  )))
621 621  
622 622  (% class="box" %)
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627 627  
628 628  |**Dimensions (LxHxW)**|225 x 200 x 550mm
629 629  |**Weight**|
630 -|**Capacity**|8 nodes
587 +|**Capacity**|8
631 631  )))
632 632  )))
633 633  )))
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