Changes for page SmartSolo Node Seismometers
Last modified by robert on 2026/02/27 19:58
Summary
-
Page properties (1 modified, 0 added, 0 removed)
Details
- Page properties
-
- Content
-
... ... @@ -427,14 +427,12 @@ 427 427 'gain':1, 428 428 'sensitivity': 257019225.55108312} 429 429 430 -[[X axis is samples (.01 s), Y axis is velocity (m/s) , 0.5-5 Hz filter>>image:IGU16_Z_huddle.png]]430 +[[X axis is samples (.01 s), Y axis is velocity (m/s)>>image:IGU16_Z_huddle.png]] 431 431 432 -[[X axis is samples (.01 s), Y axis is velocity (m/s) , 0.5-5 Hz filter>>image:IGU16_N_huddle.png]]432 +[[X axis is samples (.01 s), Y axis is velocity (m/s)>>image:IGU16_N_huddle.png]] 433 433 434 434 == IGU 16-1C == 435 435 436 -The 1C nodes seem to have a slightly different response to the 3C (TBA) 437 - 438 438 == BD3C-5 == 439 439 440 440 'BD3C': {'poles':[(-1720.4+0j), (-1.2+0.9j), (-1.2-0.9j)], ... ... @@ -442,13 +442,11 @@ 442 442 'gain':1.69726e-05, 443 443 'sensitivity': 702651512.6046528} 444 444 445 -*image TBA but they have been created in the past~-~- we are 100% confident our published responses are correct 446 - 447 447 == Horizontal noise & how to avoid == 448 448 449 449 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. 450 450 451 -[[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]] 447 +[[Power spectrum huddle test vs a CMG-6TD (S1) and TC120/Centaur combo, all filtered 0.5-5 Hz. The N and E channels have excess noise above 10Hz due to "sticking up" out of the ground.>>image:IGU16_spectrum.png]] 452 452 453 453 = **Cleaning** = 454 454