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Changes for page Seismometers

Last modified by robert on 2025/06/15 15:01
From version 39.1
edited by Jack Dent
on 2025/03/24 14:10
Change comment: There is no comment for this version
To version 41.1
edited by robert
on 2025/06/15 15:01
Change comment: There is no comment for this version

Summary

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Author
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1 -XWiki.JackD
1 +XWiki.robert
Content
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12 12  
13 13  === Trillium Compact 120 ===
14 14  
15 -The Trillium Compact 120 has sensitivity band between 120 seconds and 100Hz but is prone to corrosion when buried for long periods. They have a tilt tolerance of ~~10° but come with adjustable feet for leveling.
15 +The Trillium Compact 120 has sensitivity band between 120 seconds and 100 Hz but is prone to corrosion when buried for long periods. They have a tilt tolerance of ~~10° but come with adjustable feet for leveling.
16 16  
17 17   For more information, refer to the Nanometrics instrument information sheet: [[https:~~/~~/nanometrics.ca/hubfs/Downloads/Data%20Sheets/trillium_compact.pdf?hsLang=en-ca>>https://nanometrics.ca/hubfs/Downloads/Data%20Sheets/trillium_compact.pdf?hsLang=en-ca]]
18 18  
19 19  === Trillium Compact 20 ===
20 20  
21 -The Trillium compact has a recording range between 20 seconds and 100H. but is prone to corrosion when buried for long periods. They have a tilt tolerance of ~~10° but come with adjustable feet for leveling.
21 +The Trillium compact has a recording range between 20 seconds and 100 Hz. but is prone to corrosion when buried for long periods. They have a tilt tolerance of ~~10° but come with adjustable feet for leveling.
22 22  
23 23  For more information, refer to the Nanometrics instrument information sheet: [[https:~~/~~/nanometrics.ca/hubfs/Downloads/Data%20Sheets/trillium_compact.pdf?hsLang=en-ca>>https://nanometrics.ca/hubfs/Downloads/Data%20Sheets/trillium_compact.pdf?hsLang=en-ca]]
24 24  
25 25  (% style="color:inherit; font-family:inherit; font-size:max(18px, min(20px, 14.4444px + 0.462963vw))" %)Trillium Compact Posthole
26 26  
27 -The Trillium Compact Posthole is designed with a robust casing allowing it to be deployed via direct-burial without a vault or protective case. It does NOT have leveling feet nor a bubble (**bring your own!**), nor can its mass be rebalanced remotely. The cable is also quite a bit more stiff so may require burial at an increased depth. If installed inside a vault, the cable may also unbalance the sensor if left by itself. The instrument response is identical to a Trillium Compact 120.
27 +The Trillium Compact Posthole is designed with a robust casing allowing it to be deployed via direct-burial without a vault or protective case. It does NOT have leveling feet nor a bubble (**bring your own!**), nor can its mass be rebalanced. The cable is also quite a bit more stiff so may require burial at an increased depth. If installed inside a vault, the cable may also unbalance the sensor if left by itself. The instrument response is identical to a Trillium Compact 120.
28 28  
29 29  For more information, refer to the Nanometrics instrument information sheet:  [[https:~~/~~/nanometrics.ca/hubfs/Downloads/Data%20Sheets/trillium_compact_ph.pdf?hsLang=en-ca>>https://nanometrics.ca/hubfs/Downloads/Data%20Sheets/trillium_compact_ph.pdf?hsLang=en-ca]]
30 30  
31 31  === Trillium Compact Horizon ===
32 32  
33 -The Trillium Compact Horizon is sort of a mix between the Posthole and Compact 120, ideal for shallow direct bury deployments or instances where packing weight and size is an important consideration. Its response and sensitivity is identical to the Trillium Compact 120
33 +The Trillium Compact Horizon is sort of a mix between the Posthole and Compact 120, ideal for shallow direct bury deployments or instances where packing weight and size is an important consideration. Its response and sensitivity is identical to the Trillium Compact 120.
34 34  
35 -**~*~*ADD PICTURES~*~***
36 -
37 37  === SmartSolo Broadbands ===
38 38  
39 39  Two types of SmartSolo brand seismometers are currently available, one of which is a broadband seismometer. More information is available on the SmartSolo Seismometers page.
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44 44  
45 45  === Lennartz Electronic LE-3D Lite (MkII) ===
46 46  
47 -etc
45 +The LE-3D Lites are small, robust, short period sensors with a a corner period of 1 second.
48 48  
49 49  === SmartSolo Short periods ===
50 50  
51 -Two types of SmartSolo brand seismometers are currently available, one of which is a short-period seismometer. More information is available on the SmartSolo Seismometers page.
49 +Two types of SmartSolo brand seismometers are currently available, one of which is a short-period seismometer with corner frequency of 5 Hz. More information is available on the SmartSolo Seismometers page.
52 52  
53 -etc
54 54  
55 -
56 56  = Channel and Instrument conventions =
57 57  
58 -We follow FDSN guidelines for sensor channel and type naming conventions, outlined at [[SAGE / IRIS>>https://ds.iris.edu/ds/nodes/dmc/data/formats/seed-channel-naming/]]
54 +We follow FDSN guidelines for sensor channel and type naming conventions, outlined at [[SAGE / IRIS>>https://ds.iris.edu/ds/nodes/dmc/data/formats/seed-channel-naming/]] and also copied below:
55 +
56 +|=Band code|=Band type|=Sample rate (Hz)|=Corner period (sec)
57 +|F|…|≥ 1000 to < 5000|≥ 10 sec
58 +|G|…|≥ 1000 to < 5000|< 10 sec
59 +|D|…|≥ 250 to < 1000|< 10 sec
60 +|C|…|≥ 250 to < 1000|≥ 10 sec
61 +|E|Extremely Short Period|≥ 80 to < 250|< 10 sec
62 +|S|Short Period|≥ 10 to < 80|< 10 sec
63 +|H|High Broad Band|≥ 80 to < 250|≥ 10 sec
64 +|B|Broad Band|≥ 10 to < 80|≥ 10 sec
65 +|M|Mid Period|> 1 to < 10|
66 +|L|Long Period|≈ 1|
67 +|V|Very Long Period|≈ 0.1|
68 +|U|Ultra Long Period|≈ 0.01|
69 +|R|Extremely Long Period|≥ 0.0001 to < 0.001|
70 +|P|On the order of 0.1 to 1 day ^^1^^|≥ 0.00001 to < 0.0001|
71 +|T|On the order of 1 to 10 days ^^1^^|≥ 0.000001 to < 0.00001|
72 +|Q|Greater than 10 days ^^1^^|< 0.000001|
73 +|A|Administrative Instrument Channel|variable|NA
74 +|O|Opaque Instrument Channel|variable|NA
59 59  )))
60 60  
61 61  (% class="col-xs-12 col-sm-4" %)
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94 94  
95 95  [[image:20250305_100107.jpg]]
96 96  
97 -|**Frequency Band**|120 seconds to 108 Hz
113 +|**Frequency Band**|120 seconds to 100 Hz
98 98  |**Sensitivity**|754 V/m/s
99 99  |**Size (Diameter x Height)**|8.6 x 13.8 cm
100 100  |**Weight**|1.1 kg