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Changes for page Seismometers

Last modified by robert on 2025/06/15 15:01
From version 41.1
edited by robert
on 2025/06/15 15:01
Change comment: There is no comment for this version
To version 32.1
edited by Jack Dent
on 2025/01/02 10:47
Change comment: There is no comment for this version

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1 -XWiki.robert
1 +XWiki.JackD
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8 8  
9 9  == Nanometrics ==
10 10  
11 -Currently, 4 kinds of nanometric broadband seismic sensors are available. The Trillium Compact 120, Trillium Compact 20, Trillium Compact Posthole, and most recently, the Trillium Compact Horizon. These seismometers are ideal for long-term deployments of multiple months. All of these seismometers are compatible with the LPR-200 and TSAWR loggers and are designed for low energy consumption.
11 +Currently, 4 kinds of nanometric broadband seismic sensors are available. The Trillium Compact 120, Trillium Compact 20, Trillium Compact Posthole, and most recently, the Trillium Compact Horizon. These seismometers are ideal for long-term deployments of multiple months. All of these seismometers are compatible with the LPR-200 and TSAWR loggers and are designed for low energy consumption.
12 12  
13 13  === Trillium Compact 120 ===
14 14  
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.
15 +The Trillium Compact 120 has a recording range between 120 seconds and 100Hz.
16 16  
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]]
17 +What info?
18 18  
19 -=== Trillium Compact 20 ===
19 +- Recording frequency range?
20 20  
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.
21 +- Sensitivity?
22 22  
23 +- Adjustable feet and levelling bubble?
24 +
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  
27 +=== Trillium Compact 20 ===
28 +
29 +The Trillium compact has a recording range between 20 seconds and 100Hz. These instruments also have a tilt tolerance of 10° making for efficient deployment.
30 +
31 +​​​​​​​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]]
32 +
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. 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.
35 +The Trillium Compact Posthole is designed with a robust casing allowing it to be deployed without a vault or protective case.
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.
41 +=== ===
34 34  
35 -=== SmartSolo Broadbands ===
36 -
37 -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.
38 -
39 39  = Short period sensors =
40 40  
41 41  Short-period (SP) sensors have limited sensitivity to longer periods, but are otherwise perfectly suitable for earthquake or other high-frequency analysis. They are generally defined as any instrument that begins to **lose sensitivity at periods larger than 10 seconds**. They tend to be smaller and more mechanically robust to broadband sensors.
42 42  
43 -=== Lennartz Electronic LE-3D Lite (MkII) ===
47 +== Lennartz Electronic LE-3D Lite (MkII) ==
44 44  
45 -The LE-3D Lites are small, robust, short period sensors with a a corner period of 1 second.
49 +etc
46 46  
47 -=== SmartSolo Short periods ===
51 +== Sub-paragraph ==
48 48  
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.
53 +etc
50 50  
51 51  
52 -= Channel and Instrument conventions =
56 +== Channel and Instrument conventions ==
53 53  
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
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/]]
75 75  )))
76 76  
77 77  (% class="col-xs-12 col-sm-4" %)
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82 82  
83 83  (% class="box" %)
84 84  (((
85 -Trillium Compact 120
69 += Trillium Compact 120 =
86 86  
87 -[[image:Trillium compact120.jpg]]
71 += [[image:Trillium compact120.jpg]] =
88 88  
89 89  |**Frequency Band**|120 seconds to 100 Hz
90 90  |**Sensitivity**| 754 V/m/s
... ... @@ -94,9 +94,9 @@
94 94  
95 95  (% class="box" %)
96 96  (((
97 -Trillium Compact PostHole 120
81 += Trillium Compact PostHole 120 =
98 98  
99 -[[image:Trillium compact posthole.jpg]]
83 += [[image:Trillium compact posthole.jpg]] =
100 100  
101 101  |**Frequency Band**|120 seconds to 100 Hz
102 102  |**Sensitivity**| 754 V/m/s
... ... @@ -104,23 +104,12 @@
104 104  |**Weight**|3.1 kg
105 105  )))
106 106  
107 -(% class="box" %)
108 -(((
109 -Trillium Compact Horizon
110 110  
111 -[[image:20250305_100107.jpg]]
112 -
113 -|**Frequency Band**|120 seconds to 100 Hz
114 -|**Sensitivity**|754 V/m/s
115 -|**Size (Diameter x Height)**|8.6 x 13.8 cm
116 -|**Weight**|1.1 kg
117 -)))
118 -
119 119  (% class="box" %)
120 120  (((
121 -Lennartz LE-3D-Lite MkII
94 += Lennartz LE-3D-Lite MkII =
122 122  
123 -[[image:LE3Dlite.jpg||data-xwiki-image-style-alignment="~"center~""]]
96 += [[image:LE3Dlite.jpg||data-xwiki-image-style-alignment="~"center~""]] =
124 124  
125 125  
126 126  |**Frequency Band**|1 seconds to 100 Hz
20250305_100107.jpg
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