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Changes for page Seismometers

Last modified by robert on 2025/06/15 15:01
From version 32.1
edited by Jack Dent
on 2025/01/02 10:47
Change comment: There is no comment for this version
To version 40.1
edited by robert
on 2025/03/25 09:14
Change comment: There is no comment for this version

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1 -XWiki.JackD
1 +XWiki.robert
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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 a recording range between 120 seconds and 100Hz.
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 -What info?
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 -- Recording frequency range?
19 +=== Trillium Compact 20 ===
20 20  
21 -- Sensitivity?
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 -- Adjustable feet and levelling bubble?
24 -
25 25  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]]
26 26  
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 -
33 33  (% style="color:inherit; font-family:inherit; font-size:max(18px, min(20px, 14.4444px + 0.462963vw))" %)Trillium Compact Posthole
34 34  
35 -The Trillium Compact Posthole is designed with a robust casing allowing it to be deployed without a vault or protective case.
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.
36 36  
37 37  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]]
38 38  
39 39  === Trillium Compact Horizon ===
40 40  
41 -=== ===
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.
42 42  
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 +
43 43  = Short period sensors =
44 44  
45 45  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.
46 46  
47 -== Lennartz Electronic LE-3D Lite (MkII) ==
43 +=== Lennartz Electronic LE-3D Lite (MkII) ===
48 48  
49 -etc
45 +The LE-3D Lites are small, robust, short period sensors with a a corner period of 1 second.
50 50  
51 -== Sub-paragraph ==
47 +=== SmartSolo Short periods ===
52 52  
53 -etc
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.
54 54  
55 55  
56 -== Channel and Instrument conventions ==
52 += Channel and Instrument conventions =
57 57  
58 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/]]
59 59  )))
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66 66  
67 67  (% class="box" %)
68 68  (((
69 -= Trillium Compact 120 =
65 +Trillium Compact 120
70 70  
71 -= [[image:Trillium compact120.jpg]] =
67 +[[image:Trillium compact120.jpg]]
72 72  
73 73  |**Frequency Band**|120 seconds to 100 Hz
74 74  |**Sensitivity**| 754 V/m/s
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78 78  
79 79  (% class="box" %)
80 80  (((
81 -= Trillium Compact PostHole 120 =
77 +Trillium Compact PostHole 120
82 82  
83 -= [[image:Trillium compact posthole.jpg]] =
79 +[[image:Trillium compact posthole.jpg]]
84 84  
85 85  |**Frequency Band**|120 seconds to 100 Hz
86 86  |**Sensitivity**| 754 V/m/s
... ... @@ -88,12 +88,23 @@
88 88  |**Weight**|3.1 kg
89 89  )))
90 90  
87 +(% class="box" %)
88 +(((
89 +Trillium Compact Horizon
91 91  
91 +[[image:20250305_100107.jpg]]
92 +
93 +|**Frequency Band**|120 seconds to 100 Hz
94 +|**Sensitivity**|754 V/m/s
95 +|**Size (Diameter x Height)**|8.6 x 13.8 cm
96 +|**Weight**|1.1 kg
97 +)))
98 +
92 92  (% class="box" %)
93 93  (((
94 -= Lennartz LE-3D-Lite MkII =
101 +Lennartz LE-3D-Lite MkII
95 95  
96 -= [[image:LE3Dlite.jpg||data-xwiki-image-style-alignment="~"center~""]] =
103 +[[image:LE3Dlite.jpg||data-xwiki-image-style-alignment="~"center~""]]
97 97  
98 98  
99 99  |**Frequency Band**|1 seconds to 100 Hz
20250305_100107.jpg
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