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Changes for page Seismometers

Last modified by robert on 2025/06/15 15:01
From version 19.1
edited by robert
on 2024/01/10 21:17
Change comment: There is no comment for this version
To version 4.7
edited by robert
on 2023/12/12 12:34
Change comment: There is no comment for this version

Summary

Details

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4 4  (((
5 5  = Broadband sensors =
6 6  
7 -Broadband (or BB) sensors are especially sensitive to low frequency energy, and are //broad//ly defined as any instrument capable of **reliably recording wave periods greater or equal to 10 seconds**. This makes them useful for analysis and detection of teleseismic earthquakes as well as techniques involving ambient noise. However they are also well-suited for measuring high frequency energy, limited only by the Nyquist frequency of the [[data logger>>doc:Instrumentation.ANU LPR-200.WebHome]]'s sampling rate. The downside to broadband sensors is usually their cost, size, and fragility relative to short period sensors.
7 +Broadband (or BB) sensors are especially sensitive to low frequency energy, and are //broad//ly defined as any instrument capable of **reliably recording wave periods greater or equal to 10 seconds**. This makes them useful for analysis and detection of teleseismic earthquakes as well as techniques involving ambient noise. However they are also well-suited for measuring high frequency energy, limited only by the Nyquist frequency of the [[data logger>>doc:Instrumentation.Data Loggers.WebHome]]'s sampling rate. The downside to broadband sensors is usually their cost, size, and fragility relative to short period sensors.
8 8  
9 9  == Nanometrics ==
10 10  
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43 43  {{toc/}}
44 44  {{/box}}
45 45  
46 -~{~{box title="= Trillium Compact 120 =
46 +[[image:Screenshot 2023-12-12 at 12-28-47 Trillium Compact Nanometrics.png||alt="TC120s"]]
47 +//Figure 1: Trillium Compact 120s//
47 47  
48 -= [[image:Trillium compact120.jpg||data-xwiki-image-style-alignment="~"center~"" height="~"231~"" width="~"219~""]] =
49 -
50 -|(% style="~"width:115px~"" %)**Sensitivity **|(% style="~"width:112px~"" %)120 seconds
51 -|(% style="~"width:115px~"" %)**Size (Diameter x Height)**|(% style="~"width:112px~"" %)9 x 13 cm
52 -|(% style="~"width:115px~"" %)**Weight**|(% style="~"width:112px~"" %)1.1 kg
53 -~{~{/box}}
54 -
55 -{{box title="= Trillium Compact Posthole =
56 -
57 -= [[image:Trillium compact posthole.jpg]] =
58 -
59 -|(% style=~"width:115px~" %)**Sensitivity **|(% style=~"width:112px~" %)120 seconds
60 -|(% style=~"width:139px~" %)**Size (Diameter x Height)**|(% style=~"width:88px~" %)10 x 17 cm
61 -|(% style=~"width:139px~" %)**Weight**|(% style=~"width:88px~" %)3.1 kg"}}
62 -
63 -{{/box}}
64 -
65 -{{box title="= Lennartz LE-3D-Lite Mk2 =
66 -
67 -= [[image:LE3Dlite.jpg||data-xwiki-image-style-alignment=~"center~"]] =
68 -
69 -|(% style=~"width:115px~" %)**Sensitivity **|(% style=~"width:112px~" %)2? seconds
70 -|(% style=~"width:139px~" %)**Size (Diameter x Height)**|(% style=~"width:88px~" %)? x ? cm
71 -|(% style=~"width:139px~" %)**Weight**|(% style=~"width:88px~" %)? kg"}}
72 -
73 -{{/box}}
49 +[[image:LE3Dlite.jpg||alt="LE-3Dlite"]]
50 +//Figure 2: LE-3Dlite MKII//
74 74  )))
75 75  )))
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