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Changes for page Seismometers

Last modified by robert on 2025/06/15 15:01
From version 26.1
edited by robert
on 2024/01/11 10:25
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

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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 -(% class="box" %)
47 -(((
48 -= 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//
49 49  
50 -= [[image:Trillium compact120.jpg]] =
51 -
52 -|**Sensitivity**|120 seconds
53 -|**Size (Diameter x Height)**|9 x 13 cm
54 -|**Weight**|1.1 kg
49 +[[image:LE3Dlite.jpg||alt="LE-3Dlite"]]
50 +//Figure 2: LE-3Dlite MKII//
55 55  )))
56 -
57 -(% class="box" %)
58 -(((
59 -= Trillium Compact PostHole 120 =
60 -= [[image:Trillium compact posthole.jpg]] =
61 -
62 -|**Sensitivity **|120 seconds
63 -|**Size (Diameter x Height)**|10 x 17 cm
64 -|**Weight**|3.1 kg"
65 65  )))
66 -
67 -(% class="box" %)
68 -(((
69 -= Lennartz LE-3D-Lite MkII =
70 -= [[image:LE3Dlite.jpg||data-xwiki-image-style-alignment="~"center~""]] =
71 -
72 -|**Sensitivity **|1 second
73 -|**Size (Diameter x Height)**|? x ? cm
74 -|**Weight**|? kg
75 -)))
76 -)))
77 -)))
Trillium compact 120.jpg
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