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Changes for page ANU Seismic Data Loggers

Last modified by robert on 2025/11/04 15:36
From version 67.1
edited by robert
on 2025/09/16 13:22
Change comment: There is no comment for this version
To version 70.1
edited by robert
on 2025/11/04 15:35
Change comment: There is no comment for this version

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217 217  For the most part, the data logger response essentially flat when the samplerate output is set to 100 Hz or less and for seismological purposes is likely to be impossible to detect below 20 Hz regardless.
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219 -Instrument response can be downloaded from IRIS [[Nominal Response Library>>https://ds.iris.edu/ds/nrl/]] if need be, or [[directly from us>>http://auspass.edu.au/data/logger_response]] , or by downloading the response of an equivalent sensor at AusPass (e.g. get_stations(level='response') ).
219 +Instrument response can be downloaded from IRIS [[Nominal Response Library>>https://ds.iris.edu/ds/nrl/anurses]] if need be, or [[directly from us>>http://auspass.edu.au/data/logger_response]] , or by downloading the response of an equivalent sensor at AusPass (e.g. get_stations(level='response') ).
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222 222  [[Amplitude and phase response for ANU logger at 50 Hz>>image:ANU_50hz_response.png||data-xwiki-image-style-alignment="center" height="356" width="475"]]
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239 239  Earliest known model is dated May 2011 (but first deployed November 2012) and still in use today. Potentially capable of housing much larger batteries than the TSAWR due to the larger cavity space.
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241 +We have found that the older LPR SD card slots can sometimes fail such that the data cards prematurely "pop out" during recording, which can be catastrophic. This seems to mostly occur in periods of hot weather, but not always. We have developed a small add-on that screws into the nearby serial port that effectively holds the cards in place and will ship included with these loggers. Screw the device in firmly, then **gently** slide over a pre-inserted card until it is flush with the top of the card. It probably won't slide over all the way and that's by design. Take care not to force the depress the card inadvertently (although testing has shown it will still record).
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243 + [[image:LPR_card_adaptors.jpg||alt="image of the LPR SD-card adapter"]]
244 +
241 241  = ANU "ANUSR" (Gen 1, 2003? - 2012) =
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243 243  This logger has been retired for a long time and has a different instrument response. It used modular component boards and was powered via an acrylic case of 6 x 6V lantern batteries. There is a somewhat complete one above the CAT lab door if anyone is so inclined to have a look.
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284 284  (% class="box" %)
285 285  (((
286 286  = TerraSAWR Specs =
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344 344  )))
LPR_card_adaptors.jpg
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