ভূকম্পমাপক: সংশোধিত সংস্করণের মধ্যে পার্থক্য
বিষয়বস্তু বিয়োগ হয়েছে বিষয়বস্তু যোগ হয়েছে
সম্পাদনা সারাংশ নেই |
|||
২৯ নং লাইন:
*[[রিখটার পরিমাপ]]
==তথ্যসূত্র==
{{reflist|colwidth=30em}}
== External links ==
{{Commons category|Seismometers}}
*[http://neic.usgs.gov/neis/seismology/history_seis.html The history of early seismometers]
* [http://www.geonet.org.nz/mrz-drum.html Link to live '''Seismic Drum''' at Geonet's Mangatainoka River station in New Zealand]
* [http://psn.quake.net/lehman.txt The Lehman amateur seismograph, from Scientific American]- not designed for calibrated measurement.
* [http://www.eas.slu.edu/People/STMorrissey/index.html Sean Morrisey's professional design of an amateur teleseismograph] [http://www.bryantlabs.net/VertSeis.html Also see Keith Payea's version] Both accessed 2010-9-29 Morrissey was a professional seismographic instrument engineer. This superior design uses a zero-length spring to achieve a 60 second period, active feedback and a uniquely convenient variable reluctance differential transducer, with parts scavenged from a hardware store. The frequency transform is carefully designed, unlike most amateur instruments. Morrisey is deceased, but the site remains up as a public service.
* [http://geohazards.cr.usgs.gov/staffweb/mcnamara/Pubs/Reports/sts2OFR2.0.pdf USGS evaluation of Streckheisen STS-2 Seismometer models]- Streckheisen is a common make of research seismometers
* [http://www.pnsn.org/ Pacific Northwest Seismograph Network]-PNSN is a seimograph network in the northwest USA
* [http://www.suitable.com/tools/seismac.html SeisMac] is a free tool for recent Macintosh laptop computers that implements a real-time three-axis seismograph.
* [http://www.iris.edu The Incorporated Research Institutions for Seismology (IRIS)] is a principal U.S. seismological instrumentation and data facility, principally supported by the [[National Science Foundation]] and the [[U.S. Department of Energy]].
* [http://www.aip.org/history/pubs/collabs/phase2rep2.htm#appendixB The Development Of Very-Broad-Band Seismography: Quanterra And The Iris Collaboration] discusses the history of development of the primary technology in global earthquake research.
* [http://www.flickr.com/photos/waiferx/2658307394/in/set-72157606105014024/ Video of seismograph at [[Hawaiian Volcano Observatory]]] - on [[Flickr]] - retrieved on 2009-06-15.
[[বিষয়শ্রেণী:ভূতত্ত্ববিদ্যা]]
[[en:seismometer]]
| |||