ସିସେମୋମିଟର

ସିସେମୋମିଟର ଉପକରଣଟି ଓଜନିଆ ହୋଇଥିବାରୁ ଭୂମିକମ୍ପ ସମୟର ପୃଥିବୀ ପୃଷ୍ଠରେ ସମସ୍ତ ବସ୍ତୁ ଦୋଳନ କରୁଥିଲେ ମଧ୍ୟ ତାହା ନିଜ ସ୍ଥାନରେ ଦୃଢ଼ ଭାବରେ ରହିଥାଏ । ମାତ୍ର ଭୂମିକମ୍ପର ପ୍ରଭାବରେ ଏଥିରେ ଥିବା ଲିଭରଟି ଦୋଳନ କରୁଥାଏ । ଲିଭରଟିର ଦୋଳନକୁ ଗୋଟିଏ ଘୂରୁଥିବା ଡ୍ରମ ଉପରେ କାଗଜ ଖଞ୍ଜି ତାହା ଉପରେ ଲିପିବଦ୍ଧ କରାଯିବାର ବ୍ୟବସ୍ଥା ରହିଥାଏ । ସେହି ତଥ୍ୟରୁ ଭୂମିକମ୍ପ ସମ୍ପର୍କରେ ସୂଚନା ମିଳିଥାଏ । ଏଥିରୁ ଭୂମିକମ୍ପ ସୃଷ୍ଟିର ସ୍ଥାନ, ସମୟ ଓ ପରିମାଣ ଗଣନା କରାଯାଏ ।

ପ୍ରଥମେ ୧୮୫୫ ମସିହାରେ ଇଟାଲିର ଲୁଇଗି ପାଲ୍ମିରି ଗୋଟିଏ ସିସ୍ମୋଗ୍ରାଫ ଯନ୍ତ୍ର ଉଦ୍ଭାବନ କରିଥିଲେ । ମାତ୍ର ୧୮୮୦ ମସିହାରେ ଜନ୍ ମିଲ୍ନେ ଏକ ଆଧୁନିକ ସିସ୍ମୋଗ୍ରାଫ ତିଆରି କରିଥିଲେ ।

• ରିକ୍ଟର ସ୍କେଲ୍

 

ଉଇକିମିଡ଼ିଆ କମନ୍ସରେ ସିସେମୋମିଟର୍‌ ବାବଦରେ ମାଧ୍ୟମ ରହିଛି ।

• The history of early seismometers
• Link to live Seismic Drum at Geonet's Mangatainoka River station in New Zealand Archived 2005-09-01 at the Wayback Machine.
• The Lehman amateur seismograph, from Scientific American Archived 2009-02-04 at the Wayback Machine.- not designed for calibrated measurement.
• Sean Morrisey's professional design of an amateur teleseismograph 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.
• USGS evaluation of Streckheisen STS-2 Seismometer models Archived 2005-09-30 at the Wayback Machine.- Streckheisen is a common make of research seismometers
• Pacific Northwest Seismograph Network-PNSN is a seimograph network in the northwest USA
• SeisMac Archived 2010-03-06 at the Wayback Machine. is a free tool for recent Macintosh laptop computers that implements a real-time three-axis seismograph.
• 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.
• The Development Of Very-Broad-Band Seismography: Quanterra And The Iris Collaboration Archived 2016-08-10 at the Wayback Machine. discusses the history of development of the primary technology in global earthquake research.
• Video of seismograph at Hawaiian Volcano Observatory - on Flickr - retrieved on 2009-06-15.
• Seismoscope - Research References 2012
• Iris EDU - How Does A Seismometer Work?