Seismographs
An earthquake is a sudden shaking of the ground. They generate seismic waves which can be recorded on a sensitive instrument called a seismograph.Seismograph often used to mean seismometer. The record of ground shaking recorded by the seismograph is called a seismogram. Seismometers are tool or instruments that amount and record movements from the earth, including those of seismic waves generated by quakes, atomic explosion, and other seismic sources.
Now high-technology, digital seismographs record ground / earth shaking over a big band of frequences and seismic amplitudes. Nowadays seismometers are called broadband because capable to sense ground motion across a wide range of frequencies, from thousands of seconds to less than a hundredth of a second.
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nomis seismographs inc
NOMIS Seismographs has been recognized as a leading manufacturer of seismic monitoring equipment for the constuction, mining, quarrying and demolition fields since 1982. ,
From: http://nomis.com/
howstuffworks quot;how does a seismograph work? what is the richter scale
Therefore, most seismographs involve a large mass of some sort. You could make a very simple seismograph by hanging a large weight from a rope over a table.
From: http://www.howstuffworks.com/question142.htm
seismographs keeping track of earthquakes
USGS Earthquake Hazards Program, responsible for monitoring, reporting, and researching earthquakes and earthquake hazards
From: http://earthquake.usgs.gov/learn/topics/seismology/keeping_track.php
seismographs
This page gives one an overview of seismographs and how they work.
From: http://earthquakescanada.nrcan.gc.ca/info-gen/smeters-smetres/seismograph-eng.php
what is a seismograph?
Earthquakes generate seismic waves which can be detected with a sensitive instrument called a seismograph. Advances in seismograph technology have increased our understanding of
From: http://www.thetech.org/exhibits_events/online/quakes/seismo/
seismographs define seismographs at dictionary com
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From: http://dictionary.reference.com/browse/seismographs
how are earthquakes studied?
How Are Earthquakes Studied? Seismologists study earthquakes by going out and looking at the damage caused by the earthquakes and by using seismographs.
From: http://www.geo.mtu.edu/UPSeis/studying.html
faqs seismographs
USGS Earthquake Hazards Program, responsible for monitoring, reporting, and researching earthquakes and earthquake hazards
From: http://earthquake.usgs.gov/learn/faq/?categoryID=7
seismometer wikipedia the free encyclopedia
Analog seismographs require analog recording equipment, possibly including an analog-to-digital converter. The output of a digital seismographs can be simply input to a computer.
From: http://en.wikipedia.org/wiki/Seismometer
seistronix exploration seismographs
Seistronix manufactures, leases and sells exploration seismographs and related geophysical equipment for oil, gas, mineral and general geotechnical exploration
From: http://seistronix.com/
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