Seismographs Sentence Examples
Instruments largely employed for this purpose in Italy are ordinary pendulum seismographs as in fig.
From August 1994 until May 1997, a network of 8 three-component digital seismographs operated at the Acu reservoir.
The next class of instruments to be considered are seismometers or earthquake measurers, and seismographs or instruments which Se give diagrams of earthquake motion.
This type of apparatus has been replaced in Japan by what are called duplex pendulum seismographs.
The value of these records, as is the case with other forms of seismographs, is impaired by pronounced tiltings of the ground.Advertisement
The essential feature in these seismographs is a fairly heavy mass of metal, so suspended that although its supports are moved, some point in the mass remains practically at rest.