An instrument for measuring the direction, duration, and force of earthquakes and like concussions.
A machine that measures the magnitude of earthquakes. siesmic Richter
A device to detect seismic waves consisting of a suspended mass and an electronic or mechanical amplification system.
an instrument that measures motion of the ground caused by earthquake waves.
a device that enables us to observe and / or record a ground motion, and it in general consists of an inertial system , i
a device that transforms the seismic energy of the earth into an electrical signal
an instrument for measuring earthquakes and other ground motions
an instrument used to detect and record earthquakes
an instrument used to record these vibrations and the resulting graph that shows the vibrations is called a seismograph
a sensor placed in the ground to detect vibrations of the earth
a very sensitive instrument that can detect movements of Earth's surface
An instrument that not only measures the time of the arrival of earthquake waves, but also allows the exact motion of the ground to be computed from the record.
An instrument designed to measure the motion of the ground.
an instrument that measures earthquake activity.
a device for receiving and recording shock waves set off by an explosion and reflected by underground rock formations.
The sensor part of the seismograph usually a suspended pendulum.
A device for measuring movements of the ground.
An instrument that detects ground movement from earthquakes.
The sensor part of a seismograph. A seismograph is a device for recording seismic waves (produced by earthquakes).
A device for recording data on the structure of the earth's crust by recording small sounds, obtained from distant earthquakes or man-made sources. An Ocean Bottom Seismometer (OBS) records data from the ocean bottom.
An instrument for measuring seismic waves generated by earthquakes or man-made explosions.
Seismometer (in Greek seismos = earthquake and metero = measure) are used by seismologists to measure and record the size and force of seismic waves. By studying seismic waves, geologists can map the interior of the Earth, and measure and locate earthquakes and other ground motions. The term seismograph is usually interchangeable, but seismometer seems to be a more common usage.