Question

how is seismograph work​

Answer 1

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• A seismograph is a device for measuring the movement of the earth, and consists of a ground- motion detection sensor, called a seismometer, coupled with a recording system. Seismographs operate on the principle of inertia. ... Modern research seismometers are electronic, and detect and record motions in all directions...

Answer 2

Answer:

How does a seismometer work?

An instrument sensitive to tiny movements in the ground

A seismometer is a device that is sensitive to vibrations. It works on the principle of a pendulum: a heavy, inert mass with a certain resistance to movement (i.e. inertia) due to its weight is suspended from a frame by a spring that allows movement. The energy from any seismic activity excites this “proof mass” as it is called by geophysicists, making it vibrate.

Explanation:

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