Borehole seismometer component, 1980.
4 0 c m
 
31cm
actual image size: 23cm x 32cm

Borehole seismometer component, 1980.

© Science Museum / Science & Society Picture Library

Description

This is the vertical component of a three component set of seismometers, designed to fit down boreholes. The components weigh only a few grammes each and their movements are detected by coil and magnet jackets and cabled to the surface. They can be tuned to various frequencies according to their intended purpose.
 

Image Ref.

10284294
 

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