Figure 4
From: Opto-mechanical lab-on-fibre seismic sensors detected the Norcia earthquake
Illustration of the production steps: (a) Borosilicate glass ferrule with fabricated ridge and groove; (b) cantilevers attached to the ferrule; (c) proof mass fixed at the end of the cantilever; and (d) readout fibre attached to the sensor. (e) Front view of the accelerometer; (f) side view of the accelerometer.
