LECTURE 6 OUTLINE - SEISMIC INSTRUMENTATION (updated 11/10/97)
Instructor: Professor Barbara Romanowicz
Director of Seismological Laboratory
Office Hours: Thursday 2-4 pm , upon appointment only
475 Mc Cone Hall
SEISMIC INSTRUMENTATION
References:
Bolt, Earthquakes, Chapter 3.
Gere and Shah, Terra Non Firma, Chapter 5.
Richter, Elementary Seismology, Chapters 12,15,23.
1. Definitions
Seismoscope
Seismograph
Seismometer
Seismogram
2. Historical Progression
3. Principles of a seismometer
Basic Physics
Instrument response
Damping, sensitivity
Keeping Time, UTC, local time
Amplification
Dynamic Range
short period, long period, broadband seismometers
4. Ground Motion
seismic noise, microseisms
disturbances other than earthquakes
weak motion, strong motion
Installation precautions
5. Modern seismic stations
evolution of recording and telemetry
global and regional seismic networks