Improved reliable accelerometers suitable for wide deployment in seismic arrays are needed for earthquake prediction studies. Researchers are developing a fiber-optic-accelerometer system that provides the desired performance improvements of broad-band, wide dynamic range, and low power consumption, as well as the following significant benefits and features: (1) broad-band response (
I 00 Hz); (2) wide dynamic range (on the order of 140 to 160 dB); (3) low power consumption; (4) robust construction (no moving parts); (5) capability to operate in any orientation; (6) low maintenance cost; (7) high reliability (no moving parts); and (8) high radiation tolerance (suitable for nuclear plant deployment).The potential commercial application as described by the awardee: The results of the effort will be a rugged fiber-optic accelerometer system that may be used in earthquake prediction studies, geophysical exploration, seismic profiling, and nuclear test-ban treaty monitoring.
