New High Resolution Very Low Powered Broadband Digitizer System, Pegasus

Date: 4/24/2019

Time: 11:00 AM

Room: Grand Crescent

The seismic research community has been looking for solutions and equipment for temporary array studies in broadband and mixed sensor deployments including Large-N science. Nanometrics is addressing this need with the introduction of the Pegasus digital recorder and supporting ecosystem which is designed to provide high resolution recording in temporary networks and remote environments. Data is recovered science ready and the Pegasus is compatible with not only broadband sensors, but with geophones and various other types of instrumentation.

The exceptionally low power consumption of the Pegasus digital recorder (<200mW) significantly reduces battery requirements, overall station size is less than 1.25 liters in volume, it is lightweight at less than.5kg and is IP68 rated for immersion. The enclosure is robust for autonomous operations in all terrestrial environments enabling efficient deployment of more stations for a longer period of time. Installation and servicing is simplified with applications and features making data harvesting fast, verified and reliable while field station operational review is completed quickly and with certainty. Stand-alone power is less than <200mW for three channels and a power cycled GNSS timing system. Coupled with the Nanometrics Trillium directly buriable broadband sensors the lowest possible total station power is less than 0.4W. A fourth high resolution channel can be used for complimentary geophysical sensors, such as infrasound, tilt meter or absolute pressure sensor. The Pegasus digitizer will work with other conventional analog out seismic sensors, such as geophones and accelerometers and has standard community data storage formats that are essentially archive ready leveraging the research community archive services. Data is complete and ready-to-process, with MiniSEED waveforms, StationXML metadata compliant to FDSN standards and comprehensive project audit information. For really remote operational awareness and logistical planning there is a very low power SOH(state of health) of heath telemetry option.

Presenting Author: Bruce Townsend

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