AOGS 2019

Date

Nanometrics is in Singapore this week for the 2019 Asia Oceania Geosciences Society (AOGS). Stop by booth B06 to speak with Alastair Fenwick or Jiandong Wang and get a demo of our Pegasus Ecosystem.

 

AOGS

 

Product Presentation

Pegasus Data Acquisition System - a Revolutionary New Ecosystem for Portable Monitoring Campaigns 

Presented by: Alastair Fenwick

When: Tuesday July 30, 3:30pm-4pm (Session 4)

Where: Innovation Theatre.

 

Poster Presentations

Trillium Slim Borehole 120, a New Small-diameter High-performance Seismometer

Presenting Author: Alastair Fenwick

When: Thursday, August 1, 2019 1:30 PM - 3:30 PM

Where: SE08-A015

 

New Very Low Power Broadband Seismic Digitizer for Dense Autonomous Research Arrays

Presenting Author: Alastair Fenwick

When: Thursday, August 1, 2019 1:30 PM - 3:30 PM

Where: SE08-A016

 

Presentation Abstracts

Pegasus Data Acquisition System - a Revolutionary New Ecosystem for Portable Monitoring Campaigns. 

This presentation will demonstrate how the new Pegasus is an intuitive and versatile data acquisition system covering the full spectrum of portable applications from long term broadband to full waveform, full wavefield imaging. Deliberately designed with every modular component thoughtfully integrated to provide the most intuitive experience, every aspect of the Pegasus ecosystem is optimized for simplicity and ease-of-use ensuring the highest possible data quality and availability from even the most demanding project environment.

Class-leading power consumption allows everything about the Pegasus platform to be small, lightweight and modular. The exceptionally low power consumption significantly reduces battery requirements, overall station size and weight allowing for the efficient deployment of more stations for a longer period of time. The modular nature opens up broad choices in battery chemistry and sensor technologies, facilitating transport logistics and matching station design to the needs of the science. Flexible and modular, the Pegasus digital recorder supports single, dual or 3-component analog sensors including: meteorological sensors, broadband seismometers, microbarometers, geophone sensors and strong motion accelerometers.

The presentation will also show how the Pegasus ecosystem is simple to deploy, service and data are easy to recover, whether you are working with a handful of units or many hundreds. Data recovery is via lightning-fast USB 3.0, where one month of ready-to-process MiniSEED data, StationXML metadata and comprehensive project audit information, including merging ancillary data, can be seamlessly downloaded in under 10 seconds. Pegasus is the only system that can scale to meet the Large-N challenge.

 

Poster Abstracts 

Trillium Slim Borehole 120, a New Small-diameter High-performance Seismometer

 

The new Trillium Slim Borehole 120 seismometer is a 104 mm diameter instrument with Trillium 120QA/PH class performance having significantly improved SWaP (size, weight and power). It is designed for smaller holes down to 115 mm diameter, in shallow or deep deployment, using a simple passive holelock or sand installation. The small diameter permits deployment in existing small boreholes, and facilitates construction of new lower cost boreholes, minimizing disturbance of the surrounding rock and improving instrument coupling. We present initial test results for this instrument in small and large diameter cased holes, direct burial, and side-by-side pier testing. High performance with simpler logistics makes the Trillium Slim Borehole well suited for many applications, including new higher-density arrays for full waveform analysis and detection of earthquake gravity signals. In conclusion we present a proposed array design for optimal measurement of earthquake gravity signals on a regional scale.

 

New Very Low Power Broadband Seismic Digitizer for Dense Autonomous Research Arrays

 

The seismic research community has been looking for solutions and equipment for temporary array studies in broadband and mixed sensor deployments. Researchers needing high resolution broadband waveforms have lacked station density because of broadband system availability, capital costs, logistical costs, time to deploy stations and the complexity of the systems. 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. This digitizer is a complementary recording system with posthole type broadband sensors and direct burial techniques. The digitizer power is less than 200mW for three channels. It is very small (<1.25 liters), lightweight (<.5 kg) and IP68 rated for immersion with a robust enclosure for autonomous operations in all terrestrial environments. Installation and servicing is simplified by an intuitive user interface, applications and digitizer features. This ecosystem makes reaping the data very fast, verified and reliable while field station operational review is completed quickly and with certainty. Coupled with a Nanometrics directly buriable broadband sensor the total station power for a state of the art Trillium broadband station is less than .5W. An optional fourth channel can be used for a geophysical high resolution sensor such as an infrasound device, tilt meter or absolute pressure sensor. Metadata is FDSN compliant and created on the digitizer and the waveforms are available in MiniSEED data format along with comprehensive project/station audit information. For remote operational awareness and logistical planning there is a very low power SOH(state of health) of heath telemetry option.