The Thailand roadshow

The Thailand roadshow

Seismic Instruments for Active Faults Monitoring, Engineering Seismology and Earthquake Early Warning

Geobit and World Tech Enterprise Ltd present an exclusive geophysics lecture event, Seismic Instruments for Active Faults Monitoring, Engineering Seismology and Earthquake Early Warning in Bangkok, Thailand.

In this seminar, earthquake monitoring tools will be presented for proactive faults detection, as well as engineering science and monitoring to advance earthquake warnings, to be helpful in coping when situations occur and preparing for the future of Thailand.

The event will take place at Ibis Style Hotel Bangkok Ratchada, Bangkok, Thailand on Tuesday 13 December 2022, 09:00 local time.

Registrations are free and can be done here.

Geobit is exhibiting at The Earthquake Expo Asia

Geobit is exhibiting at The Earthquake Expo Asia

Natural Disasters Expo Asia 2022

We are pleased to announce that Geobit is exhibiting at the Earthquake Expo Asia 2022, part of the Natural Disasters Expo Asia 2022. We welcome you to visit our booth, to meet our team and learn about our new upcoming instruments and technologies. We will also be available to answer your questions.

The exhibition is being held 7–8 December 2022 at Singapore Expo, Hall 3, 1 Expo Drive, Singapore 486150.

Opening Times:

Wednesday, 7th December 2022
10am – 5pm

Thursday, 8th December 2022
10am – 4pm

We hope to see you there!

When: 7 - 8 December 2022

Where: Singapore Expo, Hall 3, 1 Expo Drive, Singapore, 486150

Natural Disaster Expo is segmented into 4 zones: Flood, Earthquake, Heat & Fire and Storm, bringing visitor focus to the most costly natural disasters in the world. It is a destination for disaster preparedness experts and emergency responce professionals to discover the newest disaster-related products, services and advancements in order to maximize recovery methods and increase the efficiency of community outreach.

Geobit to discuss with future resellers and distributors

After years of cooperation with advanced geophysical companies in limited areas of Asia, we are now open to discuss the expansion of our network.

If you are interested in becoming a Geobit reseller or Distributor, we are welcome you in our booth #916 to discuss details and opportunities.

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Geobit sponsored the 16th Congress of Geological Society of Greece

Geobit sponsored the 16th Congress of Geological Society of Greece

16th International Congress of the Geological Society of Greece

We are pleased to announce that Geobit is exhibiting and sponsoring as Gold Sponsor, the 16th International Congress of the Geological Society of Greece 2022. We welcome you to visit our booth, to meet our team and learn about our new upcoming instruments and technologies. We will also be available to answer your questions.

The Congress of the Geological Society of Greece is being held 17–19 September 2022 in Patras, Greece.

We hope to see you there!

When: 17 - 19 October 2022

Where: Conference & Cultural Center of the University of Patras, Patras, Greece

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Geobit exhibits at 3ecees, 4-9 Sep. 2022

Geobit exhibits at 3ecees, 4-9 Sep. 2022

3rd European Conference on Earthquake Engineering & Seismology

We are pleased to announce that Geobit is exhibiting at 3rd European Conference on Earthquake Engineering and Seismology, 4-9 September. We welcome you to visit our booth, to meet our team and learn about our new upcoming instruments and technologies. We will also be available to answer your questions. You can watch our poster presentations on Monday 5th and Wednesday 7th of September.

The European Conference on Earthquake Engineering and Seismology is being held 4–9 September 2022 in Bucharest, Romania.

We hope to see you there!

When: 4 - 9 September 2022

Where: Palace of Parliament, Strada Izvor 2-4, Sector 5, Bucharest.

Geobit’s poster presentation schedule

Poster number: 9352

Turning a linear geometry force balance accelerometer to a broad-band seismometer: Design, modelling, and evaluation

  • Presentation: Nikos Germenis
  • Date: Mon, 5 Sep.

Geo-S120 Broadband Seismometer

Abstract: In this work we present a prototype broadband seismometer which is based on a previously designed force-balance accelerometer. The mechanical system has been redesigned to meet the required self-noise levels of the system and the electronic part has been modified in a way to produce velocity output providing the desired sensitivity. The mechanical part has been extensively simulated and adjusted for having the main oscillation mode frequency into the desired recording band and having all other oscillation modes frequencies far outside the used recording band. The electronic part has been carefully designed towards very low electronic noise, which in addition with the mechanical system noise, will result in a total sensor self-noise level, lower the New Low Noise Model (NLNM) in a wide band range. The sensor has been extensively tested and compared against a commercial seismometer, with similar specifications in terms of self-noise. The experiment proved that the new prototype sensor performed equally to the reference unit. The new design offers a simpler sensor at a lower cost.

Poster number: 1955

A new force balance accelerograph for earthquake and structural monitoring based on a linear geometry accelerometer.

  • Presentation: Nikos Germenis
  • Date: Wed, 7 Sep.

    Abstract: In this work we present a new force balance accelerograph which uses three similar acceleration sensors, one per axis. The sensors are based on a linear geometry mechanical system, made mostly by common commercially used materials and typical FR4 printed circuit boards. The mechanical system uses a double force actuator to provide symmetrical axial feedback force to the seismic mass. The signal of the three sensors goes to a high resolution 32bits ADC digitizer with an open Linux operating system that makes it ideal for local and remote seismic monitoring applications. The mechanical system of the sensor has been extensively simulated for having its main oscillation mode frequency into its recording band and all other oscillation modes frequencies far outside the recording band. Extensive parametric analysis of the seismic mass supporting spring resulted that the optimal spring shape is the ellipsoidal. The feedback electronic circuit has been carefully designed towards very low electronic noise, which in addition with the mechanical system noise, will result in a total sensor self-noise level, lower the Accelerometer Low Noise Model (ALNM). The digitizer supports seedlink encoding real time data streaming and local storage through locally running open-source components ported on an ARM Linux board. The accelerograph tested and compared against a commercial accelerometer and provided a similar performance in terms of noise level and recording bandwidth. The new design offers a simpler sensor at a lower cost.

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    Geobit is presenting virtually at the AGU Fall Meeting 2021

    Geobit is presenting virtually at the AGU Fall Meeting 2021

    HOW WILL GEOBIT & ISTI BE INVOLVED IN AGU 2021.

    Updates on Booth status & Posters

    BOOTH STATUS

    • Update: Though GEObit & ISTI will not have a 2021 booth, we are excited to present our AGU posters online this year (details below).

    ABSTRACTS ONLINE

    • When: 13 – 17 December 2021
    • Where: Online

    Nikos Germenis, (Geobit), is presenting virtually at the AGU Fall Meeting being held 13 – 17 December 2021.

    S25E-0302 – A new Class-A triaxial Force-Balance Accelerograph Based on a Low-Cost Acceleration Sensor for Earthquake and Structural Monitoring Applications.

    This work presents an innovative class-A compact digital accelerograph suitable for earthquake and structural monitoring. The accelerograph exploits newly developed acceleration sensing elements [1], as well as software that integrates it to modern large scale IoT infrastructures [2].

    The sensor design is based on a linear displacement transducer with a double spring pendulum and double coil-magnet forcer. The seismic mass is made by FR3 PCB and is suspended from the frame using double ellipsoid shape leaf springs, while an additional weight has been attached to the seismic mass in order to improve sensitivity. Two nylon bobbins with 36m winded wire along with two N45 magnets consist the 38N/A double forcer. The frames of the sensing elements are made by aluminum and the electronics boards that implement the feedback loop are located on the top of each frame. Each sensing element produces 2.5V/g with a range of +/-4g. A high density electronics board houses the digitizer, the recorder and the communication section of the instrument. The digitizer uses three 32bit ADCs providing dynamic range over 140dB and GNSS or NTP timing. The recorder creates miniSEED files of raw and triggered data and stores them locally or transmits them in real time utilizing the SeedLink protocol.

    Trigger detection is based on open source components ported from the earthworm toolchain, coupled by MQTT-based signaling for trigger event distribution, following multiple centralized or distributed schemes. This flexible operation allows the user to select between low-latency but reduced network efficiency operation of raw data telemetry, local trigger detection and partial raw data transmission improving the network efficiency, local trigger detection and trigger signal only transmission, or centralized trigger detection and command reception to transmit partial or full raw data, supporting a wide range of systems for earthquake and structural monitoring or modern early warning applications.

    [1] AOGS poster, Design, Modeling and Performance Evaluation of a Class-a Triaxial Force-balance Accelerometer for earthquake monitoring, SE04-A001, AOGS21-Reg-2779

    [2] N Germenis, P Fountas, C Koulamas, Low Latency and Low Cost Smart Embedded Seismograph for Early Warning IoT Applications, 9th Mediterranean Conference on Embedded Computing 2020

    Check details: AGU Fall Meeting 2021.

    Geobit & ISIT online presentation schedule

    GEOBIT’S POSTER

    S25E-0302 A new Class-A triaxial Force-Balance Accelerograph Based on a Low-Cost Acceleration Sensor for Earthquake and Structural Monitoring Applications

    Authors: Nikos Germenis, Christos A Koulamas, GEObit Instruments PC (w/ Pantelis G Nikolakopoulos, University of Patras)

    • Date: Tue., 14 Dec.

    • Time: 17:00 – 19:00

    • Location: Online

    ISTI’S POSTERS

    • Date: Mon., 13 Dec.

    • Time: 14:03 – 14:06

    • Location: Online


    S35D-0245 Machine Learning Applied to Local and Regional Scale Seismic Network Operations

    Authors: Josh C Stachnik, Jeffrey M Leifer, Paul A Friberg; ISTI 

    • Date: Wed., 15 Dec.

    • Time: 17:00 – 19:00

    • Location: Online


    S45E-0345 Implementation of the AQMS/Jiggle System at the Puerto Rico Seismic Network: Process, Pitfalls, and Triumphs

    Authors: Paul A Friberg, Stefan Lisowski, Mike Hagerty, ISTI (w/ Elizabeth A Vanacore, Gisela Baez-Sanchez, Jose M Rivera Torres, Victor A Huerfano Moreno, Jose Cancel, Angel Feliciano, Peggy Gonzalez, Haniel Cordero, Jose F Martinez Colon, Jonathon Rosado Class, Josean Barbosa Toro, Puerto Rico Seismic Network of the University of Puerto Rico, Mayaguez; Lind S Gee, Hal Macbeth, Harley Benz, USGS; David Ketchum, STW Software, Inc.; Margarita M Solares, University of Oregon; Clara E Yoon, Stanford University)

    • Date: Thu., 16 Dec.

    • Time: 17:00 – 19:00

    • Location: Online