AFORS autonomous fibre-optic rotational seismograph: Design and application

Leszek R. Jaroszewicz , Zbigniew Krajewski , Henryk Kowalski , Grzegorz Mazur , Paweł Zinówko , Jerzy Kowalski


We outline the research leading to development of the Autonomous Fibre-Optic Rotational Seismograph (AFORS) and describe the final version of the instrument. The instrument with linear changes of sensitivity keeps accuracy from 5.1 x 10-9to 5.5 x 10-8 rad/s in the detection bandpass 1.66-212.30 Hz; it is designed for a direct measurement of rotational components emitted during seismic events. The presented system is based on the optical part of the fibre optic gyro construction where a special autonomous signal processing unit (ASPU) optimizes its operation for the measurement of rotation motions instead of the angular changes. The application of a newly designed telemetric system based on the Internet allows for a remote system control, as shown in an example of the system’s operation in Książ (Poland) seismological observatory.
Author Leszek R. Jaroszewicz
Leszek R. Jaroszewicz,,
, Zbigniew Krajewski
Zbigniew Krajewski,,
, Henryk Kowalski II
Henryk Kowalski,,
- The Institute of Computer Science
, Grzegorz Mazur II
Grzegorz Mazur,,
- The Institute of Computer Science
, Paweł Zinówko
Paweł Zinówko,,
, Jerzy Kowalski
Jerzy Kowalski,,
Journal seriesActa Geophysica , ISSN 1895-6572
Issue year2011
Keywords in Polish-
Keywords in Englishfibre-optic device, seismograph, rotational seismic events.
Abstract in Polish-
projectDevelopment of new methods and algorithms in the following areas: computer graphics, artificial intelligence, and information systems; and distributed systems. Project leader: Rybiński Henryk, , Phone: +48 22 234 7731, start date 24-06-2010, planned end date 31-12-2010, end date 30-11-2011, II/2010/DS/1, Completed
WEiTI Działalność statutowa
Languageen angielski
kowalski.pdf (file archived - login or check accessibility on faculty) kowalski.pdf 3.77 MB
Score (nominal)20
Publication indicators WoS Impact Factor: 2011 = 0.617 (2) - 2011=0.667 (5)
Citation count*16 (2015-04-27)
Share Share

* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.