Compact Precision Laser Inclinometer: Measurements of Signals and Noises
Seminars
Dzhelepov Laboratory of Nuclear Problems
DLNP Joint Laboratory Seminar
Date and Time: Wednesday, 22 December 2021, at 11:00 AM
Venue: online conference on Zoom
Information about seminar and link to join via Zoom
Seminar topic: “Compact Precision Laser Inclinometer: Measurements of Signals and Noises”
Speaker: M. V. Lyablin
Abstract:
The results of the development of a Compact Precision Laser Inclinometer are presented. The new position-sensitive photometric method of Dividing Plates allowed designing the device with overall dimensions of 20 × 20 × 20 cm and 10 kg in weight.
Experimental data were obtained detecting angular oscillations of the Earth’s surface on the JINR site. The maximum sensitivity in the frequency range of 4·10-3-10 Hz was 6·10-11 rad/Hz1/2.
MPLI can be used in a modern physics experiment: to stabilize large-scale physical facilities of the Virgo Interference Gravitational Antenna and the Large Hadron Collider from microseismic angular oscillations of the Earth’s surface, as well as to predict earthquakes.