We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Laser Remote Sensing of Seismic Wave with Sub-Millimeter Scale Amplitude Based on Doppler Characteristics Extracted from Wavefront Sensor.
- Authors
Luo, Quan; Luo, Hongsheng; Wu, Guihan; Ji, Xiang; Su, Jinshan; Jiang, Wei
- Abstract
Laser remote sensing of earthquake waves has the potential to be used in many applications. This article shows a Doppler model for laser remote sensing of seismic waves based on a wavefront sensor. The longitudinal vibration wave is analyzed using remote sensing, guided by theoretical principles. To determine the magnitude of ground vibration, we employ the method of wavefront phase change analysis, utilizing a continuous laser emitting light with a wavelength of 635 nm to illuminate the ground target. The ground vibration amplitude within the range of 0.12–1.18 mm was examined, confirming the reasonableness of the Doppler model. Simultaneously, the experimental findings indicate that the system exhibits a certain enhancement in detection accuracy compared to the conventional laser remote sensing detection technique. This approach can detect vibration signals at a sub-millimeter scale level, with an accuracy of 1% to 2%. The approach can fulfill the requirements for detecting seismic waves with low frequencies.
- Subjects
SEISMIC waves; SUBMILLIMETER waves; REMOTE sensing; SOIL vibration; LONGITUDINAL waves; WAVEFRONT sensors; WAVEFRONTS (Optics)
- Publication
Photonics, 2024, Vol 11, Issue 3, p204
- ISSN
2304-6732
- Publication type
Article
- DOI
10.3390/photonics11030204