Feasibility considerations for a long-range passive vibrometer

Alan Marchant; Chad Fish; Jie Yao; Phillip M. Cunio; Wellesley Pereira

doi:10.1117/12.2064419

12 September 2014 Feasibility considerations for a long-range passive vibrometer

Alan Marchant, Chad Fish, Jie Yao, Phillip M. Cunio, Wellesley Pereira

Proceedings Volume 9219, Infrared Remote Sensing and Instrumentation XXII; 92190F (2014) https://doi.org/10.1117/12.2064419
Event: SPIE Optical Engineering + Applications, 2014, San Diego, California, United States

Abstract

High-framerate imaging enables the long-range characterization of the vibration modes and amplitudes of a passively illuminated structure. The vibration signature arises from modulation of the bidirectional reflection distribution function (BRDF) as the surface normal oscillates with respect to a fixed, directional source. In this paper we consider the instrument design characteristics and environmental factors that limit passive vibrometer performance including BRDF angle sensitivity, receiver spatial resolution, interference from atmospheric scintillation, and intrinsic detector performance. We here identify a sensor architecture that is capable of characterizing surface vibration at amplitudes below 1 mrad root mean square (RMS) and discuss detector technology that can further improve long-range vibrometer sensitivity.

Citation Download Citation

Alan Marchant, Chad Fish, Jie Yao, Phillip M. Cunio, and Wellesley Pereira "Feasibility considerations for a long-range passive vibrometer", Proc. SPIE 9219, Infrared Remote Sensing and Instrumentation XXII, 92190F (12 September 2014); https://doi.org/10.1117/12.2064419

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available