Fundamental Limits of Ultrasonic Detection of Surface Displacements
Abstract
Program Officer: Joong Kim, POP: 24 months, PE: 0602131M 6.2MStanford has proposed to investigate the use of capacitive micro machi"ned ultrasonic transducers (CMUT) in a Doppler vibrometer configuration for measuring displacements of excited surfaces. The techniq"ue has numerous applications, including remote detection and mapping of subsurface objects. The initial phase of the proposed work i"ntends to compare and benchmark the performance of CMUT transducer arrays with optical interferometric techniques that are currently used for subsurface mapping. The CMUT arrays operate in unique manner to optical sensors which offer potential benefits due to minor pore penetration provided by acoustic waves. A more fundamental question to be investigated is the potential noise sources and overall contributions to minimum measureable vibration velocity as well as spatial resolution and field of view.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 01, 2017
- Source ID
- N000141712721
Entities
People
- Amin Arbabian
Organizations
- Office of Naval Research
- Stanford University
- United States Navy