Related Experiment Video
Updated: Jun 23, 2026
Measurement of Bioelectric Current with a Vibrating Probe
Published on: January 4, 2011
An ultrasonic digital lock-in probing technique for monitoring fast changes within an elastic body
1Physical Acoustics Branch, U.S. Naval Research Laboratory, Washington, DC 20375, USAjohn.y.yoritomo.civ@us.navy.mil.
Abstract:
A probing technique using ultrasonic waves and a digital lock-in detection scheme is developed to monitor changes within an elastic body. The scheme integrates products of the signal and reference rather than low pass filtering them. Two applications are illustrated: detecting acoustic emissions and monitoring slow dynamic nonlinear elasticity. The probe is capable of resolving the earliest times (<10-3 s) of the slow dynamic recovery and does not suffer distortion from the pump wave.
More Related Videos
14:42Remote Magnetic Actuation of Micrometric Probes for in situ 3D Mapping of Bacterial Biofilm Physical Properties
Published on: May 2, 2014
04:51Author Spotlight: Characterizing Environmental Biofilm Mechanics Using Optical Coherence Elastography and its Applications in Wastewater Treatment
Published on: March 1, 2024
