Skip to content
6CCVD Research

Resonant ultrasound spectrometer

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2023-01-23
JournalOSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)
AuthorsAlbert Migliori, William M Visscher, Z. Fisk
InstitutionsSanta Fe Institute, Los Alamos Medical Center

Abstract

Section titled ā€œAbstractā€

An ultrasound resonant spectrometer determines the resonant frequency spectrum of a rectangular parallelepiped sample of a high dissipation material over an expected resonant response frequency range. A sample holder structure grips corners of the sample between piezoelectric drive and receive transducers. Each transducer is mounted on a membrane for only weakly coupling the transducer to the holder structure and operatively contacts a material effective to remove system resonant responses at the transducer from the expected response range. i.e., either a material such as diamond to move the response frequencies above the range or a damping powder to preclude response within the range. A square-law detector amplifier receives the response signal and retransmits the signal on an isolated shield of connecting cabling to remove cabling capacitive effects. The amplifier also provides a substantially frequency independently voltage divider with the receive transducer. The spectrometer is extremely sensitive to enable low amplitude resonance to be detected for use in calculating the elastic constants of the high dissipation sample.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

Reads Similar to This

The Work of Dr Paul Farmer An efficient fluorescent single-particle position tracking system for long-term pulsed measurements of nitrogen-vacancy centers in diamond Efficient photon collection from single solid-state quantum emitters for quantum technology (Conference Presentation)