High signal-to-noise ratio ultrasonic point detection method using a fused quartz rod as a pulse compression filter and a sensor

In this paper we propose a method to detect ultrasound with high signal-to-noise ratio ( S / N ) at a point on the surface of a material. To obtain high S / N , we applied an frequency-modulation (FM) pulse compression method as used in radar. We also used a fused quartz rod for point detection, at...

Full description

Saved in:
Bibliographic Details
Published in:JPN J APPL PHYS PART 1 REGUL PAP SHORT NOTE REV PAP 1997, Vol.36 (5B), p.3157-3159
Main Authors: YOSHIZAWA, M, TAGAWA, N, WATANABE, E, MORIYA, T, YAGI, S.-I
Format: Article
Language:English
Subjects:
Acoustic signal processing
Acoustical measurements and instrumentation
Acoustics
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Physics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper we propose a method to detect ultrasound with high signal-to-noise ratio ( S / N ) at a point on the surface of a material. To obtain high S / N , we applied an frequency-modulation (FM) pulse compression method as used in radar. We also used a fused quartz rod for point detection, at the same time using it for the pulse compression filter. The concept is demonstrated with an image reconstructed using a computer tomography algorithm.
ISSN:0021-4922
1347-4065
DOI:10.1143/jjap.36.3157