Distributed force sensor based on acoustic characteristics of elastic tube

The measurement of distributed force is highly demanded in various fields such as robotics. A flexible and nonmetal sensor configuration is often required in these applications. In this report, a distributed sensing method using an elastic tube, a small loud speaker and a microphone has been propose...

Full description

Saved in:
Bibliographic Details
Published in:Acoustical Science and Technology 2017/03/01, Vol.38(2), pp.80-86
Main Authors: Nakamura, Kentaro, Odajima, Shota, Tabaru, Marie
Format: Article
Language:English
Subjects:
Acoustic characteristics
Acoustic measurement
Acoustic noise
Acoustic properties
Distributed sensor
Distributed sensor systems
Elastic deformation
Elastic tube
Force distribution
Force sensor
Fourier transforms
Sensors
Stress concentration
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:The measurement of distributed force is highly demanded in various fields such as robotics. A flexible and nonmetal sensor configuration is often required in these applications. In this report, a distributed sensing method using an elastic tube, a small loud speaker and a microphone has been proposed, where the position of deformation along the tube can be determined from the acoustic characteristics of the tube. The basic properties of the distributed sensor were studied for a 1.2-m-long resin elastic tube of 10 mm inner diameter. The distribution of deformation was estimated from the power spectrum measured at one end of the tube with white-noise excitation. The position of deformation was successfully detected from the Fourier transform of the power spectrum. It was also proved that two separate deformed parts were able to be discriminated.
ISSN:1346-3969
1347-5177
DOI:10.1250/ast.38.80