Mechanical structures for smart-phone enabled sensing

The paper presents a new strategy for sensor design that is made possible by the usage of ubiquitous mobile devices for signal capture, digitization, and data processing. The approach taken is to design simple mechanical sensor elements such that they produce a sensor output that is easily acquired...

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Main Authors: Simon Lawes, Peter Kinnell
Format: Default Conference proceeding
Published: 2014
Subjects:
Online Access:https://hdl.handle.net/2134/17351
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id rr-article-9554594
record_format Figshare
spelling rr-article-95545942014-01-01T00:00:00Z Mechanical structures for smart-phone enabled sensing Simon Lawes (2613094) Peter Kinnell (1255284) Mechanical engineering not elsewhere classified Passive sensors Moire fringe Smart phones Compliant mechanisms Acoustic measurement Mechanical Engineering not elsewhere classified The paper presents a new strategy for sensor design that is made possible by the usage of ubiquitous mobile devices for signal capture, digitization, and data processing. The approach taken is to design simple mechanical sensor elements such that they produce a sensor output that is easily acquired by a mobile smart device such as a phone or tablet computer. To illustrate this concept, two mechanical displacement transducers have been designed and tested. These sensors make use of displacement amplification structures, Moiré pattern gratings and a double-ended-tuning-fork (DETF) resonant structure. The sensors produced either an acoustic or optical signal in response to an input load or displacement, which can then be acquired using the camera or microphone of a mobile device. The computing power and connectivity of mobile devices makes a wide range of processing, visualisation and storage techniques possible at low cost. Using this technique an optical displacement transducer with a range of 150 µm, and a resolution of <5 µm; and an acoustic displacement transducer with a range of 20 µm and a standard error of 0.14 µm, are demonstrated. 2014-01-01T00:00:00Z Text Conference contribution 2134/17351 https://figshare.com/articles/conference_contribution/Mechanical_structures_for_smart-phone_enabled_sensing/9554594 CC BY-NC-ND 4.0
institution Loughborough University
collection Figshare
topic Mechanical engineering not elsewhere classified
Passive sensors
Moire fringe
Smart phones
Compliant mechanisms
Acoustic measurement
Mechanical Engineering not elsewhere classified
spellingShingle Mechanical engineering not elsewhere classified
Passive sensors
Moire fringe
Smart phones
Compliant mechanisms
Acoustic measurement
Mechanical Engineering not elsewhere classified
Simon Lawes
Peter Kinnell
Mechanical structures for smart-phone enabled sensing
description The paper presents a new strategy for sensor design that is made possible by the usage of ubiquitous mobile devices for signal capture, digitization, and data processing. The approach taken is to design simple mechanical sensor elements such that they produce a sensor output that is easily acquired by a mobile smart device such as a phone or tablet computer. To illustrate this concept, two mechanical displacement transducers have been designed and tested. These sensors make use of displacement amplification structures, Moiré pattern gratings and a double-ended-tuning-fork (DETF) resonant structure. The sensors produced either an acoustic or optical signal in response to an input load or displacement, which can then be acquired using the camera or microphone of a mobile device. The computing power and connectivity of mobile devices makes a wide range of processing, visualisation and storage techniques possible at low cost. Using this technique an optical displacement transducer with a range of 150 µm, and a resolution of
format Default
Conference proceeding
author Simon Lawes
Peter Kinnell
author_facet Simon Lawes
Peter Kinnell
author_sort Simon Lawes (2613094)
title Mechanical structures for smart-phone enabled sensing
title_short Mechanical structures for smart-phone enabled sensing
title_full Mechanical structures for smart-phone enabled sensing
title_fullStr Mechanical structures for smart-phone enabled sensing
title_full_unstemmed Mechanical structures for smart-phone enabled sensing
title_sort mechanical structures for smart-phone enabled sensing
publishDate 2014
url https://hdl.handle.net/2134/17351
_version_ 1794751344258580480