# A portable audible-range acoustical approach for determining headspace vapour-phase properties

https://mdr.nims.go.jp/datasets/99c9e7d3-6195-4608-be80-181504a99b21

## File

- [20230420_ManuscriptAftRev1_fin.docx](https://mdr.nims.go.jp/filesets/a796c372-9bde-40f8-b4a0-d475b784f7b7/download) ([Detail](https://mdr.nims.go.jp/filesets/a796c372-9bde-40f8-b4a0-d475b784f7b7.md))

## Id

99c9e7d3-6195-4608-be80-181504a99b21

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2023-11-30T22:06:18.143214Z

## Updated at

2025-08-15T23:30:18.659469Z

## Published at

2025-08-15T23:18:51.979255Z

## Doi

https://doi.org/10.48505/nims.4283

## First published url

https://doi.org/10.1016/j.sna.2023.114438

## Date published

2023-05-18

## Recorded date published

2023-8

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: A portable audible-range acoustical approach for determining headspace vapour-phase
    properties
  title_type: original
  lang: en

## Description

- description: Measuring vapour-phase properties including pressure, density, concentration
    and molecular weight is an important step towards integrating mobile olfactory
    devices into smart societies for monitoring chemical processes. However, there
    are few portable and low-cost devices for realising dynamic headspace vapour-phase
    measurements, which work for various molecules. Herein, the concept of utilising
    audible-range sound waves, in the form of an acoustic resonator, is introduced
    for extracting vapour-phase properties. As different headspace molecules enter
    the acoustic resonator, the weight and number of molecules change, and molecular
    vibrations are perturbed, manifesting in modified local acoustic waves due to
    changing vapour density and specific heat ratio. Physical waves enable the accurate
    determination of vapour properties for different molecules, agreeing well with
    reference values. A minimum vapour pressure down to n-decane of 0.2 kPa is detectable
    using an audible-range acoustical approach, either by flowing N2 to force molecules
    into the headspace; or using a simple cap-based design, which securely fastens
    onto a vial without any external flow. Low-cost speaker and microphone technologies
    are an innovative physical approach for determining vapour characteristics, whilst
    simultaneously demonstrating the inherently complex dynamic fluid space over time.
    Audible-range acoustical techniques can easily integrate into sensor networks
    and may yield new alternatives in mobile olfactory technology, due to its physical
    nature and irrelevance to chemical affinity, which may be useful for portable
    devices in various applications.
  description_type: abstract
  lang: eng

## Creator

- name: Kosuke Minami
  role: author
  orcid: https://orcid.org/0000-0003-4145-1118
  organization: NIMS
  department: RCMB

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: acoustic resonance
  schema: not_defined
- subject: audible-range
  schema: not_defined
- subject: sound waves
  schema: not_defined
- subject: mobile olfaction
  schema: not_defined
- subject: headspace vapor
  schema: not_defined
- subject: vapor pressure
  schema: not_defined
- subject: gas sensing
  schema: not_defined

## Rights

- description: "© 2023. This manuscript version is made available under the CC-BY-NC-ND
    4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/  "
  identifier: https://creativecommons.org/licenses/by-nc-nd/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2023-08-16
end_date: 2025-08-16

## Journal

- title: SENSORS AND ACTUATORS A-PHYSICAL
  issn: '09244247'
  volume: '358'
  start_page: 114438
  end_page: 114438

## Conference



## Related item



## Funding



## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: a796c372-9bde-40f8-b4a0-d475b784f7b7
  filename: 20230420_ManuscriptAftRev1_fin.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 7541159
  md5: a96f37bbb43c83bed5d44babfebe53aa

## Thumbnail

fileset_id: a796c372-9bde-40f8-b4a0-d475b784f7b7
filename: 20230420_ManuscriptAftRev1_fin.docx