# Sensing signal augmentation by flow rate modulation of carrier gas for accurate differentiation of complex odours

https://mdr.nims.go.jp/datasets/dc500b88-ce38-4dfa-8ab2-5294fc51fa7c

## File

- [Sensing signal augmentation by flow rate modulation of carrier gas for accurate differentiation of complex odours.pdf](https://mdr.nims.go.jp/filesets/a5210675-b7b2-4996-a0a8-2bb20fe87b6c/download) ([Detail](https://mdr.nims.go.jp/filesets/a5210675-b7b2-4996-a0a8-2bb20fe87b6c.md))

## Id

dc500b88-ce38-4dfa-8ab2-5294fc51fa7c

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-12-10T05:35:53.948719Z

## Updated at

2024-12-10T07:56:48.192907Z

## Published at

2024-12-10T07:56:48.266231Z

## Doi



## First published url

https://doi.org/10.1080/14686996.2024.2408212

## Date published

2024-12-31

## Recorded date published

2024-12-31

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Sensing signal augmentation by flow rate modulation of carrier gas for accurate
    differentiation of complex odours
  title_type: original
  lang: en

## Description

- description: For olfactory sensors, clear differentiation of complex odour samples
    requires diverse information. To obtain such information, hardware modifications,
    such as introducing additional channels with different physical/chemical properties,
    are usually needed. In this study, we present a new approach to augmenting the
    sensing signals of an olfactory sensor by modulating the flow rate of the carrier
    gas. The headspace vapour of complex odours is measured using a sensing system
    of nanomechanical sensor (Membrane-type Surface stress Sensor, MSS). The resulting
    data set is quantitatively evaluated using the Davies-Bouldin index (DBI) of principal
    component analysis (PCA). The increasing number of sensing signals obtained at
    different gas flow rates leads to a decrease in the DBI, achieving better cluster
    separation between different odours. Such gas flow effects can be attributed to
    several factors, including the sample evaporation and the equilibrium of the gas-liquid
    and gas-solid interfaces. Proton-transfer-reaction time-of-flight mass spectrometry
    (PTR-TOF-MS) experiments reveal that the compositions of odour samples vary with
    the different gas flow rates. It is demonstrated that a simple technique for modulating
    gas flow rates can significantly improve the differentiation performance of complex
    odours, providing an additional degree of freedom in olfactory sensing.
  description_type: abstract
  lang: und

## Creator

- name: Meng-Qun Feng
  role: author
  orcid: https://orcid.org/0000-0002-3185-7555
  organization: National Institute for Materials Science
- name: Tanju Yildirim
  role: author
  orcid: https://orcid.org/0000-0002-0269-4718
  organization: National Institute for Materials Science
- name: Kosuke Minami
  role: author
  orcid: https://orcid.org/0000-0003-4145-1118
  organization: National Institute for Materials Science
- name: Kota Shiba
  role: author
  orcid: https://orcid.org/0000-0001-7775-0318
  organization: National Institute for Materials Science
- name: Genki Yoshikawa
  role: author
  orcid: https://orcid.org/0000-0002-9136-8964
  organization: National Institute for Materials Science

## Contact agent



## Publisher

organization: Informa UK Limited

## Managing organization



## Keyword

- subject: olfactory sensors
  schema: not_defined
- subject: gas sensing
  schema: not_defined
- subject: e-nose
  schema: not_defined
- subject: smell
  schema: not_defined
- subject: chemical sensor array
  schema: not_defined
- subject: signal augmentation
  schema: not_defined
- subject: differentiation
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Science and Technology of Advanced Materials
  issn: '14686996'
  volume: '25'
  issue: '1'
  article_number: '2408212'

## Conference



## Related item



## Funding

- identifier: 20K20554
  funder_name: Grant-in-Aid for Challenging Research

## 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: a5210675-b7b2-4996-a0a8-2bb20fe87b6c
  filename: Sensing signal augmentation by flow rate modulation of carrier gas for
    accurate differentiation of complex odours.pdf
  content_type: application/pdf
  size: 5384824
  md5: 3afd11c3319aa39d29d6db144d31aaa8

## Thumbnail

fileset_id: a5210675-b7b2-4996-a0a8-2bb20fe87b6c
filename: Sensing signal augmentation by flow rate modulation of carrier gas for accurate
  differentiation of complex odours.pdf