Joint capacitive sensing and frequency selection for fast medical tests

Yun Sheng Chan, Kuan Yu Lung, Yun-Ming Wang, Chen-Yi Lee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents a new approach with frequency selection for fast medical tests. Many medical tests need high speed sensor because of its short reaction time. High frequency biosensor with high sensitivity plays a vital role in fast medical tests. Each medical test has its own reaction time. How to select proper frequency for specific medical test is an important issue. In this paper, one frequency-based capacitive sensor is proposed to prove this new approach with salt water. According to the experimental results, the limit of detection (LOD) can be improved if proper working frequency is selected. The 0.1%wt salt water in 20ul can be detected on proposed system and coefficient of variation (CV) is only 0.19% at 40MHz.

Original languageEnglish
Title of host publication2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728103976
DOIs
StatePublished - May 2019
Event2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Sapporo, Japan
Duration: 26 May 201929 May 2019

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
Volume2019-May
ISSN (Print)0271-4310

Conference

Conference2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019
Country/TerritoryJapan
CitySapporo
Period26/05/1929/05/19

Keywords

  • Biosensor
  • Fast medical tests
  • Frequency selection

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