Low power multimode electrochemical gas sensor array system for wearable health and safety monitoring

Details

• Personal Author:
  Li H ; Mason AJ ; Mu X ; Yang Y
• Description:
  This paper presents an electrochemical gas sensor array system for health and safety monitoring. The system incorporates a custom room temperature ionic-liquid gas sensor array, a custom multimode electrochemical sensor readout board, and a commercial low power microcontroller board. Sensors for multiple gas targets were implemented in a miniaturized 2 x 2 array where each sensor consumes <3.2 uW and occupies a sensing area volume of 350 mm3. A novel resource-sharing circuit architecture tailored to the gas sensor array was utilized to significantly decrease power, cost, and size. The system supports multiple electrochemical measurement modes to provide orthogonal data to in-module sensor array algorithms for better prediction accuracy. The system achieves a resolution as high as 0.01 vol% in amperometry mode and 0.06 vol% in ac impedance mode for oxygen as an example target gas. [Description provided by NIOSH]
• Subjects:
  Air Pollution Environmental Exposure Occupational Health Risk Assessment Risk Factors Safety
• Keywords:
  Air Pollution Author Keywords: Electrochemical Gas Sensor Array Electrochemical Reactions Electrochemistry Exposure Levels Gases Gas Filters Low Power Measurement Equipment Pollutants Risk Factors Temperature Measurement Temperature Regulation

  More +
• ISSN:
  1530-437X
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Michigan ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  14
• Issue:
  10
• NIOSHTIC Number:
  nn:20048637
• Citation:
  IEEE Sens J 2014 Oct; 14(10):3391-3399
• Contact Point Address:
  Haitao Li, Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824
• Email:
  lihaitao@msu.edu
• Federal Fiscal Year:
  2015
• Performing Organization:
  Michigan State University
• Peer Reviewed:
  True
• Start Date:
  20100901
• Source Full Name:
  IEEE Sensors Journal
• End Date:
  20150831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:749673f0b3db7673d768f69557e0b88c2bba9e36dbe9b55c54237fff3a31fa6e8596a4e8bd8f59d5f5de2d02908c6b9fd21632cb5dea11ff937c0856678e94e6
• Download URL:
  https://stacks.cdc.gov/view/cdc/203345/cdc_203345_DS1.pdf
• File Type:
  [PDF - 3.05 MB ]