APPLYING A DATA ACQUISITION SYSTEM TO THE ANALYSIS OF BREATH ALCOHOL PROFILES

A breath alcohol profile is generated as a continuous function of time while a person is providing a breath sample. This paper describes a data acquisition system which samples breath alcohol concentrations at discrete intervals during exhalation. The data are stored on disk for later analysis. It is shown that the area under the profile curve for samples preceded by breath-holding is significantly larger than when breathing is normal prior to sample provision (p<0.001). The differences between the breath alcohol concentration measurements are also statistically significant (p<0.001) for the two different breathing patterns prior to breath exhalation. These results have physiological implications and suggest another means of evaluating breath alcohol profiles.(a)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00157368
• Corporate Authors:

  Forensic Science Society

  Clarke House, 18A Mount Parade
  Harrogate, North Yorkshire,   England 
• Authors:
  • GULLBERG, R G
• Publication Date: 1989-11-12

Language

• English

Media Info

• Pagination: p. 397-405
• Serial:
  • Journal of Forensic Science
  • Volume: 29
  • Issue Number: 6
  • Publisher: Forensic Science Society

Subject/Index Terms

• TRT Terms: Alcohol breath tests; Data collection
• ITRD Terms: 1542: Alcohol test; 8623: Data acquisition
• Subject Areas: Data and Information Technology;

Filing Info

• Accession Number: 00498461
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Sep 30 1990 12:00AM