Nasal airflow measurement using a compensated thermistor anemometer

Part 2 Computer signal processing and quantitative analysis
  • S. S. Besar
  • S. W. Kelly
  • M. C. G. Manley
Physiological Measurement

Abstract

A nasal anemometer is a useful tool for speech therapists in their assessment of treatment effectiveness. This work is the second part of a research scheme which describes how the system is compatible with the use of an IBM PC-AT microcomputer using a suitable analogue-to-digital convertor. This enables the system to perform signal processing and to display, draw, and calculate a numerical ‘figure of merit’ using Kendall's tau nonparametric correlation.

Keywords

Anemometer Cleft palate Computer signal processing Diagnostic instrumentation Nasality 

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References

  1. Besar, S. S., Kelly, S. W. andGreenhalgh, P. A. (1989) Nasal airflow using a compensated thermistor anemometer. Part 1 system description and qualitative analysis.Med. & Biol. Eng. & Comput.,27, 628–631.Google Scholar
  2. CODAS user's manual. (1986) Dataq Instrument Inc., Version: MetraByte Corp.Google Scholar
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  4. Ellis, R. E., Flack, F. C., Curle, H. J. andSelley, W. G. (1978) A system for the assessment of nasal airflow during speech.Br. J. Disorders of Comm.,13, 31–40.Google Scholar
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Copyright information

© IFMBE 1990

Authors and Affiliations

  • S. S. Besar
    • 1
  • S. W. Kelly
    • 1
  • M. C. G. Manley
    • 2
  1. 1.Medical Electronics Research Group, Electronic Engineering LaboratoriesUniversity of Kent at CanterburyCanterburyUK
  2. 2.East Kent Community Dental ServiceCanterbury Health CentreCanterburyUK

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