The effect of varying resistance ratio on the behaviour of constant-temperature hot-wire anemometers

A. J. Smits, A. E. Perry

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

The behaviour of the constant-temperature hot-wire anemometer as the resistance ratio becomes very low is examined in terms of the static and dynamic response. It is shown that a constant temperature anemometer may be used to measure temperature fluctuations but its usefulness is limited by the nonlinearity of the sensitivity. Systems which employ an amplifier with a frequency-dependent gain give rise to a step change in the sensitivity of the response at low frequencies. This step may be significant at all resistance ratios but generally increases as the resistance ratio decreases.

Original languageEnglish (US)
Article number020
Pages (from-to)451-456
Number of pages6
JournalJournal of Physics E: Scientific Instruments
Volume13
Issue number4
DOIs
StatePublished - Dec 1 1980

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'The effect of varying resistance ratio on the behaviour of constant-temperature hot-wire anemometers'. Together they form a unique fingerprint.

  • Cite this