论文信息 - Fluid temperature compensation in a hot wire anemometer using a single sensor

Fluid temperature compensation in a hot wire anemometer using a single sensor

In conventional constant temperature hot-wire anemometer, the compensation for the fluid temperature is done by using two sensors. In this paper, the analysis of a anemometer using only one sensor, operating alternately at two different temperatures is presented. The effect of the amplifier input offset voltage is taken into account, and its influence on the measurement of fluid velocity is quantified. Preliminary experimental results are also presented.

R.C.S. Freire | R.P.C. Ferreira | G.S. Deep | J.S. Rocha Neto | A. Oliveira

[1] G. S. Deep,et al. Dynamic response of a feedback thermoresistive electrical substitution pyranometer , 1998 .

[2] Peter Freymuth,et al. On Feedback Control Theory for Constant Temperature Hot Wire Anemometers , 1967 .

[3] Alexander J. Smits,et al. The response to temperature fluctuations of a constant-current hot-wire anemometer , 1978 .

[4] P. I. Savostenko,et al. Hot-wire anemometer invariant to temperature of the medium , 1988 .

[5] G. S. Deep,et al. Compensation of the fluid temperature variation in a hot-wire anemometer , 1997, IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings.

[6] Murray S. Korman,et al. Fundamentals of hot wire anemometry , 1986 .

[7] K. Watanabe,et al. A digital anemometer , 1993, 1993 IEEE Instrumentation and Measurement Technology Conference.

[8] D. A. Shah,et al. A constant temperature hot-wire anemometer , 1987 .

[9] Alexander J. Smits,et al. A note on hot-wire anemometer measurements of turbulence in the presence of temperature fluctuations , 1981 .

[10] Graham L. Morrison,et al. A study of the constant-temperature hot-wire anemometer , 1971, Journal of Fluid Mechanics.

[11] S. Takagi,et al. A hot-wire anemometer compensated for ambient temperature variations , 1986 .