Results 161 to 170 of about 13,778 (223)

The vertical temperature structure and scaling relations for heat of the near surface stable boundary layer

Lapo K, Pfister L, Mosso S, Lehner M, Stiperski I.   +4 more
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Hot-wire anemometer for spirography

Medical & Biological Engineering & Computing, 1998
The use of a constant temperature hot-wire anemometer flow sensor for spirography is reported. The construction, operating principles and calibration procedure of the apparatus are described, and temperature compensation method is discussed. Frequency response is studied.
P, Plakk, P, Liik, P H, Kingisepp
openaire   +2 more sources

A micro silicon hot-wire anemometer

1995 IEEE TENCON. IEEE Region 10 International Conference on Microelectronics and VLSI. 'Asia-Pacific Microelectronics 2000'. Proceedings, 2002
A new micromachined hot-wire anemometer has been developed. Extensive tests of the anemometer's dependence on ambient temperature, over-heat ratio, and sensor length have been finalized. Due to its extremely small size, micromachined hot-wire has better sensitivity, temporal and spatial resolutions than the conventional hot-wire.
Mischler, Martin, Tseng, Fan-Gang, Ulmanella, Umberto, Ho, Chih-Ming, Jiang, Fukang, Tai, Yu-Chong   +5 more
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A constant temperature hot-wire anemometer

Journal of Scientific Instruments, 1967
A compact, inexpensive, constant temperature hot-wire anemometer circuit using solid state operational amplifiers is described. A theoretical expression for frequency response and an experimental check are given. Theoretical and experimental response data for an existing unit are shown.
J C Wyngaard, J L Lumley
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Calibration Unit for Hot-Wire Anemometers

Measurement Techniques, 2004
The proposed calibrating unit for hot-wire anemometers can reproduce the unit of airflow velocity to within ±0.65% in the range 0.026–4.65 m/sec. Ways of improving the metrological characteristics are considered.
I. D. Pupyshev, A. A. Chepushtanov, Yu. V. Beketov   +2 more
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Bidirectional hot-wire anemometer

Review of Scientific Instruments, 1982
A simple hot-wire anemometer based device has been designed and developed which is capable of measuring flow reversals. The instrument has a useful range of 0 to ±150 cm/s.
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Practical hot-wire anemometer excitation modes

SPIE Proceedings, 2004
The operation of a thin film hot wire directional anemometer is demonstrated using three modes of operation; constant voltage, constant current, constant resistance, and the heating response and characteristics for the different excitation modes observed. Evaluation is primarily by experimental approach.
Richard J. Adamec, David V. Thiel, Philip Tanner   +2 more
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A directionally sensitive hot- wire anemometer

Experiments in Fluids, 1997
A new directionally sensitive velocity measurement system based upon a single oscillating hot-wire probe has been developed. The vibration of the hot-wire was effected by a piezoelectric oscillator that could be driven at different amplitudes and frequencies.
A. M. Moulin, M. Gaster, C. N. Woodburn, J. R. Barnes, M. E. Welland   +4 more
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The Rotated Hot Wire Anemometer

Review of Scientific Instruments, 1971
The novel method of measuring turbulence intensities and shear stress by a rotating single hot wire anemometer presented by Fujita and Kovasznay [Rev. Sci. Instrum. 39, 1351 (1968)] was used to make turbulence measurements in the wake of a thin flat plate.
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