Discussion: “Hot-Wire Anemometer Calibration for Measurements at Very Low Velocity” (Dring, R. P., and Gebhart, B., 1969, ASME J. Heat Transfer, 91, pp. 241–244)

The Hot - wire Anemometer for Turbulence Measurements part III

Hot-film anemometer velocity measurements of arterial blood flow horses.

Blood velocity measurements were carried out using a constant-temperature hot-film anemometer system in both anesthetized and conscious horses. Catheter probes were used to measure velocity wave forms in conscious horses and L-shaped needle probes inserted by direct vessel puncture were used to measure the profiles in regions of the thoracic and abdominal aorta of anesthetized, open-chest horse...

Transient thermal response of a hot-wire anemometer

The ability of a thermal anemometry system to accurately measure unsteady fluid velocity depends on the electrical control system as well as the thermal properties of the sensor. The present work is a numerical study of the thermal transient response of a hot-wire. A conventional constant temperature anemometer with an ideal feedback amplifier as well as a pulse width modulated system were used...

Hot-Film Anemometer Velocity Measurements of Arterial Blood Flow in Horses

Blood velocity measurements were carried out using a constant-temperature hot-film anemometer system in both anesthetized and conscious horses. Catheter probes were used to measure velocity wave forms in conscious horses and L-shaped needle probes inserted by direct vessel puncture were used to measure the profiles in regions of the thoracic and abdominal aorta of anesthetized, open-chest horse...

Optimisation of Doped Microcrystalline Silicon Films Deposited at Very Low Temperatures by Hot-wire Cvd

In this paper we present new results on doped c-Si:H thin films deposited by Hot-Wire Chemical Vapour Deposition (HWCVD) in the very low temperature range (125-275 oC). The doped layers were obtained by the addition of diborane or phosphine in the gas phase during deposition. The incorporation of boron and phosphorus in the films and their influence on the crystalline fraction are studied by S...