Dynamics of bridgeless constant temperature anemometers

• Autorzy: Kiełbasa, J.
• Języki publikacji: EN

Abstrakty

EN

The paper presents a new technique for measuring the time constant of the bridgeless CTA in which the overheating ratio is set digitally. The results of studies of anemometer dynamic behaviour are discussed. The overheating ratio is modulated sinusoidally with respect to its mean value. The tests were run in steady- flow conditions. Hot wire sensors are made of tungsten wire 8 micrometers in diameter, 1.5-2 mm long. Tests were run in the air, at flow velocities of up to 1 m/s. frequency ranged from 10-500 Hz. The mean value of the overheating ratio was 1.8, while the amplitude of modulation was 10%.

Słowa kluczowe

PL

anemometr

EN

hot wire anemometer; thermal anemometer; bridgeless anemometer circuit; time constant of an anemometer

• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2001
• Tom: Vol. 6, no 2
• Strony: 499-511
• Opis fizyczny: Bibliogr. 8 poz., rys., wykr.

Twórcy

autor

Kiełbasa, J.

• Department of Power Installations University of Mining and Metallurgy al. Mickiewicza 30, 30-059 Kraków, POLAND