A Hot-Wire Liquid Water Device Having Fully Calculable Response Characteristics
1978; American Meteorological Society; Volume: 17; Issue: 12 Linguagem: Inglês
10.1175/1520-0450(1978)017 2.0.co;2
ISSN2163-534X
AutoresW. D. King, D. A. Parkin, R. J. Handsworth,
Tópico(s)Flow Measurement and Analysis
ResumoA liquid water sensor consisting of a thin copper wire wound on a hollow 1.5 mm diameter cylinder is described. Slave coils on either side of the master sensing coil reduce axial heat losses to an acceptable level, and allow for a simple relationship between power supplied to the wire and liquid water content. Wet wind-tunnel tests show that the system response to liquid water is easily calculable from a knowledge of the geometrical dimensions of the cylinder and the operating temperature of the hot wire. When operated at 100°C, the device has a sensitivity of 0.02 g m−3, a response time of better than 0.05 s and an accuracy of 5% at 1 g m−3.
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