空气质量测风仪（符合EPA空气质量监测标准要求 ） 型号05305

The Wind Monitor-AQ is a high resolution wind sensor designed specifically for air quality applications. It combines simple, corrosion-resistant construction with low threshold, fast response and exce

Range:
Wind speed: 0-50 m/s (112 mph)
Azimuth: 360° mechanical, 355° electrical (5° open)
Accuracy:
Wind speed: ±0.2 m/s (0.4 mph)
Wind direction: ±3 degrees
Threshold:*
Propeller: 0.4 m/s (0.9 mph)
Vane: 0.5 m/s (1.0 mph) at 10° displacement
Dynamic Response:*
Propeller distance constant (63% recovery): 2.1 m (6.9 ft)
Vane delay distance (50% recovery): 1.2 m (3.9 ft)
Damping ratio: 0.45
Damped natural wavelength: 4.9 m (16.1 ft)
Undamped natural wavelength: 4.4 m (14.4 ft)
Signal Output:
Wind speed: magnetically induced AC voltage, 3 pulses
per revolution. 1800 rpm (90 Hz) = 9.2 m/s (20.6 mph)
Azimuth: analog DC voltage from conductive plastic
potentiometer- resistance 10K Ω, linearity 0.25%,
life expectancy- 50 million revolutions
Power Requirement:
Potentiometer excitation: 15 VDC maximum
Dimensions:
Overall height: 38 cm (15.0 in)
Overall length: 65 cm (25.6 in)
Propeller: 20 cm (7.9 in) diameter
Mounting: 34 mm (1.34 in) diameter (standard 1 inch pipe)
Weight:
Sensor weight: 0.7kg (1.5 Ibs)
Shipping weight: 2.3 kg (5 Ibs)
*Nominal values- determined in accordance with ASTM
standard procedures Shielded bearings lubricated with
Type LO-1 light General Purpose Instrument Oil.