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Wind
speed Sensor
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:
3 Cup Anemometer.
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Sensing
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:
3 cup assembly mounted on friction free shaft and coupled to a
chopper.
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Starting
threshold
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:
0.3 meters/sec.
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Range
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:
0 to 65 meters/sec.
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Distance
constant
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:
2.5 Meters
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Output
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:
TTL pulses output proportional to wind speed Built in line driver
to drive long cable > 50 ohms loop resistance.
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Accuracy
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:
Better than 0.5 m/s up to 10 m/s + 2% FSD
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Diameter
of cup
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:
50 mm.
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Diameter
of cup assembly
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:
165 mm.
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Construction
of sensor body
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:
Brass housing and stainless steel shaft .
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Principle Of Operation
Anemometer is a fast response, low threshold opto electronic anemometer. When rotated by wind, a chopper on the anemometer shaft interrupts an infra red light source , generating pulses from a photo transistor. The signal is amplified and fed through a line driver. The frequency is proportional to wind speed. The anemometer is provided with a 3 pin connector for easy replacement and comes with 10 meters of shielded cable.
Ordering information
For operation at low temperature the sensor can be supplied with a built in heater The Anemometer can be supplied with a 20W 24 V DC built in heater for operation at low temperatures.
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