Bộ đo gió Campbell Scientific 03002-L

Thương hiệu: Campbell Scientific | Tình trạng: Còn hàng
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Bộ đo gió Campbell Scientific 03002-L

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Bộ đo gió Campbell Scientific 03002-L

Overview

The 03002, manufactured by R. M. Young, measures wind speed and direction with a 3-cup anemometer and a wind vane mounted on a small crossarm. It interfaces directly with Campbell Scientific dataloggers; no signal conditioning is required.

Benefits and Features

Compatible with most Campbell Scientific dataloggers

Designed for continuous, long term, unattended operation in adverse conditions

Ideal for wind profile studies

Compatible with the LLAC4 4-channel Low Level AC Conversion Module, which increases the number of anemometers one datalogger can measure

Campbell Scientific version uses shielded bearings, which lowers the anemometer's starting threshold

Compatible with the CWS900-series interfaces, allowing it to be used in a wireless sensor network

Detailed Description

The 03002 uses a cup wheel assembly to measure wind speed. Rotation of the cup wheel produces an ac sine wave that is directly proportional to wind speed. The frequency of the ac signal is measured by a datalogger pulse count channel, then converted to engineering units (mph, m/s, knots). Campbell Scientific’s version uses shielded bearings, which lowers the anemometer’s threshold.

Wind direction is sensed by a potentiometer. With the precision excitation voltage from the datalogger applied to the potentiometer element, the output signal is an analog voltage that is directly proportional to the azimuth angle of the wind direction.

Specifications

Operating Temperature Range -50° to +50°C (assuming non-riming conditions)
Height 32 cm (12.6 in.)
Crossarm Length 40 cm (15.7 in.) between instruments (center-to-center)
Mounting Diameter 34 mm (1.34 in.); mounts on standard 1-in. IPS pipe

Wind Speed (Anemometer)

Range 0 to 50 m/s (0 to 112 mph)
Gust Survival 60 m/s (134 mph)
Sensor 12-cm diameter cup wheel assembly, 40-mm diameter hemispherical cups
Accuracy ±0.5 m/s (1.1 mph)
Turning Factor 75 cm (2.5 ft )
Distance Constant 2.3 m (7.5 ft) 63% recovery
Threshold 0.5 m/s (1.1 mph)
Transducer Stationary coil (1300 ohm nominal resistance)
Transducer Output AC sine-wave signal induced by rotating magnet on cup wheel shaft 100 mV peak-to-peak at 60 rpm (6 V peak-to-peak at 3600 rpm)
Output Frequency 1 cycle per cup wheel revolution (0.75 m/s per Hz)
Cup Wheel Diameter 12 cm (4.7 in.)
Weight 113 g (4 oz)

Wind Direction (Vane)

Mechanical Range 360°
Electrical Range 352° (8° open)
Sensor Balanced vane; 16 cm turning radius
Accuracy ±5°
Damping Ratio 0.2
Delay Distance 0.5 m (1.6 ft) 50% recovery
Threshold
  • 0.8 m/s (1.8 mph) with 10° displacement
  • 1.8 m/s (4 mph) with 5° displacement
Transducer
  • Precision conductive plastic potentiometer (10 kohm resistance)
  • 1.0% linearity
  • Life expectancy is 50 million revolutions.
  • Rated 1 W at 40°C, 0 W at 125°C.
Transducer Excitation Requires regulated dc voltage. (15 Vdc maximum)
Transducer Output Analog dc voltage proportional to wind direction angle with regulated excitation voltage supplied by the datalogger
Vane Length 22 cm (8.7 in.)
Weight 170 g (6 oz)

Download

Brochures

03002 Wind Sentry Set and 03101 Wind Sentry Anemometer

Manuals

03002, 03101, and 03301 R. M. Young Wind Sentry Sensors

Manufacturer's 03002-L Manual

 

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