Campbell Scientific - Model 03101-L - Wind Sentry Anemometer
From Wind Speed and Wind Direction Sensors
The 03101 is the three-cup anemometer included with our Wind Sentry Sets. You can purchase it separately if your application requires only wind speed measurements. The 03101 connects directly to a Campbell Scientific data logger, which measures the anemometer's pulse signal and converts the signal to engineering units (mph, m/s, knots).
Detailed Description
The 03101 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 data logger 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.
Benefits and Features
- Ideal for applications that do not require wind direction measurements
- Compatible with most Campbell Scientific data loggers
- Designed for continuous, long-term, unattended operation in adverse conditions
- Small size, simplicity, and rugged construction provide a quality instrument for a modest price
- Ideal for wind profile studies
- Compatible with the LLAC4 4-channel Low-Level AC-Conversion Module, which increases the number of anemometers one data logger can measure
- Campbell Scientific version uses shielded bearings, which lowers the anemometer's starting threshold
Specifications
- Sensor: 3-cup anemometer
- Measurement Description: Wind speed
- Range: 0 to 50 m/s (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
- Starting Threshold: 0.5 m/s (1.1 mph)
- Transducer: Stationary coil (1300 ohm nominal resistance)
- Output Frequency: 1 cycle per cup wheel revolution (0.75 m/s per Hz)
- 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)
- Operating Temperature Range: -50° to +50°C (assumes non-riming conditions)
- Cup Wheel Diameter: 12 cm (4.7 in.)
- Height: 23.4 cm (9.2 in.)
- Weight: 113 g (4 oz)
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