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Overview
The 05103, manufactured by R. M. Young, measures wind speed with a helicoid-shaped, four-blade propeller. Wind direction is sensed by the orientation of the fuselage-shaped sensor body, which is connected to an internal potentiometer.
Read MoreTechnical Description
The 05103 Wind Monitor is made out of rigid UV-stabilized thermoplastic with stainless steel and anodized aluminum fittings. The thermoplastic material resists corrosion from sea air environments and atmospheric pollutants. It uses stainless-steel precision-grade ball bearings for the propeller shaft and vertical shaft bearings.
The 05103 measures wind speed with a helicoid-shaped, four-blade propeller. Rotation of the propeller produces an ac sine wave that has a frequency directly proportional to wind speed. The ac signal is induced in a transducer coil by a six-pole magnet mounted on the propeller shaft. The coil resides on the non-rotating central portion of the main mounting assembly, eliminating the need for slip rings and brushes.
Wind direction is sensed by the orientation of the fuselage-shaped sensor body, which is connected to an internal potentiometer. The datalogger applies a known precision excitation voltage to the potentiometer element. The output is an analog voltage signal directly proportional to the azimuth angle.
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Specifications
| Operating Temperature Range | -50° to +50°C (assuming non-riming conditions) |
| Mounting Pipe Description |
|
| Main Housing Diameter | 5 cm (2.0 in.) |
| Propeller Diameter | 18 cm (7.1 in.) |
| Overall Height | 37 cm (14.6 in.) |
| Overall Length | 55 cm (21.7 in.) |
| Weight | 1.5 kg (3.2 lb) |
Wind Speed |
|
| Range | 0 to 100 m/s (0 to 224 mph) |
| Accuracy | ±0.3 m/s (0.6 mph) or 1% of reading |
| Starting Threshold | 1.0 m/s (2.2 mph) |
| Distance Constant | 2.7 m (8.9 ft) 63% recovery |
| Output |
ac voltage (three pulses per revolution) 90 Hz (1800 rpm) = 8.8 m/s (19.7 mph) |
Wind Direction |
|
| Mechanical Range | 0 to 360° |
| Electrical Range | 355° (5° open) |
| Accuracy | ±3° |
| Starting Threshold | 1.1 m/s (2.4 mph) at 10° displacement |
| Damping Ratio | 0.3 |
| Damped Natural Wavelength | 7.4 m (24.3 ft) |
| Undamped Natural Wavelength | 7.2 m (23.6 ft) |
| Output |
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| Voltage | Power switched excitation voltage supplied by data logger |
FAQs for
Number of FAQs related to 05103-LC: 1
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The information included on a calibration sheet differs with each sensor. For some sensors, the sheet contains coefficients necessary to program a data logger. For other sensors, the calibration sheet is a pass/fail report.
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