RAWS-F Remote Automated Weather Station for Fire Weather
4.5 Wind Speed and Direction
.5 Wind Speed and Direction
4.5.1 Wind Sensor
4.5.1 Wind Sensor
4.5.1.1 General Description
4.5.1.1 General Description
The Met One Wind Sensor (pn 034B-QD)
shown in FIGURE 4-4 is an
integrated cup anemometer and wind vane. The anemometer consists of three
cups that sense the wind speed. These cups rotate on a vertical shaft that
magnetically activates a sealed reed switch. The reed switch opens and closes
at a rate proportional to wind speed. The wind direction is sensed by a vane.
The vane drives a 10 k
Ω
potentiometer. The wind speed sensor outputs a
pulse. The wind direction sensor outputs a voltage.
The Met One Wind Sensor (pn 034B-QD)
shown in FIGURE 4-4 is an
integrated cup anemometer and wind vane. The anemometer consists of three
cups that sense the wind speed. These cups rotate on a vertical shaft that
magnetically activates a sealed reed switch. The reed switch opens and closes
at a rate proportional to wind speed. The wind direction is sensed by a vane.
The vane drives a 10 k
Ω
potentiometer. The wind speed sensor outputs a
pulse. The wind direction sensor outputs a voltage.
FIGURE 4-4. Wind sensor
Set screw holes must be
covered with labels
13
Содержание RAWS-F
Страница 2: ......
Страница 40: ...RAWS F Remote Automated Weather Station for Fire Weather 32 ...
Страница 44: ...Appendix A Assemble the RAWS F Station Wind sensor alignment pin Attach cable Secure wind set A 4 ...
Страница 45: ...Appendix A Assemble the RAWS F Station Enclosure hanger points A 5 ...
Страница 46: ...Appendix A Assemble the RAWS F Station Solar panel should face the equator A 6 ...
Страница 47: ...Appendix A Assemble the RAWS F Station A 7 ...
Страница 48: ...Appendix A Assemble the RAWS F Station Optional transport cases A 8 ...
Страница 49: ...Appendix A Assemble the RAWS F Station Wind sensor alignment tool A 9 ...
Страница 50: ...Appendix A Assemble the RAWS F Station A 10 ...
Страница 51: ...Appendix B Transport Cases Optional Hard transport case optional B 1 ...
Страница 53: ...Appendix B Transport Cases Optional Solar panel Wind sensor Hard transport case base layer 2 of 2 B 3 ...
Страница 55: ...Appendix B Transport Cases Optional Canvas transport case optional B 5 ...
Страница 57: ......
