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en:aws [2014/08/18 18:04] – [Automatic weather station AWS01B] fluktuaciaen:aws [2014/08/18 18:59] – [Chemical sensors] fluktuacia
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 ====== Automatic weather station AWS01B ====== ====== Automatic weather station AWS01B ======
  
-An autonomous weather station with its own auto-diagnostics. The station is designed to work in remote areas together with other scientific instruments like robotic telescopes or[[cs:programming_tasks|other measurement stations]].+An autonomous weather station with its own auto-diagnostics. The station is designed to work in remote areas together with other scientific instruments like robotic telescopes or[[cs:programming_tasks| other measurement stations]].
        
 Very common problems of such applications are scarce energy resources and a need for short-term data transmission occurring after long time intervals. As a result, a possibility of immediate failure report via short-band data channel is essential in order to minimize dropouts in data acquisition.    Very common problems of such applications are scarce energy resources and a need for short-term data transmission occurring after long time intervals. As a result, a possibility of immediate failure report via short-band data channel is essential in order to minimize dropouts in data acquisition.   
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   * Freezing    * Freezing 
   * Limit to the mximum measured wind speed   * Limit to the mximum measured wind speed
-  * (([[http://www.digitalham.co.uk/weather/equipment/watson-w8681/wind-speed/|W8681 wind speed indicator disassembly and repair]]))+  * Seizing up (([[http://www.digitalham.co.uk/weather/equipment/watson-w8681/wind-speed/|W8681 wind speed indicator disassembly and repair]]))
  
-Solvable by using other technologies - e.g. sonic or ionization anemometer.+Solvable by using other anemometer designs - e.g. sonic or ionization anemometer.
  
 ==== Wind direction ==== ==== Wind direction ====
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 {{:cs:designs:meteo:wind_vector.jpg?200 |}}  {{:cs:designs:meteo:wind_vector.jpg?200 |}} 
  
-Weather vane with wind rose serves as the most basic detector. The position of the vane is read by a reed switch and it is recorded when changes.+Weather vane with wind rose serves as the most basic wind detector. The position of the vane is read by a reed switch and it is recorded when it changes.
  
 === Common difficulties === === Common difficulties ===
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-Can be solved by using more sophisticated anemometer that measures vector (ionization or sonic)+Can be solved by using more sophisticated anemometer designs that measure vectors (for example ionization or sonic).
  
 ==== Precipitation ==== ==== Precipitation ====
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 ==== Snow precipitation ==== ==== Snow precipitation ====
  
-According to demands of a weather station operator, there is a wide variety of parameters that can be measured.  +According to requirements of a weather station operator, a wide variety of snow parameters can be measured.  
  
 === Height === === Height ===
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 ==== Humidity ==== ==== Humidity ====
  
-Humidity sensors are positioned in radiation shield. +Humidity sensors are located in radiation shield. 
  
 [[cs:sht25v|SHT25V01A]] - sensor with I²C output and optional self-testing by heating of the measuring element.   [[cs:sht25v|SHT25V01A]] - sensor with I²C output and optional self-testing by heating of the measuring element.  
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 ==== Temperature ==== ==== Temperature ====
  
-Measuring the temperature of air, although being one of the most important function of the station, is in some cases performed incorrectly - e.g. by letting the Sun influence the value. A solution to this problem is so-called radiation shield, which prevents the effect of radiation on the sensor.+Measuring the temperature of the air, although being one of the most important function of the station, is in some cases performed incorrectly - e.g. by letting the Sun influence the value. A solution to this problem is so-called radiation shield, which prevents the effect of radiation on the sensor.
  
-Apart from commonly used [[cs:wire_sensors#mereni_teploty|DS18B20]]  sensor, a more modern option exists as well - [[cs:lts|LTS01A]]+Apart from commonly used [[cs:wire_sensors#mereni_teploty|DS18B20]] sensor, a more modern option exists as well - [[cs:lts|LTS01A]]
  
 ==== Pressure ==== ==== Pressure ====
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 === Luminous flux === === Luminous flux ===
  
-Use of photovoltaic cell, measuring output in W/m². +Use of a photovoltaic cell, measuring output in W/m². 
  
 === UV index === === UV index ===
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 ==== Chemical sensors ==== ==== Chemical sensors ====
  
-  * Gas detection CO, CO2, N2... H2S, CH4.. [[http://www.ti.com/lsds/ti/data-converters/sensor-afe-products.page?paramCriteria=no#p158=Serial%20I2C|Sensor AFE]]+  * Gas detection CO, CO2, N2... H2S, CH4.. [[http://www.ti.com/lsds/ti/data-converters/sensor-afe-products.page?paramCriteria=no#p158=Serial%20I2C|AFE Sensor]]
   * PH-meter   * PH-meter
  
en/aws.txt · Last modified: 2015/03/05 22:49 (external edit)