Analysis of System Parameters of Small Weather Station

The small weather station is mainly used as a detection instrument for measuring various parameters in the outdoor air. It connects multiple sensors and measures multiple parameters at the same time. Up to 13 parameters can be measured at the same time, including carbon dioxide concentration, wind speed, and photosynthetic efficiency. Radiation, dew point, light intensity and other parameters. With the accelerating process of industrialization, the agricultural environment has already shown worse and worse signs. How to quickly detect the environment and make appropriate response measures in time will greatly increase the efficiency of agriculture and push agriculture into modern agriculture or high-tech agriculture.
Small weather stations are also called small automatic weather stations because of their wide applicability and practicality. Today, small weather stations have been widely used in such fields as facility agriculture, forestry, horticulture, and animal husbandry to realize automatic ecological information on facility agriculture. Monitoring, automatic control and intelligent management of the environment.
The small weather station adopts automatic update parameters, the update frequency is once per second, is used in the environment of atmospheric pressure: (86-106) kPa, ambient temperature: (0-40)°C, relative humidity: ≤85%RH, Can extend its life. The main performance and technical indicators of small weather stations are shown in the table.

parameter
Measuring range
Accuracy
unit
System options
Temperature T
-40 ≤ T ≤ 123.8
±0.4
°C
â—Ž
Humidity RH
0≤RH ≤100
±3
%
â—Ž
Dew point DP temperature
-40≤T≤20
±0.9
°C
â—Ž
Light intensity
0~100000
±0.1
Lux
Effective radiation
0 to 2700
±1%
Îœmol/O/s
CO2 concentration
0~2000
±40+3%
Ppm
Wind speed
0~45
±0.1
m/s
â—Ž
wind direction
0°~ 360°
±1
degree
â—Ž
rainfall
0~200
±0.1
Mm/h
Soil moisture content
0~100
±3%
%(m3/m3)
Soil temperature
-55~125
±0.5
°C
Soil pH
0~14
±0.01
pH
Soil EC conductance
0~20
±1
mS/cm

Coordinate Measuring Machine (CMM) is a device that measures the geometry of physical objects by sensing discrete points on the surface of the object with a probe. Various types of probes are used in CMMs, including mechanical, optical, laser, and white light. Depending on the machine, the probe position may be manually controlled by an operator or it may be computer controlled. CMMs typically specify a probe's position in terms of its displacement from a reference position in a three-dimensional Cartesian coordinate system (i.e., with XYZ axes). In addition to moving the probe along the X, Y, and Z axes, many machines also allow the probe angle to be controlled to allow measurement of surfaces that would otherwise be unreachable.

Coordinate Measuring Machine

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