Meteorological station

Section MPI of class 2nde11 of Lycée Charlie Chaplin

Décines

Meteorological station

Meteorological station’s alimentation

Battery

Solar panel

Acquisition card

solar regulator

Pressure pick-up PX 4115 AP

Pressure pick-up MPX 4115 AP Assembly of the calibration

Pressure pick-upMPX 4115 AP

Characteristic of calibration: P=277*Vs+160 (hPa)

The photodiode or the sensor of luminosity: A photodiode makes to measure the luminous intensity. Its

measurement is expressed in lux.

G= 6v

R=1kΩ

+

Sensor of light

-

Luminosity according to the tension:

The sensor of moisture

On the left we have the sensor which is welded onto the plate, then on the right is located the diagram of the assembly. We placed two resistances so that the tension which arrives at the Mermoz chart is of 3.3V maximum.

- Sensor HIH-4000-001

Curve of moisture according to the tension

Equation of the line: H = 38.8vs – 26

The psychrometric assembly used for the calibration of the sensor

thermometer

ventilator

beakerSensor ofmoisture

Heatballoon

The Wind vaneIt is used to give the direction of the wind which is

the source from which the wind comes.

TLV 2460

Potentiometer360°

Modulate direction of the wind

Study of the sensor:

Rotary potentiometer 360° without thrust

Courbe d’étalonnage du potentiomètre de la tension

en fonction des angles

The temperature

Assembly carried out

Double potentiometer Pt 1000 (temperature sensor)

TLV 2460

Simple potentiometer

The temperature sensor

the sensor Pt1000

The diagram of the assembly carried out of the sensor

The temperature sensor (PT 1000)

Adjustment of the 0V for -20°C

Adjustment of the 3.3V for + 40°C

Temperature curve according to the tensionEquation of line: T = 18.2 Vs -20

The anemometer and its contents

cupola

Magnet connected to the cupolas

of the anemometer

I.L.S (bladesswitch

flexible)

The anemometer and its converter frequency/tension

The anemometer

The converter frequency/tension

Interface between converter F/V and anemometer

Modulate of speedy measurement of the wind

Courbe d’étalonnage de la vitesse en fonction de la tension

f = 29,3 vs

Vit = 31 vs

Speed = Frequency

Thanks- Le lycée Charlie Chaplin and in particular Mr Trioulaire, Mr Gaudan,

Mr Cabeza, et Mme Beneton.- Le CCSTI du Rhône- Météo France- Le rectorat de Lyon- Planète Sciences du Rhône- La région Rhône-Alpes

- Our teacher MPI, Mr Jeanneaux

- Mr Guy Blanchet (climatologist)- M.Maillard Teacher of mécanics (Manufacturing of the weather vane )