Title
: Do some research and explore more about the Humidity sensor.
Objective
: To study about the Humidity Sensor.
Content
/ Procedure : Search about Humidity
Sensor function and operation principle.
Results / Analysis :
Humidity Sensor
1) A humidity sensor also called a hygrometer,
measures and regularly reports the relative humidity in the air.
2) A
humidity sensor senses relative humidity. It measures both air temperature and
moisture.
3) Relative
humidity, expressed as a percent, is the ratio of actual moisture in the air to
the highest amount of moisture air at that temperature can hold.
4) The
warmer the air is, the more moisture it can hold, so relative humidity changes
with fluctuations in temperature.
5) The
most common type of humidity sensor uses what is called “capacitive
measurement.” This system relies on electrical capacitance, or the
ability of two nearby electrical conductors to create an electrical field
between them.
6) The
sensor itself is composed of two metal plates with a non-conductive polymer
film between them. The film collects moisture from the air, and the moisture
causes minute changes in the voltage between the two plates. The changes in
voltage are converted into digital readings showing the amount of moisture in
the air.
Conclusion:
From the research, the Humidity sensor can be used in the Smart Chicken Coop to
detect the moisture in the air. If the moisture is high, the light bulb will
turn ON to maintain a suitable temperature for the chicks.
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