2012年9月1日 星期六

The Importance Of The Humidity Sensor


A humidity sensor is a device that measures the comparative humidity in a certain area. While it is complicated, it is also important to our daily life. We will discuss how it works, and how our daily life is affected by it. Also, we will be describing the details of different prototypes.

Affiliated with humidity is water, and sensors are usually electronic, so we know that much. There are two types, an analog and digital sensor. For an mechanical one, three components are necessary. First, the exterior is made out plastic. Secondly, there is a small capacitor in the interior made of film-like glass or ceramics. The interior is insulated by a polymer. For a digital sensor, microchips are used instead of a capacitor and polymer.

Polymer is a topic in itself. It has a biological synthesis which is perfect for absorbing and emitting. This affects the analog, making it intellectually simpler. The amount of water vapor in the air, is then absorbed by the polymeric material. This polymer then emits water based on the relative water vapors. This changes the electric scale of the capacitor which shifts the analog.

A digital sensor contains various chips. Some are in essence a data Logger, and others are converters. There is also a tiny analog in between the various chips. The Data Logger chips, through an analog, digitalizes the humidity. This information is then transferred to a chip which displays the information.

There are various deficiencies to the analog form. An analog contains a large amount of polymer so when the polymer wears away the entire balance changes. Also, since there are many components a calibration process is necessary. To configure many units together through trial and error is strenuous. Another problem is the electricity balance in the capacitor. This leads to increased spending on electronics, but that also means less money.

There are many benefits to the digital style. The interior does not consist of polymer, but rather it is used as a protective encasement. This allows for efficiency without collaboration. In addition to the longevity of the collaboration it is easily replaceable. In the analog form, polymer not only has to be replaced, it also has to be collaborated.

In our surroundings, we have embedded in our technology a humidity sensor. Our air condition needs it to determine how much the temperature needs to be lowered. Modern Dryers use them to stop the machine at the proper time. Cars, our daily transportation, have one located in the exhaust manifold to control in-car temperature. Cutting edge jets and shuttles use them to control oxygen and temperature levels. Now with advance technology we have even learned how to determine which crops a block of soil can sustain.

In a world with many new concepts and ideas, possible insignificant ideas are tossed. However a humidity sensor is part of technology. They are necessary to maintain the infrastructure of our daily life. They will represent the future. Whether it is the latest tablet, or laptop, they are here and present.




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