Often the function of the sensor and the human five senses comparable to:
Light sensors - visual acoustic sensors - Hearing
Gas sensors - smell chemical sensors - Taste
Sensitive, temperature sensitive, fluid sensors - tactile
Category sensitive components:
① physics, physical stress, heat, light, electricity, magnetism and sound and so on.
② chemical class, based on the chemical reaction principle.
③ biology, based on enzymes, antibodies, and hormones such as molecular recognition.
According to its basic function is usually divided into thermal sensing element, the photosensitive element, gas sensors, force-sensitive components, magnetic components, humidity sensors, acoustic sensors, radiation-sensitive element, color, and flavor-sensitive components, such as the ten-sensitive element class (there are people who will be sensitive component of 46 classes).