Gas sensor--sense of smell
Pressure sensitive, thermo-sensitive,
Classification of sensitive components:
Physical class, based on the physical effects of force, heat, light, electricity, magnetism and harmony.
Chemical class, based on the principle of chemical reaction.
Biological species, based on molecular recognition of enzymes, antibodies, and hormones.
Generally, according to its basic perception function can be divided into thermal sensors, photosensitive components, gas-sensitive components, sensitive components, magnetic sensors, humidity sensors, sound sensors, radiation sensitive components, color sensors and taste sensitive components, such as the top ten categories (also has been the sensitive components of 46 categories).