Sensors are used in different fields and then play an important role in different fields. For example, there are many types of medical sensors , and there is no uniform classification method. It can be classified according to the working principle of the sensor, the type of the measurement, and the function of the sensor corresponding to the human sense. The medical sensors are roughly classified below.
First, according to the working principle of the sensor, there are three types:
Chemical sensor
Using chemical reaction principles to convert chemical components and concentrations into electrical signals
Chemical sensors are sensors made using chemical and chemical effects. Such sensors generally convert non-electrical quantities of certain chemical components, contents, concentrations, etc. into electrical quantities corresponding thereto by ion-selective sensitive membranes. For example: different types of ion sensitive electrodes, ion sensitive field effect transistors, humidity sensors, etc.
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Chemical sensor
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