The appearance of capacitive sensor structure and its application in mechanical and electrical equipment

Capacitive sensor is a kind of can convert non-electric quantity being measured into changes of capacitance sensor. According to the different parameters of the change of the capacitance, capacitance sensor can be divided into the pole pitch change type, area change type, medium type three categories. 1) Despite the appearance of capacitive sensor structure capacitive sensor based on its cause changes in parameters of different capacitance only divided into three categories, but because of the different applications and USES its appearance structure varied, as shown in figure 1 is the shape of the part of capacitive sensor structure. Figure 1 part of capacitive sensor contour chart 2) Capacitive sensor can not only application of capacitive sensor used in displacement, vibration, mechanical quantities such as Angle, acceleration of precision measurement, and is gradually applied to pressure, differential pressure, liquid level, material surface, the component content and various kinds of medium temperature, density, humidity detection. As shown in figure 2 and figure 3 for capacitive sensor applications. Figure 2 capacitive fingerprint sensor application of figure 3 capacitive acceleration sensor applications