The displacement sensor has the advantages of digitization, high accuracy, strong anti-interference ability, no human reading error, easy installation, and reliable use. Displacement sensors can be divided into inductive displacement sensors, capacitive displacement sensors, photoelectric displacement sensors, displacement sensors, ultrasonic displacement sensors, Hall displacement sensors, etc.
Capacitive displacement sensor: inductive displacement sensor is a kind of linear device belonging to metal induction, after the power is turned on, an alternating magnetic field will be generated on the sensing surface of the switch, when the metal object is close to this sensing surface, eddy current is generated in the metal and absorbs the energy of the oscillator, so that the output amplitude of the oscillator is linearly attenuated, and then according to the change of the attenuation amount to complete the purpose of non-contact detection of the object.
Linear Displacement Sensor: Its function is to convert the linear mechanical displacement into an electrical signal. In order to achieve this, the variable resistance slide is usually fixed on the fixed part of the sensor, and the different resistance values are measured by the displacement of the slide blade on the slide rail.
Angular Displacement Sensor: It controls your wheels to indirectly detect obstacles. The principle is very simple: if the motor angle sensor is running and the gears are not turning, your machine is blocked by obstacles.
Hall displacement sensor: its measurement principle is to keep the excitation current of the Hall element unchanged and make it move in a gradient uniform magnetic field, then the displacement is proportional to the output Hall potential.
Photoelectric displacement sensor: It measures the displacement or geometry of an object according to how much it blocks the luminous flux. It is characterized by non-contact measurement and continuous measurement.
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