Features Of Proximity Sensor

- Jul 11, 2020-

Proximity sensors are mainly used to detect the displacement of objects, and are widely used in aviation, aerospace technology and industrial production. In daily life, such as hotels, restaurants, garages, automatic doors, automatic hot air blowers have applications. In terms of security and anti-theft, such important places as data files, accounting, finance, museums, and vaults are usually equipped with anti-theft devices consisting of various proximity switches. In measurement technology, the measurement of length and position; in control technology, such as the measurement and control of displacement, velocity, and acceleration, there are also a large number of proximity switches for users.

Specialty

① Since the detection can be performed in a non-contact manner, the detection object will not be worn or damaged.

② Due to the non-contact output method, the life is prolonged (except the magnetic type). The semiconductor output is adopted, which has no effect on the life of the contact.

③ Different from the light detection method, it is suitable for use in water and oil environments, and it is hardly affected by the stains of the detection object, oil, and water. In addition, it also includes Teflon shell type and good chemical resistance products

④ Compared with contact switches, it can achieve high-speed response

⑤ Can handle a wide temperature range

⑥ It is not affected by the color of the detected object to detect changes in the physical properties of the detected object, so it is hardly affected by the surface color, etc.

⑦ Different from the contact type, it will be affected by the surrounding temperature, surrounding objects, and similar sensors, including induction type and electrostatic capacity type, and the sensors will affect each other. Therefore, for the setting of sensors, mutual interference needs to be considered. In addition, in the induction type, the influence of surrounding metals needs to be considered, while in the electrostatic capacitance type, the influence of surrounding objects needs to be considered.