Human proximity sensor application and working principle

Human proximity sensors, also known as contactless proximity sensors, are ideal electronic switch sensors. When the metal detector is close to the sensor's sensing area, the switch can be non-contact, no pressure, no spark, quickly send electrical instructions, and correctly reflect the position and stroke of the structure, even if used for general stroke control, positioning accuracy, Operating frequency, service life, ease of installation and adjustment.

Overview Human proximity sensors, also known as contactless proximity sensors, are ideal electronic switch sensors. When the metal detector is close to the sensor's sensing area, the switch can be non-contact, no pressure, no spark, quickly send electrical instructions, and correctly reflect the position and stroke of the structure, even if used for general stroke control, positioning accuracy, The operating frequency, service life, ease of installation and adjustment, and the ability to use in harsh environments are beyond the capabilities of a typical mechanical type of travel switch. It is widely used in machine tools, metallurgy, chemical, textile and printing industries. In the automatic control system can be used as limit, counting, positioning control and automatic protection links. Proximity sensing has the advantages of long service life, reliable operation, high repeatability, no mechanical wear, no spark, no noise, and strong vibration resistance. So far, the application range of proximity sensors has become increasingly widespread, and its own development and innovation speed is extremely fast.

The human proximity sensor has gradually become familiar with and applied as a technical defense measure. In order to better implement the GB/T10488-1997 human proximity sensor's national scale implementation, so that more people understand the principle and application of the human proximity sensor, is now combined with the human body proximity sensor developed by Nanjing Yuantuo technology to introduce the relevant human body The basic knowledge of proximity sensor principle and application.

Functional features:

(1) Has the function of penetrating the wall and non-metallic doors and windows, and is used for concealed built-in installation of bank ATM monitoring system;

(2) Detecting that the human body is close to the interval is adjustable. The adjustable radius is (about) 0-5 meters;

(3) The detection area is double-sectored and covers a wide range of space;

(4) Double comparison of the amplitude and width of the detection signal, false alarm;

(5) There is a higher ambient temperature to adapt to the performance, and does not affect the detection agility at -20 to 50 degrees Celsius.

(6) Non-contact detection.

(7) Not subject to temperature, humidity, noise, airflow, dust, light, etc., suitable for harsh environments.

(8) Strong resistance to radio frequency interference.

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