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Switch sockets must be used in our daily lives, of course, we are not unfamiliar with common switch sockets. But I don’t know if you have ever heard of inductive switches? Today this article will introduce you to the sensor switch.

The Introduction of the Sensor Switch

The sensor switch refers to the human body infrared intelligent sensor switch, which is a switch that is automatically activated when someone passes by the infrared sensor detection area.

The main component of the human body infrared sensor switch is the human body pyroelectric infrared sensor. The human body has a constant body temperature, usually 37 degrees, so it emits infrared rays with a specific wavelength of about 10 um. Passive infrared probes work by detecting infrared rays of about 10 um emitted by the human body. The infrared light of about 10 um emitted by the human body is enhanced by the Fei Nier filter and concentrated on the infrared sensor source.

Infrared induction sources usually use pyroelectric elements, which will lose the charge balance when the temperature of the infrared radiation of the human body changes, and discharge the charge outward. The subsequent circuit can trigger the switch after the detection and processing. If the person does not leave the sensing range, the switch will continue to be turned on; after the person leaves, the switch will automatically delay to turn off the load.

Various Types of Sensor Switches

There are some different types of sensor switches, you can choose according to your needs.

• Human Body Sensor Switch

It is an automatic control product based on infrared technology. When someone enters the sensing range, the dedicated sensor detects the change in the infrared spectrum of the human body and will automatically switch on the load. If the person does not leave the sensing range, the load will continue to be connected.

When the person leaves, the load is automatically turned off after a delay. This sensor switch is convenient, safe and energy-saving.

• Infrared Sensor Switch

It is composed of infrared detection circuit, infrared signal processing circuit, signal output control switch circuit, and main parts of power supply circuit. Infrared signal processing integration mainly completes the processing of infrared signals. The power supply of the circuit separately supplies power to each sub-circuit in the circuit according to the requirements of each part of the circuit to ensure the stable performance of the circuit.

The infrared sensor switch has the advantages of long detection distance, wide application range, strong anti-interference ability and stable working performance.

• Ultrasonic Sensor Switch

The sensor switch uses the ultrasonic principle of the Doppler effect, including the ultrasonic transmitting part, the ultrasonic receiving and amplifying part, the detecting part and so on. Its sensitivity is very high and its range can be adjusted greatly. The sensor switch has low energy consumption, which is easy to adjust and control, and has low requirements for power supply and working environment.

• Electromagnetic Sensor Switch

The sensor switch uses the basic electromagnetic induction principle, which is generally used for circuit control in industry and housing. The electromagnetic sensor switch is a non-contact switch. It can be used in control systems such as hoists and elevators to ensure safe operation and accurate parking.

Nowadays, with the rapid development of science and technology, the emergence of sensor switches has also brought great convenience to people's lives. People can manipulate the switches just by sensing them. But choosing a right sensor switch is also very important. We are china oem sensor switch factory. Any interests, welcome to contact us.

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