Intrinsically Safe Thermoluminescence Control Sensor/Pyroelectric Infrared Sensor

Pyroelectric infrared sensor, also known as pyroelectric infrared sensor, is a popular infrared detector. It detects infrared radiation by using the charge created by the material when the temperature changes, and is widely used in applications such as human detection, security alarm systems, and automatic lighting.

Technical Parameters

1. Working voltage: DC12~24V;

Working current: ≤50mA;

2. Detection performance: The sensor generates an output signal when it detects human body heat within a range of 5 meters;

3. Output signal: One set of normally open contacts,

Contact capacity: DC24.5V;

4. Response time: ≤5S;

5. Transmission distance: Not less than 1km.

Working Principle

The operating principle of this sensor is based on the material's pyroelectric effect, which means that when exposed to infrared radiation, the temperature increases, causing the positive and negative charges inside the material to separate. The sensor detects the change in charge and converts it into a voltage signal, which the system interprets as the presence of a human body or other heat source.

Advantages

Non-contact detection

There is no need for direct touch with the object to be detected, no interference or impact on the object to be detected, and non-contact detection can be done at extended distances.

High sensitivity

It can detect extremely small changes in infrared radiation and is particularly sensitive to infrared radiation emitted by things such as humans.

Fast response time

It can detect changes in infrared light and generate matching electrical impulses in real time.

High reliability

It has a basic and durable structure, stable and dependable performance, and can operate for an extended period of time in a variety of environments.

Low cost

The pyroelectric infrared sensor is both affordable and effective.