Principle and Application

    Some material’s polar molecules can arrange themselves in order under specific conditions and generate spontaneous polarization. When the material undergoes temperature changes after absorbing infrared heat energy, the molecule state also changes and thereby leads to changes in the surface bound charge. This is what we call pyroelectric effect. Utilizing this effect, and matching it with different process structure and different infrared filters, the company has produced some ten types of pyroelectric sensors including single, double and four-element sensors that are highly sensitive and perceptive even for very weak infrared rays. As a result, the product is widely used in radiation measurement, automatic control and anti-intrusion and has brought about safety, convenience and comfort for people’s work and life.