The pyroelectric infrared sensor is an infrared sensor that uses the pyroelectric effect of ferroelectric ceramic and can detect temperature changes. The slight infrared rays emitted from the human body can also be detected sharply.

Thermopile, on the other hand, is a thermal infrared sensor that generates a thermoelectromotive force according to the amount of incident energy when it receives infrared radiation emitted from an object, and can detect the absolute amount of energy (temperature).

The SO1-V A2 flame detector is based on the pyroelectric effect of LiTaO3 single crystal, combined with ultra-low noise JFET and silicon substrate narrow band filter. The detector have good anti-interference ability and high sensitivity at the same time.This type of detector can be used in small space flame detection.

The SO1-V A1 flame detector is based on the pyroelectric effect of LiTaO3 single crystal, combined with ultra-low noise JFET and silicon substrate narrow band filter. The detector have good anti-interference ability and high sensitivity at the same time.This type of detector can be used in long distance flame detection.

BZ series zirconia oxygen analyzer is mainly composed of two parts: “BZ-S probe” and “BZ-W transmitter”.

1.BZ-S probe: It is an oxygen sensor equipped with zirconium oxide battery, whose main function is to measure the oxygen content in flue gas in real time and output the corresponding oxygen potential signal data.

2.BZ-W type transmitter: one is to control the working temperature of the thermostat at the front of the probe; the other is to convert the potential signal value output from the probe into the corresponding oxygen value, and convert the oxygen value into the corresponding current value output or digital signal for transmission.

Infrared optics are used to collect, focus or collimate light in the near infrared (NIR), short wave infrared (SWIR), mid wave infrared (MWIR) or long wave infrared (LWIR) spectra. The infrared spectrum falls into the 700 – 16000 nm wavelengths, with each spectral range as follows.

NIR 700 – 900nm
SWIR 900 – 2300nm
MWIR 3000 – 5000nm
LWIR 8000 – 14000nm

Sapphire filter, because sapphire has the cut-off characteristic of long wave infrared, the detector has both high signal amplitude and anti-interference performance, and is often used in fire water cannon.Sapphire substrate filter will be the development trend of pyroelectric flame detector in the future.