Broadcom's single - and dual-channel pyroelectric detectors are available in the TO-39 package

mar 20 2023 2023-03 Sensors Broadcom

Broadcom's thin-film pyroelectric infrared (IR) flame detectors offer unusually high response rates, a wide field of view (typically 100°, limited by filter bandpass specifications), and fast recovery from thermal shock and electrical hit (typically 1-second shutdown). This high performance current mode sensor achieves a signal to noise ratio of ~10,000 and provides fast, stable response over a wide range of operating frequencies.

Broadcom's thin-film pyroelectric infrared (IR) flame detectors offer unusually high response rates, a wide field of view (typically 100°, limited by filter bandpass specifications), and fast recovery from thermal shock and electrical hit (typically 1-second shutdown). This current mode sensor has an excellent signal-to-noise ratio over the 8 Hz to 10 Hz flicker range of the flame. It can identify the flame source accurately in the three infrared flame detection system.

The sensor element is built into a low noise circuit with a CMOS operational amplifier with a 10 GΩ feedback resistor that outputs a voltage signal around half the power track. Broadcom thin-film pyroelectric infrared sensors are used for gas detection and other substance concentration measurements with extremely high response, low shrinkage, and excellent thermal and electrical stability.

This high performance current mode sensor achieves a signal to noise ratio of ~10,000 and provides fast, stable response over a wide range of operating frequencies. The sensor element is built into a low noise circuit with a CMOS operational amplifier with a 10 GΩ feedback resistor that outputs a voltage signal around half the power track

Features

● Fast response speed, high resolution and low power consumption
● High response rate and signal to noise ratio
● Steady: Low voice
● Thermal stability to slow drift and thermal shock
● Instant connection
● Long service life: stable pyroelectric material
● Operating frequency: 1hz to 40hz; The signal-to-noise ratio is greater than 10hz to 15hz
● Wide selection of filters
● Extended temperature range
● The required external gain is smaller
● Reliable and easy to use
● Excellent hardware, software and algorithm development support

Applications

● Gas detection and analysis
● Respiratory analysis/capnography
● Additional detection
● Refrigerant
● Anesthesia
● Exhaust gas
● Custom filter
● Methane detection
● Carbon dioxide detection/air quality sensing
● Fire/flame detection

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