Thermal infrared 16 x 4 pixel imager features programmable frame rate of 0.5Hz to 512Hz

Available now from Digi-Key, the Melexis' MLX90621 infrared array delivers a significantly expanded field of view at 30 x 120 degrees and a four times faster measurement speed or, equivalently, a two times lower noise level. Optional versions are available with fields-of-view matching previous generations of IR array sensors (60 x 15 and 40 x 10 degrees). The improved field-of-view enables a single MLX90621 sensor to measure temperature profiles of both passenger and driver from a single position on the centre-stack of the dashboard. In a room air-conditioning system it was previously necessary to mount the sensor on a stepper-driven mechanical scanner to sweep the scene and provide a full view of the area in front of the cooling appliance. The expanded field-of-view eliminates the need for mechanical scanning and replaces it with a single, fixed sensor able to image the necessary area directly. The resulting reduction in cost, measurement time, and system complexity provide options and markets for cooling appliance designers, says the company.