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Melexis Unveils Far Infrared Thermopile Sensor Array

Melexis has introduced an advanced sensing device called MLX90620 FIRray, which addresses the cost problems that are normally associated with thermal imaging.

MLX90620 FIRray

The sensor device uses a new non-contact temperature measurement technology to produce a cost-effective thermography solution. It covers a temperature range of -20°C to 300°C and generates heat values for a specific area in real time. This eliminates the need to use a costly microbolometer device or to check the area with a point sensor.

When integrated into the thermal imaging system, the far infrared thermopile sensor captures 64 pixel two-dimensional images, thereby maintaining the price range required for low cost and high volume applications. When a pixel is combined with an ADC and amplifer, the sensor array provides a frame rate from 0.5 to 64 Hz. When the array is operated in the 0°C to 50°C range, precision levels of ±1.5°C can be maintained. It features two field of view options such as 40°x10° and 60°x15°.

The MLX90620 is equipped with a triggered mode with a control unit and a I2C compatible digital interface that allow it to be utilized either separately or combined in various devices to produce a bigger imaging resolution array. Heimann Sensor GmbH and Melexis have co-developed the advanced sensor array.

The sensor array can be used in a number of applications like occupancy classification, close range blind spot detection, and pedestrian detection. The array is packed in a TO-39 can. In addition, a PC demonstration software and an evaluation board allow rapid product development for system assimilation.



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