Last updated on April 16, 2014 at 14:05 EDT

Active Pixel Infrared Thermometer Array From Melexis Overcomes Cost Hurdles Associated With Thermal Imaging

March 20, 2012

TESSENDERLO, Belgium, March 20, 2012 /PRNewswire/ –

The MLX90620 FIRray sensing device from Melexis, utilizes the company’s innovative
non-contact temperature measurement technology to create a highly cost-effective
thermography solution. Covering a -20degree(s)C to 300degree(s)C temperature range, this
16 x 4 element far infrared (FIR) thermopile sensor array produces a map of heat values
for the target area in real time, avoiding the need to scan the area with a single point
sensor or to use of an expensive microbolometer device.

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The MLX90620 can greatly simplify the thermal imaging system it is integrated into by
immediately capturing 64 pixel images in 2D, thus keeping the price point in the range
needed for high volume, low cost applications. By integrating an amplifer and ADC in every
pixel, the array offers an adjustable frame rate from 0.5 Hz to 64 Hz. Accuracy levels of
plus or minus1.5degree(s)C are maintained when operating in the 0degree(s)C to
50degree(s)C range. Two field of view (FoV) options are available 60degree(s) x
15degree(s) and 40degree(s) x 10degree(s). A high speed I2C compatible digital interface
and a triggered mode for synchronization with a control unit mean that the MLX90620 can be
used individually or combined in multiple devices to form an array with a larger imaging

The performance of this sensor array is made possible through co-development by
Melexis and Heimann Sensor GmbH – bringing together decades of thermopile and signal
processing expertise to offer the industry a game-changing product.

FIR imaging is becoming very important within the automotive arena, allowing safety
levels to be improved. The MLX90620 FIRray can be utilized in applications such as
pedestrian detection, close range blind spot detection and occupancy classification.
Thermal measurement and occupancy functions in smart building control systems can also
benefit from the accurate multi-point thermal images provided by this array. In the
domestic environment it can enable smarter microwave and conventional ovens. Concerns
about energy efficiency are driving demand for thermal imaging to detect heat losses in
homes and graphically illustrate where improvements are required. The MLX90620 is highly
suited to the consumer and contractor accessible low resolution thermal imaging cameras
needed for such tasks. In industrial environments the device opens new opportunities for
smart process controls and thermal testing. Finally, as a smart fire detection sensor it
will help fire fighters and other emergency service personnel to detect hot spots, escape
routes and hidden fires.

The MLX90620 is packaged in an industry standard TO-39 can. An evaluation board and PC
demonstration software enable quick product development for system integration. It is
priced at 53.77 USD in 100 pc. quantities.

For more information please visit: http://www.melexis.com/MLX90620



SOURCE Melexis

Source: PR Newswire