Extech IR250 infrared thermometer disassembly and plans for thermal imaging
One of my ongoing projects is to develop a low-cost thermal imaging camera. In this video, I take apart an Extech IR250 infrared thermometer with the intention of grabbing an analog or digital signal so that I can record temperature measurements while using a scanning or image processing device to select portions of the scene being examined. Unfortunately, it looks like the analog circuitry is completely sealed inside a custom IC that is hidden under a blob of potting material. I'll remove the IR sensor from the board and build my own analog amplification and digitization hardware.
Common digital output IR thermometer sensor:
http://www.melexis.com/Infrared-Thermometer-Sensors/Infrared-Thermometer-Sensors/MLX90614-615.aspx
TPS334 sensor datasheet:
http://www.datasheetcatalog.org/datasheet/perkinelmer/TPS334.pdf
Analog Devices app note regarding thermopile sensors:
http://www.analog.com/en/all-operational-amplifiers-op-amps/operational-amplifiers-op-amps/products/technical-articles/using_thermopile_sensor_in_ir_digital_thermometers/resources/fca.html
Servo pan/tilt IR imaging scanner project:
http://www.cheap-thermocam.tk/
Redshift thermal imaging:
http://redshiftsystems.com/site
Видео Extech IR250 infrared thermometer disassembly and plans for thermal imaging канала Applied Science
Common digital output IR thermometer sensor:
http://www.melexis.com/Infrared-Thermometer-Sensors/Infrared-Thermometer-Sensors/MLX90614-615.aspx
TPS334 sensor datasheet:
http://www.datasheetcatalog.org/datasheet/perkinelmer/TPS334.pdf
Analog Devices app note regarding thermopile sensors:
http://www.analog.com/en/all-operational-amplifiers-op-amps/operational-amplifiers-op-amps/products/technical-articles/using_thermopile_sensor_in_ir_digital_thermometers/resources/fca.html
Servo pan/tilt IR imaging scanner project:
http://www.cheap-thermocam.tk/
Redshift thermal imaging:
http://redshiftsystems.com/site
Видео Extech IR250 infrared thermometer disassembly and plans for thermal imaging канала Applied Science
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