SmartiPi NoIR Grid Eye Thermal Camera

 

 

Infrared

From Wikipedia, the free encyclopedia 

https://en.wikipedia.org/wiki/Infrared

 

 

     Infrared radiation is electromagnetic radiation (EMR) with longer wavelengths than those of visible light, and is therefore invisible to the human eye.

Most of the thermal radiation emitted by objects near room temperature is infrared.

 

     Infrared was discovered in 1800 by astronomer Sir William Herschel, who discovered a type of invisible radiation in the spectrum lower in energy than red light, by means of its effect on a thermometer. Slightly more than half of the total energy from the Sun was eventually found to arrive on Earth in the form of infrared. The balance between absorbed and emitted infrared radiation has a critical effect on Earth's climate.

 

Thermography

From Wikipedia, the free encyclopedia

https://en.wikipedia.org/wiki/Thermography

 

 

     Infrared thermography (IRT), thermal imaging, and thermal video are examples of infrared imaging science. Thermographic cameras usually detect radiation in the long-infrared range of the electromagnetic spectrum (roughly 9,000–14,000 nanometers or 9–14 µm) and produce images of that radiation, called thermograms. Since infrared radiation is emitted by all objects with a temperature above absolute zero according to the black body radiation law, thermography makes it possible to see one's environment with or without visible illumination. The amount of radiation emitted by an object increases with temperature; therefore, thermography allows one to see variations in temperature.

 

When viewed through a thermal imaging camera, warm objects stand out well against cooler backgrounds; humans and other warm-blooded animals become easily visible against the environment, day or night. As a result, thermography is particularly useful to the military and other users of surveillance cameras.

 

 

     Thermography has a long history, although its use has increased dramatically with the commercial and industrial applications of the past fifty years. Firefighters use thermography to see through smoke, to find persons, and to localize the base of a fire. Maintenance technicians use thermography to locate overheating joints and sections of power lines, which are a sign of impending failure. Building construction technicians can see thermal signatures that indicate heat leaks in faulty thermal insulation and can use the results to improve the efficiency of heating and air-conditioning units.

 

 

Thermal energy

 

     Thermal images, or thermograms, are actually visual displays of the amount of infrared energy emitted, transmitted, and reflected by an object. Because there are multiple sources of the infrared energy, it is difficult to get an accurate temperature of an object using this method. A thermal imaging camera is capable of performing algorithms to interpret that data and build an image. Although the image shows the viewer an approximation of the temperature at which the object is operating, the camera is actually using multiple sources of data based on the areas surrounding the object to determine that value rather than detecting the actual temperature.

 

 

 

SmartiPi NoIR Thermal Camera

 

 

Parts List

 

 

Raspberry Pi 3

http://www.newark.com/raspberry-pi/raspberrypi3-modb-1gb/sbc-raspberry-pi-3-mod-b-1gb-ram/dp/77Y6520

Raspberry Pi 7" Touch Screen Display

http://www.newark.com/raspberry-pi/raspberrypi-display/display-7-touch-screen-rpi-sbc/dp/49Y1712

SmartiPi Touch Case for Raspberry Pi Touchscreen Case - Smooth Version

http://www.newark.com/smarticase/smtnl/smartipi-touch-case-for-raspberry/dp/31AC4126

https://www.adafruit.com/product/3187

 

SmartiPi Touch Case for Raspberry Pi Touchscreen - LEGO Version

http://www.newark.com/smarticase/smtyl/smartipi-touch-case-for-raspberry/dp/31AC4127

https://www.adafruit.com/product/3576

SmartiPi Touch Back Cover - Large

https://www.adafruit.com/product/3570

Aluminum Heat Sink for Raspberry Pi 3 - 15 x 15 x 15mm

https://www.adafruit.com/product/3082

Adafruit AMG8833 IR Thermal Camera Breakout

https://www.adafruit.com/product/3538

Miniature 5V Cooling Fan for Raspberry Pi

https://www.adafruit.com/product/3368

 

Raspberry Pi 8MP Camera Board v2

http://www.newark.com/raspberry-pi/rpi-8mp-camera-board/camera-board-8-mp-raspberry-pi/dp/77Y6521

Raspberry Pi 8MP NoIR Camera Board v2

http://www.newark.com/raspberry-pi/rpi-noir-camera-board/camera-board-8-mp-raspberry-pi/dp/77Y6522

Power Supply White Raspberry Pi Micro USB 5.1V 2.5A

http://www.newark.com/stontronics/t5875dv/psu-raspberry-pi-5v-2-5a-multi/dp/77Y6535

 

MICROSDHC CARD 32GB PRELOAD NOOBS

http://www.newark.com/integral/tsraspi10-32g/microsdhc-card-32gb-preload-noobs/dp/13AC9477

 

32GB SanDisk Ultra Flash Memory Card

http://www.newark.com/sandisk/sdsqunc-032g-gn6ma/32gb-sandisk-ultra-microsdhc-class/dp/31AC4045

 

Stellar Labs Miniature Wireless USB Keyboard with Touchpad

http://www.newark.com/stellar-lab-computer-plus/83-17317/miniature-wireless-usb-keyboard/dp/84Y8222

 

 

Software

 

The Raspbian Stretch Lite and Desktop Image can be found here.

 

https://www.raspberrypi.org/downloads/raspbian/

 

The Raspberry Pi 7" Display

 

https://www.raspberrypi.org/documentation/hardware/display/README.md

 

https://www.raspberrypi.org/learning/addons-guide/display/

 

Documentation for usage of the Pi Camera

 

https://projects.raspberrypi.org/en/projects/getting-started-with-picamera

 

Adafruit has created this amazing AMG8833 IR Thermal Camera Breakout and provided helpful code for use with Raspbian and Arduino .

 

https://learn.adafruit.com/adafruit-amg8833-8x8-thermal-camera-sensor

 

 

The Build

 

15 x 15 x 15mm Aluminum Heatsink is perfect fit for this case.

5v Fan brings cool air over the heatsink on the Broadcom BCM2837

A  piece of recycled Metal Screen protects the air inlet of the fan.

To allow hot air to escape the enclosure,  a series of exhaust ventilation holes were created.

The Pi NoIR Camera is in an Adafruit Case with a 12" CSI Ribbon Cable.

The  AMG8833AMG8833 IR Grid Eye Thermal Camera has been wrapped in High Temperature Polyimide Tape (Kapton) and secured with hot glue.

Installation of the back cover is quick and easy. The cover is secured by four screws in the VESA mounting holes.

There is still plenty of room under the back cover for additional components.

 

Usage

 

thermal self portrait

IR Thermogram Self Portrait

 

Raspberry Pi 3's Quad-Core 1.2GHz BCM2837 Processor.

 

These images were featured in the following review.

 

Raspberry Pi Compute Module 3 Development Kit - Review

 

 

Thanks for checking out this Raspberry Pi Project.

 

Check back for updates.

 

 

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