Ultrapurple
Wall wart thermal view
We all ignore those wall wart mains adapters we cheerfully leave plugged in for weeks or years at a time but they all soak up electricity and regurgitate it as heat. And guess who ends up paying for the power? Yup.
Here we see a typical linear power supply - one of the old style with a bulky, heavy transformer inside. It isn't that warm to the touch but the thermal imager reveals all. I was amazed that it was possible to read the text on the label, presumably thanks to the emissivity of the ink, even with an uncooled handheld imager strapped to my phone.
Comments are warmly invited. If you like this image, please join the Therm-App (and others) thermal imaging group at www.flickr.com/groups/therm-app-users/
Wall wart thermal view
We all ignore those wall wart mains adapters we cheerfully leave plugged in for weeks or years at a time but they all soak up electricity and regurgitate it as heat. And guess who ends up paying for the power? Yup.
Here we see a typical linear power supply - one of the old style with a bulky, heavy transformer inside. It isn't that warm to the touch but the thermal imager reveals all. I was amazed that it was possible to read the text on the label, presumably thanks to the emissivity of the ink, even with an uncooled handheld imager strapped to my phone.
Comments are warmly invited. If you like this image, please join the Therm-App (and others) thermal imaging group at www.flickr.com/groups/therm-app-users/