bigclive

Testing a UV/UVC test card (Patreon)

Published:

2023-02-09 00:28:13

Imported:

2023-02

Content

Just a quick video to show the two modes of this card in operation.

It's designed to give a visual indication that your UV source is emitting roughly in the right spectrum. The test method for both types of UV is different.

The card can also be used to test things like glasses for their ability to block UVC. Quite handy when experimenting with germicidal lamps.

https://www.youtube.com/watch?v=n3KaLlaDZEg

Files

Testing a UV/UVC test card

I'm not sure how widely these were available before the pandemic, but they're now all over eBay due to the market that was created for testing germicidal wands and lights. One very useful function of these it to test the ability of materials to block UVC light. By placing the test material (like my glasses) between the UVC source and the sensing surface it will indicate if the UVC is blocked. In my case all my glasses blocked UVC, which is reassuring. The UVA test surface seems to respond right down to the near-UV LEDs in the 395-405nm range. To find these on eBay use the keywords - UVC test card. Price should be around 5 £$€ for a pack of 5 and not much more for a pack of 10. If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:- http://www.bigclive.com/coffee.htm This also keeps the channel independent of YouTube's algorithm quirks, allowing it to be a bit more dangerous and naughty. #ElectronicsCreators