this post was submitted on 26 Jul 2023
129 points (92.2% liked)

Memes

45966 readers
1751 users here now

Rules:

  1. Be civil and nice.
  2. Try not to excessively repost, as a rule of thumb, wait at least 2 months to do it if you have to.

founded 5 years ago
MODERATORS
 
all 7 comments
sorted by: hot top controversial new old
[–] [email protected] 31 points 1 year ago (1 children)
[–] [email protected] 8 points 1 year ago

Thanks, was just about to ask

[–] [email protected] 11 points 1 year ago* (last edited 1 year ago) (1 children)

God I hate those no-contact temperature sensors - people use them on literally every surface without realizing there's something called thermal emissivity - different surfaces reflect and radiate heat differently. A glass or metal surface will reflect heat much differently from wood or drywall surfaces.

These cheap no-contact temp sensors usually are set to measure the heat from surfaces found in home construction - drywall, wood, painted surfaces, etc. Some of the nicer ones can have adjustable emissivity but most people never tinker with that setting.

Now if you're using a nice FLiR thermal camera, you absolutely need to tinker with emissivity to get a good image.

Given the fact that the display on this temp sensor does not display the emissivity setting, I'd assume it's fixed - and not set to accurately read the temperature of that metal surface.

[–] riodoro1 1 points 1 year ago* (last edited 1 year ago)

Speaking from experience with mine set to .95ε an anodized aluminum surface actually comes close to what wood measures at same temp.

[–] [email protected] 7 points 1 year ago

Gaming on mac huh!??!

[–] Nioxic 6 points 1 year ago

it boots its clock till it hits its thermal limit

Dell XPS does the same thing. its fairly normal for a lot of higher end laptops.

if it runs at 90 degrees then youre technically leaving performance on the table...