Comment on Scales that refuse to measure if the battery isn't brand new

• marcos@lemmy.world ⁨12⁩ ⁨hours⁩ ago

  The GP is not describing a piezoelectric scale. And you won’t be able to find any piezoelectric scale that is anything similar to “cheap”.

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  • Wizard_Pope@lemmy.world ⁨12⁩ ⁨hours⁩ ago

    Well which principle do the cheap ones operate on?

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    • Thorry84@feddit.nl ⁨11⁩ ⁨hours⁩ ago

      It’s actually a plastic ribbon with a metallic foil in a zigzag pattern on top of it. It’s extremely cheap and does a pretty good job. It usually sits on top of a metal bar that can deflect a tiny little bit.

      You can read all about it here: en.wikipedia.org/wiki/Strain_gauge

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      • Wizard_Pope@lemmy.world ⁨11⁩ ⁨hours⁩ ago

        Ah okay.

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