Finding things in walls: Difference between revisions
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(Created page with " ===Stud finder=== <!-- Capactively measures ''change'' in density. Just poking it at a wall will not do anything useful. You'll need to give it a reference, relative to which you find something else. Put it on the wall, press the button, it takes a reference of the density it senses. Move it sideways until Most will want to see an ''increase'' in density - so you will find the ''edge'' of wood. Lowering density tends to be reported as an error - this e.g. l...") |
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Measures ''change'' in density, using capacitance | |||
Just poking it at a wall will not do anything useful. | Just poking it at a wall will not do anything useful. | ||
Which needs calibration each time. | |||
Put it on the wall, press the button, it takes a reference of the density it senses. | Put it on the wall, press the button, it takes a reference of the density it senses. | ||
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Most | Most want to see an ''increase'' in density, so you will find the ''edge'' of wood. | ||
Lowering density tends to be reported as an error - this e.g. lets you figure out that you started above an actual stud. | Lowering density tends to be reported as an error - this e.g. lets you figure out that you started above an actual stud. | ||
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However, to also work when there is ''no'' current flow, | However, to also work when there is ''no'' current flow, | ||
you want something that actively detects | you want something that actively detects any conductor. | ||
Meaning you will also find nails, metal edging, electrical lines not currently carrying power. | |||
This is actually much like a, well, metal detector | This is actually much like a, well, metal detector | ||
Revision as of 02:16, 26 August 2023