General > General Technical Chat

Why no Farad or Henry meter?

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Bud:

--- Quote from: mawyatt on November 27, 2023, 04:12:46 pm ---
--- Quote from: soldar on November 27, 2023, 03:57:01 pm ---How about a "meter meter" to measure meters?

--- End quote ---

That's a good one indeed!!!

Best,

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We have "Pizza pizza" fast food chain here.

harerod:

--- Quote from: themadhippy on November 27, 2023, 05:02:06 pm ---Quote
Here in GB it's hard to know which side of the pond one should stand on nowadays.
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you obviously need a pond meter to give an indication of were you nee to be.
...

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I still have some old spring type Pond meters in storage, which have been replaced by Newton meters. A real challenge for our American friends, since a single letter would change the unit - Pound force meters - while measuring the same physical phenomenon.

Make sure not to confuse with Newtonmeter meters (pound force feet meters?)...

SiliconWizard:

--- Quote from: mawyatt on November 27, 2023, 03:26:07 pm ---So why don't we call a meter that measures capacitance a Farad Meter (or uFarad meter), or a meter that measures inductance a Henry Meter (or uHenry meter)? We also call a meter that measures power a Watt meter???

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We have LCR meters. The reason is that measuring pure capacitance (or inductance) is in practice of very little use, apart from quick checks, that many general-purpose DMMs embed. So that doesn't warrant a dedicated device.
Same for measuring "power". There's more to it than just a value in W, so there's no point in making a dedicated device just measuring that (what power are you talking about anyway?) But there are devices such as "power analyzers", that can measure relevant parameters around the concept of power. Just lie for LCR meters - because a single raw value has no real practical significance, unless again you just need "quick checks", that again many general-purpose devices will offer.

schmitt trigger:
SiliconWizard;
Yours is the best answer, so far.

Real world inductors and capacitors have parasitic elements which should be accounted for if an accurate reading is to be expected.

coppercone2:
horse meter vs horse power meter both useful

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