h a l f b a k e r yWe got your practicality ... right here.
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Why a temperature sensor? Shouldn't it be a device for
measuring softness? A cylinder of standard diameter,
pressed into the ice cream with a standard pressure. When
it moves by a standard distance, Ding!* your snack is ready. |
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I'd bet money such devices are already used in commercial
ice cream manufacture. |
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*Ding, not beep, because I think it could be 100%
mechanical, without electronics. |
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For the cylinder to work, you would need to test the
icecream periodically. I think the purpose of this idea is
to
alert you when your icecream is ready to eat. |
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It could be done mechanically, though. Use a bimetallic
strip and some cleverness and a magnet, and a bell can go
"ting" (or "ding", for the US market). You could even have
several bells that go "ting" in different keys, as the
icecream warms. |
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[+], because I think this is a good idea. |
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Pressure would be a much better measurement than
temperature because I'm pretty sure that the cream stays
at freezing temp long after proper spooning time.
However, all icecreams have unique viscosities so the
pressure measurement will need calibration for each
different brand and flavor. |
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Heavy cylinder (lead, say, in plastic bag). Wind-up
alarm-clock. Tie one end of a string to the cylinder, the
other to the latch on the alarm-clock ringer. Weight sinks
gradually into ice cream, pulling string taut. Ding! |
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Calibration might require the consumption of much ice
cream, but that's not a bug, it's a feature. |
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