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No idea how it would work... something like pots/pans with RFID tag that works in conjunction with some electronics in the stove? So when boiling over is detected, it sends a signal to the stove to turn down heat?
Infrared thermometer
http://www.pastryit..._FI40Lpostive_1.jpg
something like this [piluso, Jun 11 2013]
[link]
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It would work fine with halogen and induction hobs -
just not the old-style electric heating elements. |
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Better, though, to put the sensor on the hob top. I
don't know how you'd do that, which puts it on a par
with the idea as posted. |
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Even with the standard electric units, it should be
feasible. Remember that boiling water is pulling
heat out very quickly, and even a slight cooling will
reduce the boil level. You just might want a set
with the sensor set a bit lower. |
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As far as how you do it, that's a little harder. A
temperature sensor probably wouldn't do it, since
it will all happen right around local boiling point
(and you'd need a pressure sensor as well).
Possibly an optical sensor and clear pots or pans,
or at least clear patches. |
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The best might be either vision or ultrasonic from
a top (hood) mounted sensor, as long as you didn't
have lids on the pots. It would trigger and set two
heights (rim and liquid level) whenever a pot is
placed on the stove and analyze when the two get
closer to each other. You might end up needing
more than one camera with a high parallax to see
the movement, and you'd definitely need some
fairly complex vision algorithms. |
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Put a infrared thermometer [link] aiming the Pot/Pan from top and set the alarm to the desired temperature |
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//set the alarm to the desired temperature// Not a
good idea. Water which is boiling over is at the
same temperature as water which is simmering
nicely, namely the boiling point of water. |
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Is this about reaching boiling temperature or overflow caused by boiling ? In the first case, an alarm 2c or 3c below the boiling point must work. In the second case; a simple radar as distance meter checking the level it's the obvious choice.
For simmering liquids, a whistling lid could be connected via bluetooth to a power amplifier system. |
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//put the sensor on the hob top// That's been baked since at least the 70s. It's usually restricted to a single elephant, which has a temperature sensor in the middle and a 'simmer' setting on the corresponding control dial. No boiling over. |
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^^^ It all made sense up to "elephant". |
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