Electric heating – Heating devices – With power supply and voltage or current regulation or...
Patent
1999-03-19
2000-09-12
Paschall, Mark
Electric heating
Heating devices
With power supply and voltage or current regulation or...
219481, 219501, 219497, 374102, 73587, 73590, 99330, H05B 102
Patent
active
061181048
ABSTRACT:
The present invention provides a method of determining the boil states of a liquid as measured by an acoustic sensor which measures the acoustic signal generated by the liquid as it is heated. The acoustic signal is smoothed and a first derivative of the acoustic signal is calculated. Also the frequency of the acoustic signal is measured. Derivative inflection points, zero slope points, and acoustic signal frequencies are utilized to determine the pre-simmer, simmer, pre-boil, boil, boil dry, and boil over states of the liquid.
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Badami Vivek Venugopal
Berkcan Ertugrul
Bonanni Pierino Gianni
Saulnier Emilie Thorbjorg
Breedlove Jill M.
General Electric Company
Paschall Mark
Thompson John F.
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