Apparatus and method for measuring food temperature in microwave oven
US5876120A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 11, 1997 |
| Grant date | Mar 2, 1999 |
| Priority date | — |
| Expiry date | Jun 11, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J5/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and method for measuring a food temperature in a microwave oven makes it possible to precisely measure a temperature of food placed in a microwave oven by providing thereto a simple circuit composition in order to carry out the measurement without regard to kinds of food, cooking, heating device or temperature variation therearound. The apparatus and method realizes a simplified temperature measuring apparatus, thereby facilitating miniaturization thereof and reinforcing price competitiveness, wherein the compensation voltage variation with regard to an ambient temperature variation is adjusted to disclose a linear characteristic, and a new output voltage is generated using a final output voltage and a compensation voltage in a temperature range in which the compensation voltage is non-linearly disclosed in accordance with the variation of the ambient temperature, thereby precisely compensating the ambient temperature which is variable in a wide range thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.