High frequency heating device
专利汇可以提供High frequency heating device专利检索，专利查询，专利分析的服务。并且PURPOSE: To make the temperature measurement of the object to be heated accurate without receiving the effect of high frequency noise by charging an integrator for a specified time with the temperature signal voltage of the object to be heated and measuring the temperature of the object to be heated based on the charged charge quantity thereof.
CONSTITUTION: When the heated object temperature voltage signal Vin is inputted to an integrator 1 from temperature signal input terminal 3, an output voltage is produced at the input point (a). The voltage at the point (b) after the specified period T
1 is proportional to the heated object temperature voltage signal Vin. This output voltage value begins to reset in the OV level direction at the same instant when a changeover switch 2 is changed over to negative constant voltage terminal 4. Since the decreasing gradient of said output voltage is constant, measuring the time T
2 from the point (b) up to the point (c) where the output voltage crosses the OV level enables the heated object temperature voltage signal Vin to be known. Since not the instantaneous voltage of the temperature signal input terminal but the mean value within the specified time may be measured in this way, the effect of high frequency noise may be eliminated.
COPYRIGHT: (C)1979,JPO&Japio，下面是High frequency heating device专利的具体信息内容。
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9 电容式指纹传感器
