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21. 发明授权

US06810732B2 Water level sensor 失效
标题翻译：水位传感器
公开(公告)号：US06810732B2
公开(公告)日：2004-11-02
申请号：US09967933
申请日：2001-10-02
申请人： Jong-Chull Shon
发明人： Jong-Chull Shon
IPC分类号： G01F2300
CPC分类号： G01F23/24
摘要： Disclosed herein is a water level sensor. The water level sensor includes a reference electrode comprised of a plurality of electrode plates to detect electric conductivity of water filling a space between the electrode plates of the reference electrode. A measuring electrode is comprised of a plurality of electrode plates, which are extended along a length of a water tub to be longer than the electrode plates of the reference electrode and spaced apart from the electrode plates of the reference electrode to detect electric conductivity of water filling a space between the electrode plates of the measuring electrode.
摘要翻译：这里公开了一种水位传感器。水位传感器包括由多个电极板构成的参考电极，以检测填充参考电极的电极板之间的空间的水的电导率。测量电极包括多个电极板，其沿着水桶的长度延伸，比参考电极的电极板长，并与参考电极的电极板间隔开，以检测水的电导率填充测量电极的电极板之间的空间。

22. 发明授权

US5948310A Microwave oven with circularly polarized microwave feed structure 有权
标题翻译：微波炉带圆偏振微波进料结构
公开(公告)号：US5948310A
公开(公告)日：1999-09-07
申请号：US179459
申请日：1998-10-27
申请人： Jong-Chull Shon , Eung-Sup Lee
发明人： Jong-Chull Shon , Eung-Sup Lee
IPC分类号： H01Q15/12 , F24C7/02 , H05B6/70 , H05B6/72 , H05B6/74
CPC分类号： H05B6/708 , H05B6/704
摘要： A microwave oven for radiating microwaves generated from a magnetron into a cavity to heat and cook foodstuff disposed therein, the microwave oven comprising an antenna disposed between a magnetron and the cavity for converting the microwaves to circularly polarized waves to radiate same into the cavity, the microwave oven having the advantage in that the foodstuff in the cavity is heated by radiation of the circularly polarized waves, thereby enabling a uniform heating of the foodstuff and improving an absorption efficiency of microwave energy.
摘要翻译：一种微波炉，用于将从磁控管产生的微波辐射到空腔中，以加热和烹饪设置在其中的食品，微波炉包括设置在磁控管和腔之间的天线，用于将微波转换成圆偏振波，以将其辐射到腔中，微波炉的优点在于通过圆偏振波的辐射来加热空腔中的食物，从而能够均匀地加热食品并提高微波能量的吸收效率。

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