公开(公告)号：US4792682A

公开(公告)日：1988-12-20

申请号：US888681

申请日：1986-07-21

申请人： Yasushi Endou ,  Hisao Takahashi ,  Tetsuaki Kon

发明人： Yasushi Endou ,  Hisao Takahashi ,  Tetsuaki Kon

IPC分类号： G01J5/02 ,  G01J5/34 ,  G01J5/00

CPC分类号： G01J5/34

摘要： A pyroelectric infrared detector or infrared ray receiving element comprising a plurality of pyroelectric operating areas, utilizing one of the operating areas as an infrared radiation detection area having a light-transmissive surface electrode. The electrical signal produced in the signal detection area is compensated by an electrical signal produced in another pyroelectric operating area having a light-reflective surface electrode. Temperature drift and noise due to vibration are drastically reduced through the compensation.

摘要翻译： 一种热电红外检测器或红外线接收元件，其包括多个热电操作区域，利用其中一个操作区域作为具有透光表面电极的红外辐射检测区域。 在信号检测区域中产生的电信号由在具有光反射表面电极的另一个热电操作区域中产生的电信号补偿。 由于振动引起的温度漂移和噪音通过补偿大大降低。

公开(公告)号：US5233148A

公开(公告)日：1993-08-03

申请号：US801962

申请日：1991-11-27

申请人： Takuji Magara ,  Hisashi Yamada ,  Yasushi Endou

发明人： Takuji Magara ,  Hisashi Yamada ,  Yasushi Endou

IPC分类号： B23H1/02

CPC分类号： B23H1/022 ,  B23H2300/20

摘要： In an electrical discharge machining apparatus, the average machining gap voltage is controlled to be a predetermined value even if a discharging operation is interrupted. This is accomplished by providing a bypass circuit or an inverse voltage providing circuit that responds to an interruption in the discharging operation. By controlling the average machining gap voltage, electrolytic corrosion and magnetization of the workpiece is minimized.