公开(公告)号：US06922577B2

公开(公告)日：2005-07-26

申请号：US10360704

申请日：2003-02-10

申请人： Tetsuya Nakashima ,  Yasuji Inobe ,  Seiji Nagakusa ,  Teiyuu Kimura

发明人： Tetsuya Nakashima ,  Yasuji Inobe ,  Seiji Nagakusa ,  Teiyuu Kimura

IPC分类号： G01N21/49 ,  A61B5/00 ,  A61B5/026 ,  A61B5/02

CPC分类号： A61B5/0059

摘要： An optical measuring device includes a sensor which emits light flashes toward a subject of detection with a light emitting element which is supplied with electric power from a rechargeable battery for a certain duration at certain intervals and receives reflected light from the subject with a light sensitive element. A subtractor subtracts a d.c. component from a sensed signal provided by the light sensitive element, thereby extracting a variation component. The subtractor has its output signal amplified with an amplifier, with the output thereof being A/D-converted with an A/D converter.

摘要翻译： 一种光学测量装置包括一个传感器，该传感器用一个发光元件发出闪光，该发光元件以一定间隔从一个可再充电电池供给电力一定持续时间，并用光敏元件接收来自被摄体的反射光 。 减法器减去d.c. 从感光元件提供的感测信号分量，从而提取变化分量。 减法器的输出信号用放大器放大，其输出由A / D转换器进行A / D转换。