公开(公告)号：US4345150A

公开(公告)日：1982-08-17

申请号：US148808

申请日：1980-05-12

申请人： Hisashi Tamura ,  Naozo Taniguchi ,  Hirotoshi Ishikawa

发明人： Hisashi Tamura ,  Naozo Taniguchi ,  Hirotoshi Ishikawa

IPC分类号： G01N21/3559 ,  G01N21/31 ,  G01N21/86 ,  G01J1/00

CPC分类号： G01N21/86 ,  G01N21/314

摘要： Method and apparatus for generating signals corresponding to the moisture content of paper by irradiating a sheet of paper with a near infrared ray, by detecting a beam having a coaction with the paper and by accomplishing the desired arithmetic operations with the use of the detected signals. According to the method and apparatus, at least two optical systems having different degrees of coactions with the paper are provided to respectively detect photometric optical signals and reference optical signals so that the signals corresponding to the moisture content may be generated with the use of the photometric and reference optical signals.

摘要翻译： 用于通过用与近红外线照射一张纸来产生与纸的水分含量相对应的信号的方法和装置，通过检测与该纸的共同作用的光束，并通过使用所检测的信号来完成所需的算术运算。 根据该方法和装置，提供与纸张具有不同程度的协同作用的至少两个光学系统以分别检测光度光信号和参考光信号，使得可以使用光度法产生对应于水分含量的信号 和参考光信号。