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1. 发明专利

JP2003014659A Moisture measuring instrument 审中-公开
标题翻译：水分测量仪器
公开(公告)号：JP2003014659A
公开(公告)日：2003-01-15
申请号：JP2001195624
申请日：2001-06-28
申请人： Earthnics Corp , アースニクス株式会社
发明人： UCHIDA HIROYUKI , MIYASHITA KYOICHI , OGAWA JUNICHI
IPC分类号： G01N23/12 , G01N22/04
摘要： PROBLEM TO BE SOLVED: To solve such a problem that, since a space is present between the surface of a sample and means for transmitting and receiving microwaves in a conventional moisture measuring instrument so as to hold a predetermined distance, standing waves are generated between them to give trouble in the measurement of moisture content according to circumstances while, even if moisture content is ready to be measured in such a state that the sample is allowed to densely flow through a pipe, a bridge (clogging of the sample) bridging the inner wall surface of the pipe to deteriorate the flow of the sample.
SOLUTION: A transmission means 11, a reception means 12, a radiation source 21 and a measuring means 22 are arranged to both wing parts 31 and 32 of a trough-like member 40 having an almost U-shaped cross section to measure the moisture content of the sample flowing to the trough-like member 40.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题为了解决这样一个问题，即由于在常规的水分测量仪器之间的样品表面和用于发送和接收微波的装置之间存在空间以保持预定距离，所以在它们之间产生驻波在根据情况测量水分含量方面遇到困难，即使在允许样品密集地流过管道的状态下准备测量水分含量，桥接（内部）的桥（桥塞）管道的壁表面使样品的流动变差。解决方案：具有大致U形横截面的槽状构件40的两个翼部31,32配置有发送单元11，接收单元12，辐射源21及测量单元22，以测定水分含量的样品流到槽状构件40。

2. 发明专利

JPH05107170A GAMMA RAY DENSITOMETER 失效
公开(公告)号：JPH05107170A
公开(公告)日：1993-04-27
申请号：JP29846291
申请日：1991-10-16
申请人： EARTHNICS CORP
发明人： MIYASHITA KYOICHI , OGAWA JUNICHI
IPC分类号： G01N9/24
摘要： PURPOSE:To obtain a gamma ray densitometer capable of automatically correcting the measurement error accompanied by the variation of environmental radiation level varying with the place of use. CONSTITUTION:In the initial calibration, the gamma detection intensity Nv (count rate) in vacant state of a pipe 3 where a gamma source 1 is placed and a measured material is sent, is measured and the device constant mu, and N1 are stored in a memory. When a gamma densitometer is placed at a used position and the power switch is turned on, the count rate Nv' in the vacant pipe 3 is first measured and stored in the memory, and then using the measured value N' for the flowing measured material in the pipe 3 and resulting equation, rho=1-(1/mu)ln[{N'-(Nv'-Nv)}/N1], a calculation is executed to obtain the density rho of the measured material.

3. 发明专利

JPH0447253A MEASURING APPARATUS FOR DENSITY AND MOISTURE 失效
公开(公告)号：JPH0447253A
公开(公告)日：1992-02-17
申请号：JP15636390
申请日：1990-06-13
申请人： EARTHNICS CORP
发明人： MIYASHITA KYOICHI , OGAWA JUNICHI
IPC分类号： G01N9/24 , G01N9/36 , G01N23/02
摘要： PURPOSE:To measure density and the amount of moisture highly efficiently and stably by using a phoswich-type detector which is constructed by combining an NaI scintillator and a plastic scintillator optically with one photomultiplier tube. CONSTITUTION:A gamma-ray and a fast neutron-ray radiated from a radiation source 1 are transmitted through a substance 20 to be measured and are detected by a plastic scintillator 15, while the gamma-ray is detected also by an NaI scintillator 4. A pulse- shape discriminating circuit 16 separates a detection signal by the scintillator 15 from a detection signal by the scintillator 4 by utilizing a difference in a pulse rise time between the two signals. Next, the counting rate Np per unit time of the separated detection signal from the scintillator 15 and the counting rate Nc of the detection signal from the scintillator 4 are counted. Then, CPU 19 distributes the counting rate Np to a gamme-ray contribution part Ngamma and a fast neutron-ray contribution part Nn on the basis of a distribution ratio determined by the construction of a phoswich-type detector 3 and the radiation source 1m and calculates the amount of moisture of the substance 20 to be measured on the basis of the counting rate Nn of the fast neutron-ray and the density on the basis of the counting rate Ngamma of the gamma-ray.

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