公开(公告)号：US5166964A

公开(公告)日：1992-11-24

申请号：US873602

申请日：1992-04-21

Applicant: Kenichi Hasegawa ,  Kuniyoshi Watanabe ,  Setsuro Kimura ,  Jun Furukawa ,  Kenji Akifuji

Inventor： Kenichi Hasegawa ,  Kuniyoshi Watanabe ,  Setsuro Kimura ,  Jun Furukawa ,  Kenji Akifuji

IPC: G01N23/08 ,  G01Q90/00

CPC classification number: G01N23/08

Abstract: A distance between a radiation source and a detector is first set to a first distance and the number of pulses of a .gamma.-ray is detected. Then, the distance between the radiation source and the detector is set to a second distance different from the first distance and the number of .gamma.-ray pulses is detected. A density .rho. of a sample is finally calculated on the basis of a ratio of the two detection pulse numbers which were detected. The radiation source is set on the surface of the sample or in the sample. The sample detector is set on the sample surface. Fundamentally, one radiation source and two detectors are used. In the case of using one radiation source and one detector, either one of them is moved and the number of pulses is detected twice.

Abstract translation: 首先将辐射源和检测器之间的距离设置为第一距离，并且检测伽马射线的脉冲数。 然后，将辐射源和检测器之间的距离设定为与第一距离不同的第二距离，并且检测伽马射线脉冲的数量。 基于检测到的两个检测脉冲数的比例，最终计算样品的密度rho。 辐射源设置在样品表面或样品中。 样品检测器设置在样品表面上。 基本上，使用一个辐射源和两个检测器。 在使用一个辐射源和一个检测器的情况下，它们中的任一个被移动并且检测到两个脉冲数。

公开(公告)号：US4885759A

公开(公告)日：1989-12-05

申请号：US124558

申请日：1987-11-24

Applicant: Toshimasa Tomoda ,  Shinji Badono ,  Masaki Komaru

Inventor： Toshimasa Tomoda ,  Shinji Badono ,  Masaki Komaru

IPC: G01N23/08 ,  G01N23/12

CPC classification number: G01N23/12 ,  G01N23/08

Abstract: A measuring apparatus for measuring a physical property of a substance using radiation has a source of radiation for irradiating the substance, a radiation detector which is disposed on the opposite side of the substance from the radiation source, a mask for allowing radiaton to enter the radiation detector only along n prescribed pathways, and a signal processing and calculating device for calculating the physical property of the substance based on the radiation which is incident upon the radiation detector. The mask has n different mask patterns each comprising a plurality of pattern elements which allow the passage of radiation and which can be positioned between the substance and the radiation detector in alignment with the radiation pathways.

Abstract translation: 用于使用辐射测量物质的物理性质的测量装置具有用于照射物质的辐射源，设置在与辐射源相反的物质的相反侧的辐射检测器，用于允许辐射进入辐射的掩模 检测器仅沿着n个规定的路径，以及信号处理和计算装置，用于基于入射在辐射检测器上的辐射来计算物质的物理性质。 掩模具有n个不同的掩模图案，每个掩模图案包括允许辐射通过的多个图案元件，并且其可以位于物质和辐射检测器之间，与辐射路径对准。

公开(公告)号：US4614870A

公开(公告)日：1986-09-30

申请号：US558378

申请日：1983-12-05

Applicant: Roderick G. Morrison

Inventor： Roderick G. Morrison

IPC: G01N9/24 ,  G01N23/08

CPC classification number: G01N23/08 ,  G01N9/24

Abstract: A miniature, low power consuming, density gage utilizing extremely small artificial and naturally found radioactive sources. The gage employs a unique method of compensating for the gamma attenuation coefficient in different materials such as soils to provide a very simple but accurate and effective moisture gage. A single source emits radiation beams, one through a control sample of the material and at least one beam through a zone of the material where moisture content is to be determined. The apparatus may optionally be employed to control a crop irrigation system to maintain moisture within the comfort zone of the plants growing in the soil. The invention also may be used for measuring moisture content in several discrete zones of the material.

Abstract translation: 采用极小的人造和天然发现的放射源的微型低功耗密度计。 量规采用了一种独特的方法来补偿不同材料（如土壤）中的伽马衰减系数，以提供非常简单但准确和有效的湿度计。 单个源发射辐射束，一个通过材料的对照样品和至少一个光束穿过要确定含水量的材料区域。 该装置可以可选地用于控制作物灌溉系统以将水分保持在在土壤中生长的植物的舒适区域内。 本发明还可以用于测量材料的几个离散区域中的水分含量。

公开(公告)号：US3932757A

公开(公告)日：1976-01-13

申请号：US462103

申请日：1974-04-18

Applicant: Godfrey Newbold Hounsfield

Inventor： Godfrey Newbold Hounsfield

IPC: A61B6/02 ,  G01N23/08 ,  G01T1/20

CPC classification number: A61B6/025 ,  A61B6/482 ,  G01N23/08

Abstract: Apparatus is disclosed for providing a visual representation of the absorption or transmission coefficients of the elements of a two dimensional matrix of elements notionally defined in a cross-sectional plane through a body. The representation is in the form of an analogue display comprising superimposed lines of information scanned on the surface of a suitable screen, the brightness of each line being indicative of the absorption suffered by penetrating radiation on traversing a respective path through said plane of the body. The orientation of each scanned line depends on the orientation of the respective path with respect to the body.

Abstract translation: 公开了用于提供通过身体在横截面中通常定义的元件的二维矩阵元素的吸收或透射系数的视觉表示的装置。 该表示是模拟显示器的形式，包括在合适的屏幕的表面上扫描的叠加的信息线，每行的亮度表示穿过穿过穿过身体的平面的相应路径上的穿透辐射所遭受的吸收。 每个扫描线的取向取决于相对于身体的相应路径的取向。

公开(公告)号：US3843887A

公开(公告)日：1974-10-22

申请号：US22926672

申请日：1972-05-22

Applicant: MORRISON R

Inventor： MORRISON R

IPC: G01N23/08 ,  G01T1/16

CPC classification number: G01N23/08

Abstract: An isotopic source emitting highly energetic gamma rays transmitted through attenuating materials to a given point at which energy discriminating detectors are located and an electronic circuit connected to the detectors to establish a continuously calibrated density measurement from which the water content in a snow field is determined.

Abstract translation: 将通过衰减材料传输的能量高的γ射线发射到能量识别检测器所在的给定点的同位素源和连接到检测器的电子电路，以建立连续校准的密度测量值，从而确定雪域中的含水量。

公开(公告)号：US3711707A

公开(公告)日：1973-01-16

申请号：US3711707D

申请日：1970-11-13

Applicant: GCA CORP

Inventor： LILIENFELD P ,  DOYLE A

IPC: G01N15/06 ,  G01N23/08 ,  G01N21/26

CPC classification number: G01N15/06 ,  G01N23/08

Abstract: In the monitoring apparatus disclosed herein, a relatively continuous monitoring of aerosol particle concentration is facilitated by concentrating the aerosol particles by impaction and then, in a structure integrated with the impaction apparatus itself, measuring the mass of the collected aerosol particles by beta radiation absorption.

Abstract translation: 在本文公开的监测装置中，通过冲击气溶胶颗粒浓缩然后在与冲击装置本身一体化的结构中通过β辐射吸收来测量所收集的气溶胶颗粒的质量来促进气溶胶颗粒浓度的相对连续的监测。

公开(公告)号：US3531643A

公开(公告)日：1970-09-29

申请号：US3531643D

申请日：1967-10-26

Applicant: FRANCE ETAT

Inventor： BRETONNIERE SERGE ,  CHEVRIER JEAN-PIERRE ,  GABILLY YVES

IPC: G01N23/08 ,  G01T1/16

CPC classification number: G01N23/08

公开(公告)号：US3529162A

公开(公告)日：1970-09-15

申请号：US3529162D

申请日：1967-05-02

Applicant: INDUSTRIAL NUCLEONICS CORP

Inventor： TROUTMAN PAUL H

IPC: G01N23/08 ,  G06G7/28 ,  G01T1/16

CPC classification number: G06G7/28 ,  G01N23/08

公开(公告)号：US3171962A

公开(公告)日：1965-03-02

申请号：US17256162

申请日：1962-02-12

Applicant: HONEYWELL INC

Inventor： BALLINGER JOHN G

IPC: G01L21/30 ,  G01N23/08 ,  G01N23/201

CPC classification number: G01L21/30 ,  G01N23/08 ,  G01N23/201

公开(公告)号：US2978583A

公开(公告)日：1961-04-04

申请号：US63908357

申请日：1957-02-08

Applicant: AMERICAN MACH & FOUNDRY

Inventor： KENNETH FEARNSIDE

IPC: G01N23/08 ,  G01T1/40 ,  H01J43/30

CPC classification number: H01J43/30 ,  G01N23/08 ,  G01T1/40