公开(公告)号：US3623816A

公开(公告)日：1971-11-30

申请号：US3623816D

申请日：1969-02-19

Applicant: MOTOROLA INC

Inventor： SLAVIK WILLIAM H

IPC: G01J3/51 ,  G01J3/46 ,  G01J1/42 ,  G01J3/48

CPC classification number: G01J3/51 ,  G01J3/513

Abstract: A portable meter for tracking any two colors of light emitted from a color cathode-ray tube at all brightness settings includes first and second light-dependent resistors connected in two arms of a bridge circuit in series with one another across a source of DC voltage with the other two arms of the bridge circuit consisting of equal resistors connected in parallel across the light-dependent resistors. The tap of a potentiometer connected between the light-dependent resistors and the tap of a potentiometer connected between the resistors to opposite sides of a DC meter through insulated gate field effect transistors. Light impinging upon each of the light-dependent resistors is passed through a color and a neutral density filter, permitting light of only one color to strike the associated resistor. Provision is made for adjustment of the bridge balance through the potentiometers for conditions of high light, low light and, through an additional arm of the bridge for darkness; so that the meter output is accurate over a wide range of brightness conditions.

公开(公告)号：US3606548A

公开(公告)日：1971-09-20

申请号：US3606548D

申请日：1968-10-10

Applicant: NAT RES DEV

Inventor： DYSON JAMES

IPC: G01N21/41 ,  G01N21/46 ,  G01J3/48

CPC classification number: G01N21/4133

Abstract: AN APPARATUS FOR MEASURING THE DISPERSION OF LIGHT DURING ITS PASSAGE THROUGH THE ATMOSPHERE IN WHICH A RAY OF LIGHT IS MODULATED BY A ROTATING CHOPPER. LIGHT OF DIFFERING WAVE-LENGTHS IN THE RAY IS CHOPPED AT DIFFERENT INSTANTS DUE TO THE LATERAL DISPLACEMENT OF IMAGES OF THE SOURCE OF THE RAY FORMED BY LIGHT OF DIFFERING WAVELENGTHS RESULTING FROM DISPERSION OF THE LIGHT BY THE ATMOSPHERE. THE PHASE DIFFERENCE OF THE MODULATIONS FOR TWO COLOURS, WHICH IS RELATED TO THE DISPERSION, IS MEASURED.

公开(公告)号：US3551058A

公开(公告)日：1970-12-29

申请号：US3551058D

申请日：1969-07-25

Applicant: EASTMAN KODAK CO

Inventor： DODDS KAY E ,  YEE YING S

IPC: G01J3/02 ,  G01J3/51 ,  G01J3/48

CPC classification number: G01J3/02 ,  G01J3/0218 ,  G01J3/51

公开(公告)号：US3533698A

公开(公告)日：1970-10-13

申请号：US3533698D

申请日：1967-09-11

Applicant: AMERICAN OPTICAL CORP

Inventor： BROWN MORDEN G ,  SHATZEL NORMAN W

IPC: G01N21/25 ,  G01J3/48 ,  G01N1/10 ,  G01N33/16

CPC classification number: G01N21/251

公开(公告)号：US3504981A

公开(公告)日：1970-04-07

申请号：US3504981D

申请日：1965-08-09

Applicant: HARRY H MALVIN

Inventor： MALVIN HARRY H

IPC: G01N21/25 ,  G01J3/48 ,  G01J3/34 ,  G01J3/46

CPC classification number: G01N21/253

公开(公告)号：US3482944A

公开(公告)日：1969-12-09

申请号：US3482944D

申请日：1967-05-02

Applicant: MINE SAFETY APPLIANCES CO

Inventor： PLANTZ CHARLES A ,  JENCA CECELIA C ,  MCCONNAUGHEY PAUL W

IPC: G05B21/02 ,  G01N31/08 ,  G01J3/48

CPC classification number: G05B21/02

公开(公告)号：US4326807A

公开(公告)日：1982-04-27

申请号：US189620

申请日：1980-09-22

Applicant: Michael Zochbauer

Inventor： Michael Zochbauer

IPC: G01N21/33 ,  G01J3/48

CPC classification number: G01N21/33

Abstract: An analyzer for measuring the combined NO and NO.sub.2 concentrations includes a hollow cathode lamp with nitrogen/oxygen filling emitting radiation which is alternatingly passed through two narrow-band interference filters, one having a transmission range clearly outside any NO absorption bands and its NO.sub.2 absorption equals the difference of the absorption coefficients for NO and NO.sub.2 in the transmission band of the other filter. These two beams pass through a measuring gas cell and are photoelectrically detected for further processing.

Abstract translation: 用于测量组合的NO和NO 2浓度的分析仪包括具有氮/氧填充发射辐射的空心阴极灯，其交替地穿过两个窄带干涉滤光器，一个具有清楚地在任何NO吸收带之外的透射范围，并且其NO 2吸收等于 其他滤波器的传输频带中NO和NO2的吸收系数的差异。 这两束光通过测量气体池，并进行光电检测以进一步处理。

公开(公告)号：US4167338A

公开(公告)日：1979-09-11

申请号：US831134

申请日：1977-09-07

Applicant: Thaddaus Kraus

Inventor： Thaddaus Kraus

IPC: G01J3/433 ,  G01J3/42 ,  G01J3/48

CPC classification number: G01J3/433

Abstract: A method for determining the quantity ratio of two components of a multi-substance mixture whose absorption bands are adjacent to each other and overlap comprises using an interference filter which is rotated in a uniform rotation about a first axis through the filter plane which forms with a perpendicular erected on the filter plane a fixed angle .beta. which is not equal to zero. The filter is rotatably arranged about a second axis through the filter plane and the method is characterized by adjusting the angle .alpha. which the axis of rotation forms with the ray in the range of .beta. is less than .alpha. so that a signal corresponding to the first derivative of the spectral intensity distribution of the radiation transmitted by the substance mixture just passes through zero and a quantity correlated with this angle is used as a measure of the quantity ratio. The radiation modulator for determining the quantity ratio includes a housing having an opening for the passage of the light ray therethrough and a filter in the housing in the path of the beam. The filter is mounted for rotation about a first axis comprising the axis of the filter and is mounted for pivoting about a second axis also going through the filter. The first axis is such that the area normal thereof forms with the first axis a fixed angle .beta. and the first axis is rotatable about the second axis and an angle .alpha. is formed between the first axis in the ray direction which may be read and indicated and the filter is adjustable to vary the angle.

Abstract translation: 一种用于确定其吸收带彼此相邻并且重叠的多物质混合物的两种组分的量比的方法包括使用干涉滤光器，所述干涉滤光器以围绕第一轴的均匀旋转通过过滤平面旋转，所述过滤平面与 垂直竖立在过滤平面上，固定角度β不等于零。 过滤器绕第二轴线可旋转地布置通过过滤器平面，并且该方法的特征在于调整旋转轴线形成的角度α，β的范围内的光线小于α，使得对应于一阶导数的信号 由物质混合物传播的辐射的光谱强度分布刚好通过零，并且与该角度相关的量被用作量比的量度。 用于确定数量比率的辐射调制器包括具有用于光线通过的开口的壳体和在梁的路径中的壳体中的过滤器。 安装过滤器以围绕包括过滤器的轴线的第一轴线旋转，并且安装成围绕也穿过过滤器的第二轴线枢转。 第一轴线使得其第一轴线与第一轴线形成固定角度β并且第一轴线可围绕第二轴线旋转并且在可以被读取和指示的射线方向上的第一轴线之间形成角度α，并且 过滤器可调，以改变角度。

公开(公告)号：US4160601A

公开(公告)日：1979-07-10

申请号：US880727

申请日：1978-02-24

Applicant: Robert A. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Frosch ,  Jacqueline M. Jacobs

Inventor： Robert A. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Frosch ,  Jacqueline M. Jacobs

IPC: G01N15/14 ,  G01N21/32 ,  G01J3/48

CPC classification number: G01N15/1468

Abstract: A method for determining the characteristics and amount of microscopic contaminants lodged on a photographed surface. An image enhanced full-color photographic negative and print are taken of the contaminated surface. Three black-and-white prints are developed subsequently from red, green and blue separation filter overlays of the color negative. Both the color and three monochromatic prints are then scanned to extract in digital form a profile of any contaminant possibly existing on the surface. The resulting profiles are electronically analyzed and compared with data already stored relating to known contaminants.

Abstract translation: 用于确定拍摄表面上的微观污染物的特征和量的方法。 拍摄受污染表面的图像增强型全彩照相底片和印刷品。 随后从彩色负片的红色，绿色和蓝色分离滤光片叠层开发出三张黑白相片。 然后扫描颜色和三个单色打印件，以数字形式提取可能存在于表面上的任何污染物的轮廓。 所得到的分布图被电子分析，并与已经存储的与已知污染物相关的数据进行比较。

公开(公告)号：US4141653A

公开(公告)日：1979-02-27

申请号：US766136

申请日：1977-02-07

Applicant: Frederick A. Arnold

Inventor： Frederick A. Arnold

IPC: G01J3/51 ,  G01J3/48 ,  G01J3/10 ,  G01J3/46 ,  G02B5/22

CPC classification number: G01J3/51 ,  G01J3/463 ,  G01J3/501

Abstract: The device is housed in an enclosure impervious to light of a selected frequency spectrum. The housing contains a light source of the same frequency spectrum and a pair of translatable filter holders. Each of the filter holders contain different chromic absorption filters positioned in a side-by-side relationship in the direction of translation. The chromic absorption filters are arranged with a color filter on one end of the holder and its color filter complement on the other end. A second embodiment contains an achromic or neutral filter positioned between the complementary chromic filters. The filters of each holder have vertical alignment when one is superposed over the other. A mask is provided between the filter holding means for allowing light from the source to pass through an area equal to approximately the width of one chromic filter. Thus, this light is then directed toward a color positive for correct light balancing. A viewing port for operator viewing covered with etched glass or the like receives reflected light from the color positive through a variable area aperture. A scale is provided to reference the position of each filter slide when translated for correct color balancing.

Abstract translation: 该装置容纳在不受透过选定频谱光的外壳内。 壳体包含相同频谱的光源和一对可平移的过滤器支架。 每个过滤器保持器包含不同的铬吸收过滤器，它们在平移方向上处于并排关系。 铬吸收滤光器在保持器的一端布置有滤色器，并且在另一端上配有滤色器。 第二实施例包含位于互补铬过滤器之间的变色或中性过滤器。 当一个叠放在另一个上时，每个保持器的过滤器具有垂直对准。 在过滤器保持装置之间设置一个掩模，用于允许来自源的光通过等于一个铬过滤器的宽度的区域。 因此，这个光然后被引向一个正面的颜色以获得正确的光平衡。 用蚀刻玻璃等覆盖的操作者观察的观察端口通过可变区域孔从颜色正面接收反射光。 提供比例以参考每个过滤器滑块的位置，以便翻译以获得正确的颜色平衡。