公开(公告)号：US5409532A

公开(公告)日：1995-04-25

申请号：US7167

申请日：1993-01-21

Applicant: Stephan Astegger ,  Dieter Eichinger ,  Heinz Falk ,  Gunter Teubl

Inventor： Stephan Astegger ,  Dieter Eichinger ,  Heinz Falk ,  Gunter Teubl

IPC: C07C211/63 ,  C07C291/04 ,  C08B1/00 ,  D01C1/00 ,  G01J3/36 ,  G01N21/71 ,  C08L1/00 ,  C08L1/02

CPC classification number: C07C291/04

Abstract: Amine-oxides of the general formula: ##STR1## wherein R.sub.1 and R.sub.2 are alkyl groups with 1 to 4 C-atoms, R.sub.3 is hydrogen, a hydroxyl group or an alkoxy group with 1 to 4 C-atoms and m and n are whole numbers which fulfil the conditions 1.ltoreq.m.ltoreq.8 and 0.ltoreq.n.ltoreq.4 respectively, with the proviso that n is not 0 if R.sub.3 is a hydroxyl group or an alkoxy group, can be used with advantage for the preparation of mouldable or spinnable cellulose solutions which have a reduced tendency to crystallise.

Abstract translation: 具有以下通式的胺氧化物：其中R 1和R 2是具有1至4个C原子的烷基，R 3是氢，羟基或具有1至4个C原子的烷氧基，m和 n是分别满足条件1

公开(公告)号：US5371358A

公开(公告)日：1994-12-06

申请号：US134367

申请日：1993-10-08

Applicant: Sheng-Huei Chang ,  Mark J. Westfield

Inventor： Sheng-Huei Chang ,  Mark J. Westfield

IPC: G01C11/02 ,  G01J3/06 ,  G01J3/18 ,  G01J3/28 ,  G01J3/36 ,  G01V8/02 ,  G01J3/50

CPC classification number: G01J3/2803 ,  G01C11/025 ,  G01J3/06 ,  G01J3/28 ,  G01J3/2823 ,  G01J3/36 ,  G01V8/02 ,  G01J2003/2866 ,  G01J3/021 ,  G01J3/18

Abstract: A multichannel imaging spectrometer for airborne geological, geophysical and environmental surveys in a moving vehicle. An optical scanner employs a rotating polygon allowing reduced scan optics with increased data acquisition efficiency. Multiple spectrometers integrally registered allow channelization of the received signal to optimize noise performance in the range from ultraviolet through infrared. Output data is in a form for recording and real time display. A staring mode configuration provides enhanced sensitivity by using a two-dimensional detector array and adjustable mirror orientation. A scanning mode embodiment employs a two-dimensional detector array with time delay integration and three-dimensional storage of temporal spatial data and spectral wavelength and intensity. Thus, all channels are acquired simultaneously, resulting in perfect band-to-band registration with continuous spectral curves over the field of view. On-board real-time absolute radiometric calibration is provided by an integral reflective white plate and radiometrically and spectrally calibrated light source illuminating a column of detectors independent of illumination by the target during the scan cycle. Dark current measurement is achieved in both the scan and stare modes by an auxiliary detector column.

Abstract translation: 用于移动车辆中的空中地质，地球物理和环境调查的多通道成像光谱仪。 光学扫描器采用旋转多边形，允许减少的扫描光学器件具有更高的数据采集效率。 整体记录的多个光谱仪允许接收信号的通道化，以在紫外到红外范围内优化噪声性能。 输出数据是用于记录和实时显示的形式。 凝视模式配置通过使用二维检测器阵列和可调整的镜子方向提供增强的灵敏度。 扫描模式实施例采用具有时间延迟积分和时间空间数据和光谱波长和强度的三维存储的二维检测器阵列。 因此，所有通道都被同时获取，从而在视野范围内实现了带有连续光谱曲线的完美的带对带配准。 板上实时绝对辐射校准由整体反射白板和放射性和光谱校准光源提供，在扫描周期内照射一列独立于目标的检测器的检测器。 通过辅助检测器列在扫描和凝视模式下实现暗电流测量。

公开(公告)号：US5251121A

公开(公告)日：1993-10-05

申请号：US599888

申请日：1990-10-18

Applicant: Daniel W. Knodle ,  Walter A. Cooke ,  Paul K. Graham

Inventor： Daniel W. Knodle ,  Walter A. Cooke ,  Paul K. Graham

IPC: G01N21/61 ,  G01J3/10 ,  G01J3/36 ,  G01N21/35 ,  H02M7/537

CPC classification number: G01N21/3504 ,  G01J3/10 ,  G01J3/36

Abstract: Power supplies for generating a stream of electrical pulses in which successive pulses have opposite polarities. The pulses are formed and outputted from pulse generating circuitry which has two complementary pairs of MOSFETs arranged in an H-bridge configuration. Other major components of the power supply are voltage regulators for supplying positive and negative operating pulses with selected, precisely controlled voltages to the driver and watchdog circuits for disenabling the pulse outputting circuitry if: the frequency of the operating pulses deviate from a selected range, the widths of the operating pulses exceed a selected maximum, extraneous pulses are present, or the voltage of the operating pulses falls below or exceeds selected maximums. In one important application, the power supply is employed to drive the emitter of an infrared radiation source.

Abstract translation: 用于产生电脉冲流的电源，其中连续脉冲具有相反的极性。 脉冲形成并从脉冲发生电路输出，该脉冲发生电路具有以H桥配置布置的两对互补的MOSFET对。 电源的其他主要部件是电压调节器，用于向驱动器和看门狗电路提供选定的精确控制的电压的正和负操作脉冲，用于在脉冲输出电路中断开，如果：操作脉冲的频率偏离所选择的范围， 操作脉冲的宽度超过所选择的最大值，存在外部脉冲，或者操作脉冲的电压低于或超过选定的最大值。 在一个重要的应用中，使用电源来驱动红外辐射源的发射器​​。

公开(公告)号：US5159404A

公开(公告)日：1992-10-27

申请号：US801451

申请日：1991-12-02

Applicant: Reinhold Bittner

Inventor： Reinhold Bittner

IPC: G01J3/20 ,  G01J3/28 ,  G01J3/36

CPC classification number: G01J3/20 ,  G01J3/0259 ,  G01J3/2803

Abstract: A transparent carrier body of a diode-array spectrometer having a concave grating is configured as a biconvex lens and the diode array is mounted at a distance (d) to a second convex surface lying opposite the concave grating. Preferably, the radii of curvature (r.sub.1, r.sub.2) differ from each other only slightly. A simplified manufacture and adjustment is possible with good optical correction.

Abstract translation: 具有凹面光栅的二极管阵列光谱仪的透明载体构造为双凸透镜，并且二极管阵列以与凹光栅相对的第二凸表面的距离（d）安装。 优选地，曲率半径（r1，r2）仅稍微不同。 可以通过良好的光学校正进行简化的制造和调整。

公开(公告)号：US5128549A

公开(公告)日：1992-07-07

申请号：US502359

申请日：1990-03-30

Applicant: Wilbur I. Kaye

Inventor： Wilbur I. Kaye

IPC: G01J3/36 ,  G01J3/28

CPC classification number: G01J3/2803 ,  G01J3/28 ,  G01N2201/064

Abstract: A method of measuring and compensating stray light in absorbance analysis that use a multiple element array detector wherein one or more of the elements of the diode array are utilized to detect stray radiation in the absence of primary radiation including higher order diffracted radiation. In one aspect, the atmosphere is used to filter all primary radiation below a particular wavelength so that one or more array elements corresponding to detection below such wavelength can be dedicated to the detection of only stray radiation. Detection of higher order diffractions can be prevented by dividing the total spectrum into intervals and detecting these intervals in sequence. In another aspect, a diode array is designed to include additional elements along one side of the array outside the exposure of the primary radiation for the sole purpose of detecting stray radiation.

公开(公告)号：US5017785A

公开(公告)日：1991-05-21

申请号：US447188

申请日：1989-12-07

Applicant: Jaakko Rasanen

Inventor： Jaakko Rasanen

IPC: G01J3/18 ,  G01J3/20 ,  G01J3/36 ,  G01J3/427 ,  G01N21/35 ,  G01N33/04

CPC classification number: G01N21/35 ,  G01J3/20 ,  G01J3/427 ,  G01N33/04 ,  G01J3/18 ,  G01J3/36 ,  G01N21/3577

Abstract: An IR-spectrometric analyzing procedure, the measuring absorbance and reference absorbance being detected simultaneously from an IR light beam conducted to pass through the sample and diffracted to a spectrum. An IR spectrometer comprising a light source (1), a sample cuvette (5), a diffraction member (6), detectors (7) and a calculating means (9) for determining the content values of the sample corresponding to the measuring absorbance, the detectors (7) having been arranged to detect the measuring absorbance and the reference absorbance simultaneously from the beam that has passed through the sample and been diffracted to a spectrum.

公开(公告)号：US4993834A

公开(公告)日：1991-02-19

申请号：US411820

申请日：1989-09-25

Applicant: Christoph Carlhoff ,  Claus-Jurgen Lorenzen ,  Klaus-Peter Nick

Inventor： Christoph Carlhoff ,  Claus-Jurgen Lorenzen ,  Klaus-Peter Nick

IPC: G01J1/44 ,  G01J3/04 ,  G01J3/12 ,  G01J3/20 ,  G01J3/28 ,  G01J3/36

CPC classification number: G01J3/20 ,  G01J3/2803 ,  G01J2001/446 ,  G01J2001/448 ,  G01J2003/045 ,  G01J2003/1295

Abstract: A polychromator in a Paschen-Runge mounting in which intensity measurements are made by means of a row of photodiodes. The spectral intensity distribution of at least two spectral regions on the Rowland circle is transmitted to the row of photodiodes by image conductors and is measured there.

Abstract translation: 在Paschen-Runge安装中的多色分光仪，其中通过一行光电二极管进行强度测量。 Rowland圆上至少两个光谱区域的光谱强度分布通过图像导体传输到光电二极管行，并在那里进行测量。

公开(公告)号：US4958928A

公开(公告)日：1990-09-25

申请号：US338265

申请日：1989-04-14

Applicant: Hubert Kuderer

Inventor： Hubert Kuderer

IPC: G01J3/02 ,  G01J1/44 ,  G01J3/06 ,  G01J3/28 ,  G01J3/36 ,  G01J3/18 ,  G01J3/42

CPC classification number: G01J3/2803 ,  G01J1/44

Abstract: A photodiode array spectrometer comprises an arry (40) of photosensitive elements for receiving a beam of light. Light impinging on a photodiode causes discharging of the associated capacitors. The capacitors are recharged periodically by a charge amplifier via a video line (30) by closing transfer switches (SW1, . . . , SW 768) associated with the photosensitive elements, repectively. The switches are group together in several segments which are independently addressable such that during a recharge scan only selected groups of photodioldes are recharged. The information which segments are to be sctivated, i.e. which groups of switches are to be closed, is contained in a segment control block (43). An integration control block (46) additionally permits to adjust the time intervals between successive recharge cycles separately for each selected segment. The invention permits to select regions of interest of the photodiode array for a specific application, whereas other regions are ignored for that application, leading to a reduced data rate with high spectral resolution and sensitivity.

公开(公告)号：US4835393A

公开(公告)日：1989-05-30

申请号：US57945

申请日：1987-06-04

Applicant: Lutz Krauss

Inventor： Lutz Krauss

IPC: G01J3/36 ,  G01N21/31 ,  G01N21/33

CPC classification number: G01N21/33 ,  G01J3/36 ,  G01N21/314

Abstract: To improve the accuracy and reduce the sensitivity of interference absorptions in a method for determining the concentration of formaldehyde in a medium by an absorption measurement in the range of at least one characteristic absorption band of the formaldehyde and, in the appropriate instance, subtraction of an interference absorption which is determined by at least one absorption measurement in a wavelength range outside of the characteristic absorption band of the formaldehyde, it is proposed that a discharge be maintained at a current strength of several milliamperes in a hollow-cathode lamp filled with molecular nitrogen at a pressure of less than 2 millibar to generate the radiation for the absorption measurement, that the absorption measurement be performed on at least two different characteristic absorption bands of the formaldehyde with absorption coefficients at a previously known ratio to one another which lie in the range of emissions of the gas discharge in the hollow-cathode lamp, that the ratio of the actual absorptions measured on the characteristic absorption bands be formed and compared with the previously known ratio, that in the event of non-coincidence with the previously known ratio, the interference absorption be determined and subtracted from the measured absorptions, and that in the event of coincidence with the previously known ratio, the concentration of the formaldehyde be determined from the measured absorption values or, if interference absorptions are to be subtracted, from the absorption values which have been reduced by the interference absorption.

Abstract translation: 在通过在甲醛的至少一个特征吸收带的范围内的吸收测量确定介质中甲醛浓度的方法中，提高精度并降低干扰吸收的灵敏度，并且在适当的情况下减去 通过在甲醛的特征吸收带外的波长范围内的至少一个吸收测量确定的干涉吸收，建议在填充有分子氮的中空阴极灯中将放电保持在几毫安的电流强度 在小于2毫巴的压力下产生用于吸收测量的辐射，吸收测量在甲醛的至少两个不同的特征吸收带上进行，其吸收系数以先前已知的彼此的比例位于该范围内 在中空气体中排放气体 形成在特征吸收带上测量的实际吸收比与先前已知的比例，在与先前已知的比例不一致的情况下，确定干涉吸收并从测量的相减中减去干涉吸收 并且在与先前已知的比例一致的情况下，根据测量的吸收值确定甲醛的浓度，或者如果要减去干涉吸收的吸收值，则由吸收值减小。

公开(公告)号：US4758085A

公开(公告)日：1988-07-19

申请号：US086076

申请日：1987-06-09

Applicant: Michel Lequime ,  Jocelyn Millet ,  Jean Debrie

Inventor： Michel Lequime ,  Jocelyn Millet ,  Jean Debrie

IPC: G01J3/02 ,  G01J3/28 ,  G01J3/46 ,  G01N21/25 ,  G01J3/42 ,  G01J3/36

CPC classification number: G01J3/2803 ,  G01J3/02 ,  G01J3/0221 ,  G01J3/0256 ,  G01J3/524 ,  G01N21/255 ,  G01J2003/2809 ,  G01J2003/2866 ,  G01N2201/08 ,  G01N2201/082 ,  G01N2201/127

Abstract: The invention relates to a spectrometer/colorimeter apparatus comprising an opto-electronic card (12) with the essential components of the apparatus mounted thereon, and in particular a spectrometer (14) having an inlet slot (16) and a strip (18) of photodetectors (20), and two optical fiber measurement paths (28) and two calibration paths (26), with the ends of the optical fibers being superposed in the inlet slot (16) of the spectrometer. The apparatus is particularly intended for use in an industrial environment.

Abstract translation: PCT No.PCT / FR86 / 00351 Sec。 371日期：1987年6月9日 102（e）1987年6月9日PCT PCT日期：1986年10月14日PCT公布。 第WO87 / 02454号公报 日期：1987年4月23日本发明涉及一种光谱仪/色度计装置，其包括安装有其上的装置的基本部件的光电卡（12），特别是具有入口槽（16）的光谱仪（14） 以及光电探测器（20）的条带（18）和两个光纤测量路径（28）和两个校准路径（26），光纤端部叠加在光谱仪的入口槽（16）中。 该装置特别用于工业环境中。