公开(公告)号：US4848904A

公开(公告)日：1989-07-18

申请号：US156285

申请日：1988-02-16

申请人： Edwin R. Sapp ,  Eric K. Kinast

发明人： Edwin R. Sapp ,  Eric K. Kinast

IPC分类号： G01J3/18 ,  G01J1/16 ,  G01J1/42 ,  G01J1/44 ,  G01J3/28 ,  G01J3/42 ,  G01N21/27 ,  G01N21/77 ,  G01N30/74

CPC分类号： G01N21/27 ,  G01J3/42 ,  G01J2001/161 ,  G01J2001/1673 ,  G01J3/2803 ,  G01N2201/1232 ,  G01N2201/126 ,  G01N30/74

摘要： The present invention relates to an improved dual beam multichannel spectrophotomer employing a simple and novel optical system in combination with photodiode arrays and a unique logrithmic data converter to convert light signals to absorbance. In particular, the optical system utilizes optical elements in a novel arrangement to direct a pair of equivalent sample and reference beams in an essentially parallel formation respectively through a sample and reference cell and to focus and direct the emergent sample and reference beams to a single flat horizontally ruled grating which disperses each of the sample and reference beams respectively onto a pair of vertically disposed photodiode arrays whereby the light signals are converted into absorbance units (AU) by an unique logarithmic data converter. The spectrophotometer is highly accurate, has very low drift, less than 2.times.10.sup.-4 AU/.degree.C., and very low noise, less than .+-.2.times.10.sup.-5 AU. The dual beam multichannel spectrophotomer is particularly suitable for use in high pressure liquid chromatography to record the absorbance spectrum of the samples as they are being eluted from the chromatographic column.

公开(公告)号：US4935875A

公开(公告)日：1990-06-19

申请号：US312353

申请日：1989-02-13

申请人： Ramesh M. Shah ,  Thomas H. Ridgway

发明人： Ramesh M. Shah ,  Thomas H. Ridgway

IPC分类号： G01J3/42 ,  G01N21/25 ,  G01N33/49 ,  G01N35/00

CPC分类号： G01N35/00732 ,  G01N21/253 ,  G01N33/4905 ,  G01J3/42 ,  G01N2035/00752 ,  G01N2201/0231 ,  G01N2201/1232 ,  G01N2201/1235 ,  G01N2201/126 ,  G01N2201/127 ,  G01N33/49

摘要： An automatic chemical analyzer for the analysis of physiological samples. A scanning monochromatic spectrophotometer may be used to determine the absorbance of the sample under control of a central processing unit. Outputs from one of several ion selective electrodes may also be selected by the system. The information obtained from the measurements is stored in memory or ouputted to output devices. Information about the test parameters may be read from an optical bar code associated with the test kit for the particular chemical analysis.

摘要翻译： 一种用于生理样品分析的自动化学分析仪。 扫描单色分光光度计可用于在中央处理单元的控制下确定样品的吸光度。 来自几个离子选择性电极之一的输出也可以由系统选择。 从测量获得的信息存储在存储器中或输出到输出设备。 关于测试参数的信息可以从与特定化学分析的测试试剂盒相关联的光学条形码读取。

公开(公告)号：US4300203A

公开(公告)日：1981-11-10

申请号：US86387

申请日：1979-10-19

申请人： James R. Brown

发明人： James R. Brown

IPC分类号： G01N21/27 ,  G06F17/17 ,  G06F7/02

CPC分类号： G06F17/17 ,  G01N21/27 ,  G01N2201/1232

摘要： A method and means for operating log converter circuits in which the method comprises the steps of sequentially conducting to the input of the log converter circuit signals representing a known transmittance (T) of 100% T, 10% T, 1% T, and 0.1% T, these signals covering the range of operation of the log converter circuit, storing the outputs of the circuit as signals representing an absorbance (A) of 0A, 1A, 2A, and 3A, respectively, conducting to the input of the log converter circuit an unknown signal, and utilizing a microcomputer to perform a linear interpolation of the output of the circuit with the unknown signal applied thereto using the previously stored 0A, 1A, 2A, and 3A signals.

摘要翻译： 一种用于操作对数转换器电路的方法和装置，其中所述方法包括以下步骤：顺序地向对数转换器电路的输入传送表示100％T，10％T，1％T和0.1的已知透射率（T）的信号 ％T，这些信号覆盖对数转换器电路的操作范围，将电路的输出分别作为代表对数转换器输入的0A，1A，2A和3A的吸光度（A）的信号 电路未知信号，并利用微型计算机对使用先前存储的0A，1A，2A和3A信号的未知信号对电路的输出进行线性插值。

公开(公告)号：US20080027297A1

公开(公告)日：2008-01-31

申请号：US11819324

申请日：2007-06-26

申请人： Ken-ichi Yamakoshi

发明人： Ken-ichi Yamakoshi

IPC分类号： A61B5/00

CPC分类号： A61B5/1455 ,  A61B5/14532 ,  A61B5/14546 ,  G01N21/359 ,  G01N33/491 ,  G01N2201/1228 ,  G01N2201/1232 ,  G01N2201/129

摘要： A non-invasive blood constituents measuring instrument measures blood constituent values including blood glucose concentration in a living body non-invasively. The instrument is composed of a light source 11 to irradiate a light containing plural wavelengths to a living body 13, a light receiver 14 to detect the light transmitted through a living body or reflected and scattered thereon, a spectrum analyzer 15 to analyze the light transmitted through the living body or reflected thereon at different times, a subtraction processor 18 to generate spectrum subtraction from the spectrum of the light at the different times measured by the spectrum analyzer 15, and a blood glucose concentration predictor 21 into which the output data of the subtraction processor 18 are input and which outputs a blood constituent value.

摘要翻译： 非侵入性血液成分测量仪器非侵入性地测量血液成分值，包括生物体中的血糖浓度。 仪器由将多个波长的光照射到生物体13的光源11，检测透过生物体或反射和散射的光的光接收器14构成，频谱分析器15，用于分析透射的光 通过生物体或在不同时间在其上反射的减法处理器18，用于从由频谱分析仪15测量的不同时间的光谱产生频谱减法;以及血糖浓度预测器21，其中输出数据 减法处理器18被输入并输出血液成分值。

公开(公告)号：US5365313A

公开(公告)日：1994-11-15

申请号：US32299

申请日：1993-03-17

申请人： Katsuya Nagamochi ,  Rintaro Nakane

发明人： Katsuya Nagamochi ,  Rintaro Nakane

IPC分类号： G01N21/88 ,  G01J1/44 ,  G01N21/84 ,  G01N21/86 ,  G01N21/952 ,  G03G15/00 ,  G03G15/08

CPC分类号： G03G15/5041 ,  G01J1/44 ,  G01J2001/444 ,  G01N2021/4769 ,  G01N2021/8433 ,  G01N21/86 ,  G01N2201/1232 ,  G03G2215/00042

摘要： A toner depositing amount measuring apparatus for measuring the amount of toner deposited on a photosensitive drum includes a light source for irradiating the surface of the photosensitive drum with light and a photoelectric converting section for receiving the reflected light and converting the received reflected light into an electric signal. A logarithmic calculation is applied to the output signal of the photoelectric converting section in a logarithm-compressing section. The temperature characteristics of the logarithm-compressing section are compensated for in a temperature compensating section. The amount of the toner deposition is calculated in a toner depositing amount calculating section based on a difference between the data during non-deposition of the toner and the data during deposition of the toner, the data being obtained from the logarithm-compressing section. Further, image forming conditions are changed in a control section in accordance with an output signal denoting the calculated deposition amount of the toner so as to control the density of the image formed.

摘要翻译： 用于测量沉积在感光鼓上的调色剂量的调色剂沉积量测量装置包括用于用光照射感光鼓的表面的光源和用于接收反射光的光电转换部分，并将接收的反射光转换成电 信号。 在对数压缩部中对光电转换部的输出信号进行对数运算。 在温度补偿部中补偿对数压缩部的温度特性。 调色剂沉积的量基于调色剂非沉积期间的数据与沉积调色剂期间的数据之间的差异在调色剂沉积量计算部分中计算，该数据从对数压缩部分获得。 此外，根据表示计算出的调色剂沉积量的输出信号，在控制部分中改变图像形成条件，以便控制形成的图像的浓度。

公开(公告)号：US08275433B2

公开(公告)日：2012-09-25

申请号：US11819324

申请日：2007-06-26

申请人： Ken-ichi Yamakoshi

发明人： Ken-ichi Yamakoshi

IPC分类号： A61B5/1455

CPC分类号： A61B5/1455 ,  A61B5/14532 ,  A61B5/14546 ,  G01N21/359 ,  G01N33/491 ,  G01N2201/1228 ,  G01N2201/1232 ,  G01N2201/129

摘要： A non-invasive blood constituents measuring instrument measures blood constituent values including blood glucose concentration in a living body non-invasively. The instrument is composed of a light source 11 to irradiate a light containing plural wavelengths to a living body 13, a light receiver 14 to detect the light transmitted through a living body or reflected and scattered thereon, a spectrum analyzer 15 to analyze the light transmitted through the living body or reflected thereon at different times, a subtraction processor 18 to generate spectrum subtraction from the spectrum of the light at the different times measured by the spectrum analyzer 15, and a blood glucose concentration predictor 21 into which the output data of the subtraction processor 18 are input and which outputs a blood constituent value.

摘要翻译： 非侵入性血液成分测量仪器非侵入性地测量血液成分值，包括生物体中的血糖浓度。 仪器由将多个波长的光照射到生物体13的光源11，检测透过生物体或反射和散射的光的光接收器14构成，频谱分析器15，用于分析透射的光 通过生物体或在不同时间在其上反射的减法处理器18，用于从由频谱分析仪15测量的不同时间的光谱产生频谱减法;以及血糖浓度预测器21，其中输出数据 减法处理器18被输入并输出血液成分值。

公开(公告)号：US20060063983A1

公开(公告)日：2006-03-23

申请号：US10508833

申请日：2003-03-25

申请人： Ken-ichi Yamakoshi

发明人： Ken-ichi Yamakoshi

IPC分类号： A61B5/00

CPC分类号： A61B5/1455 ,  A61B5/14532 ,  A61B5/14546 ,  G01N21/359 ,  G01N33/491 ,  G01N2201/1228 ,  G01N2201/1232 ,  G01N2201/129

摘要： A non-invasive blood constituents measuring instrument measures blood constituent values including blood glucose concentration in a living body. The instrument is composed of a light source 11 to irradiate a light containing plural wavelengths to a living body 13, a light detector 14 to detect the light transmitted through a living body or reflected thereon, an instantaneous spectrum analyzer 15 to analyze the light transmitted through the living body or reflected thereon at different times, a subtraction processor 18 to generate spectrum subtraction from the spectrum of the light at the different times measured by the spectrum analyzer 15, and a blood glucose concentration predictor 21 into which the output data of the subtraction processor 18 are input and which outputs a blood constituent value.

摘要翻译： 非侵入性血液成分测量仪器测量血液成分值，包括生物体中的血糖浓度。 该仪器由将多个波长的光照射到生物体13的光源11，检测透过生物体或反射的光的光检测器14构成，用于分析透过的光的瞬时光谱分析仪15 生物体或在不同时间反射的减法处理器18，用于从由频谱分析仪15测量的不同时间的光的频谱产生频谱减法;以及血糖浓度预测器21，其中减法的输出数据 处理器18被输入并输出血液成分值。

公开(公告)号：US5083036A

公开(公告)日：1992-01-21

申请号：US641180

申请日：1991-01-15

申请人： Howard L. Beers

发明人： Howard L. Beers

IPC分类号： G01N21/27

CPC分类号： G01N21/27 ,  G01N2201/1232

摘要： An indicator circuit is provided for an apparatus that measures the concentration of a selected component in a test sample. The apparatus generates a test voltage that represents the concentration of the component in the test sample. The circuit generates a series of range voltages, each of which represents a respective one of a series of potential concentration ranges of the component in the test sample. A switching circuit selects an adjacent pair of range voltages immediately above and below the test voltage and applies the selected range voltages across an incremental voltage divider such that the voltage difference of the selected range voltages is divided into a series of incremental voltages, each of which represents a respective one of a series of potential incremental concentration levels of the component within each concentration range. The test voltages are compared with each of the incremental concentration voltages and the actual incremental concentration level of the component in the test sample is determined. There is a group of incremental indicator elements, each of which represents and displays a respective incremental concentration level in each of the concentration ranges.

摘要翻译： 提供了一种用于测量测试样品中所选组分的浓度的装置的指示器电路。 该装置产生表示测试样品中组分浓度的测试电压。 电路产生一系列范围电压，每个范围电压表示测试样品中组分的一系列潜在浓度范围中的相应一个。 切换电路选择在测试电压之上和之下的相邻的一对范围电压，并将所选择的范围电压施加在增量分压器上，使得所选择的范围电压的电压差被分成一系列的增量电压，每个增量电压 表示每个浓度范围内组分的一系列潜在增量浓度水平中的相应一个。 将测试电压与每个增量浓度电压进行比较，并确定测试样品中组分的实际增量浓度水平。 有一组增量指标元素，每个元素在每个浓度范围中表示和显示相应的增量浓度水平。

公开(公告)号：US5013155A

公开(公告)日：1991-05-07

申请号：US413375

申请日：1989-09-27

申请人： Franklyn M. Rybak

发明人： Franklyn M. Rybak

IPC分类号： G01N21/03 ,  G01N21/27

CPC分类号： G01N21/272 ,  G01N21/03 ,  G01N2201/0621 ,  G01N2201/0813 ,  G01N2201/1232

摘要： A portable hand held instrument is capable of making accurate colorimetric measurements in the field. The instrument has a body which houses the electronic circuitry and a door which allows a vial having a solution to be measured to be placed therein. The vial is illuminated lengthwise by a light beam of two wavelengths, one of which serves as a reference. The light emerging from the top of the vial is spatially integrated and directed to a detector. The detector measures the intensity of the transmitted light, and the electronic circuit determines the difference between the logarithms of the detected signals. This difference is multiplied by a constant to produce a signal representative of the concentration and is displayed. The resolution of the measurement is automatically increased when the processor senses that the signals are too small.

摘要翻译： 便携式手持式仪器能够在现场进行准确的比色测量。 仪器具有容纳电子电路的主体和允许将待测溶液的小瓶放置在其中的门。 小瓶由两个波长的光束纵向照射，其中一个用作参考。 从小瓶顶部出现的光在空间上集成并被引导到检测器。 检测器测量透射光的强度，并且电子电路确定检测信号的对数之间的差。 该差乘以常数以产生表示浓度的信号并显示。 当处理器感觉到信号太小时，测量的分辨率会自动增加。

公开(公告)号：US4500205A

公开(公告)日：1985-02-19

申请号：US465683

申请日：1983-02-10

申请人： Shinichiro Watanabe

发明人： Shinichiro Watanabe

IPC分类号： G01J3/42 ,  G01N21/27

CPC分类号： G01J3/42 ,  G01N2201/1232

摘要： In a spectrophotometer of double beam type comprising a radiation source, reference and sample cells, a photo detector, and beam path switching means, a current-voltage converting amplifier and a logarithmic amplifier in parallel connection are connected to the photo detector. In measuring the transmittance of a sample material in the sample cell, an output of the detector responding to a sample cell transmitted beam is directly supplied to the logarithmic amplifier without undergoing current-voltage conversion while an output of the detector responding to a reference cell transmitted beam is supplied to the current-voltage converting amplifier without undergoing logarithmic amplification.

摘要翻译： 在包括辐射源，参考和样品池，光电检测器和光束路径切换装置的双光束类型的分光光度计中，并联连接的电流 - 电压转换放大器和对数放大器连接到光电检测器。 在测量样品池中的样品材料的透射率时，响应于样品池透射束的检测器的输出直接提供给对数放大器而不经历电流 - 电压转换，而响应于参考单元的检测器的输出被发送 光束被提供给电流 - 电压转换放大器，而不经历对数放大。