公开(公告)号：US4550084A

公开(公告)日：1985-10-29

申请号：US553096

申请日：1983-11-18

Applicant: Larry A. Nelson ,  Leon W. Schmidt

Inventor： Larry A. Nelson ,  Leon W. Schmidt

IPC: G01J1/18 ,  G01N21/07 ,  G01N9/30 ,  G01N35/00

CPC classification number: G01N21/07 ,  G01J2001/184 ,  Y10T436/111666 ,  Y10T436/115831

Abstract: A chemical analysis system for analyzing a plurality of independent specimens that have time varying characteristics includes a circumferential array of analysis regions that hold the specimens. The analytical regions are sequentially and repetitively sensed and resulting analysis signals corresponding to monitored specimen characteristics are stored in corresponding memory locations. A signal transmission channel connected between the sensor and the memory includes a signal storage capacitor and variable slew rate circuitry. The stored data signal value from the location in memory corresponding to the next analysis region to be sensed is applied to the signal transmission channel while the slew rate circuitry is set in a fast slew rate condition to preset the storage capacitor, and then the data signal generated by said sensor is applied to the signal transmission channel while the slew rate circuitry is set in a slow slew rate condition to adjust the data signal value in the storage capacitor to the current analysis signal value provided by the sensor.

Abstract translation: 用于分析具有时变特性的多个独立样本的化学分析系统包括保持样本的分析区域的圆周阵列。 分析区域被顺序地和重复地感测，并且对应于监测的样本特征的结果分析信号被存储在相应的存储器位置中。 连接在传感器和存储器之间的信号传输通道包括信号存储电容器和可变转换速率电路。 将来自存储器中对应于待检测的下一个分析区域的存储器中存储的数据信号值应用于信号传输通道，同时将转换速率电路设置为快速转换速率条件以预设存储电容器，然后将数据信号 将所述传感器产生的信号施加到信号传输通道，同时将转换速率电路设置为慢速转换速率条件，以将存储电容器中的数据信号值调整为由传感器提供的当前分析信号值。

公开(公告)号：US5173750A

公开(公告)日：1992-12-22

申请号：US475575

申请日：1990-02-06

Applicant: Joseph F. Laukaitis

Inventor： Joseph F. Laukaitis

IPC: G01J1/16 ,  G01J1/18 ,  G01J1/44 ,  G01N21/27

CPC classification number: G01J1/16 ,  G01N21/27 ,  G01J2001/1694 ,  G01J2001/184 ,  G01J2001/4433 ,  G01N21/4738 ,  G01N2201/0621

Abstract: A reflection densitometer includes a light source and a photodetector having an output which has a signal component characteristic of the amount of reflected light received from a surface to be measured and a noise component. The noise component of the output is isolated in time by switching the light source on and off so as to create alternating first and second time periods during which the output of the photodetector is characteristic of only the noise component and in which the output of the photodetector is characteristic of both the signal component plus the noise component, respectively. The output of the photodetector during the second time period is subtracted from the output during the first time period to obtain a signal characteristic of only the output of the photodetector characteristic of relected light received. The signal is held constant during the first and second periods by a sample and hold circuit adapted to sample the signal during the second periods and to hold the sampled signal during the first periods.

Abstract translation: 反射光密度计包括光源和具有输出的光电检测器，该输出具有从被测量表面接收的反射光的信号分量特性和噪声分量。 通过切换光源来输出的噪声分量在时间上是隔离的，以便产生交替的第一和第二时间段，在该时间段期间，光电检测器的输出仅具有噪声分量，并且其中光电检测器的输出 分别是信号分量加噪声分量的特征。 在第一时间段期间，从第二时间段的光电检测器的输出中减去输出，以获得仅接收的所选择的光的光检测器特性的输出的信号特性。 信号在第一和第二周期期间由采样和保持电路保持恒定，该采样和保持电路适于在第二周期期间对信号进行采样并且在第一周期期间保持采样信号。

公开(公告)号：US4544273A

公开(公告)日：1985-10-01

申请号：US518633

申请日：1983-07-29

Applicant: Dale F. Berndt

Inventor： Dale F. Berndt

IPC: G01J1/16 ,  G01J1/18 ,  G01N21/53 ,  G01N21/00

CPC classification number: G01N21/534 ,  G01J2001/1636 ,  G01J2001/184 ,  G01N2201/0621 ,  G01N2201/1235 ,  G01N2201/12769

Abstract: Apparatus for controllably admitting a sample volume of engine exhaust into a bifurcated, closed-loop opacity chamber and wherein the exhaust sample is controllably directed away from the internal optics via symmetric flow inducing air guides. A pulsed light source is controllably directed through the opacity chamber and exhaust sample and the detected light is compared to a reference level so as to determine a relative measure of the sample's opacity. Attendant control circuitry permits the selected display of corresponding sample opacity and density values.

Abstract translation: 用于可控制地将发动机排气的样品体积引入分叉的闭环不透明室的装置，并且其中所述排气样品通过对称流引导的空气引导件被可控地远离所述内部光学器件。 脉冲光源被可控地引导通过不透明室并排出样品，并将检测到的光与参考水平进行比较，以便确定样品的不透明度的相对测量。 话务员控制电路允许选择显示相应的样本不透明度和浓度值。

公开(公告)号：US4446106A

公开(公告)日：1984-05-01

申请号：US339331

申请日：1982-01-15

Applicant: Larry A. Nelson ,  Leon W. Schmidt

Inventor： Larry A. Nelson ,  Leon W. Schmidt

IPC: G01J1/18 ,  G01N21/07 ,  G01N9/30 ,  G01N35/00

CPC classification number: G01N21/07 ,  G01J2001/184 ,  Y10T436/111666 ,  Y10T436/115831

Abstract: A chemical analysis system for analyzing a plurality of independent specimens that have time varying characteristics includes a circumferential array of analysis regions that hold the specimens. The analytical regions are sequentially and repetitively sensed and resulting analysis signals corresponding to monitored specimen characteristics are stored in corresponding memory locations. A signal transmission channel connected between the sensor and the memory includes a signal storage capacitor and variable slew rate circuitry. The stored data signal value from the location in memory corresponding to the next analysis region to be sensed is applied to the signal transmission channel while the slew rate circuitry is set in a fast slew rate condition to preset the storage capacitor, and then the data signal generated by said sensor is applied to the signal transmission channel while the slew rate circuitry is set in a slow slew rate condition to adjust the data signal value in the storage capacitor to the current analysis signal value provided by the sensor.

Abstract translation: 用于分析具有时变特性的多个独立样本的化学分析系统包括保持样本的分析区域的圆周阵列。 分析区域被顺序地和重复地感测，并且对应于监测的样本特征的结果分析信号被存储在相应的存储器位置中。 连接在传感器和存储器之间的信号传输通道包括信号存储电容器和可变转换速率电路。 将来自存储器中对应于待检测的下一个分析区域的存储器中存储的数据信号值应用于信号传输通道，同时将转换速率电路设置为快速转换速率条件以预设存储电容器，然后将数据信号 将所述传感器产生的信号施加到信号传输通道，同时将转换速率电路设置为慢速转换速率条件，以将存储电容器中的数据信号值调整为由传感器提供的当前分析信号值。

公开(公告)号：US09291494B1

公开(公告)日：2016-03-22

申请号：US14708212

申请日：2015-05-09

Applicant: Gregory Hubert Piesinger

Inventor： Gregory Hubert Piesinger

IPC: G01N21/00 ,  G01J1/04 ,  G01J1/42 ,  G01R31/12 ,  H04N5/353 ,  G02B5/20 ,  H04N5/232 ,  H04N5/04

CPC classification number: G02B5/20 ,  G01J1/18 ,  G01J1/4228 ,  G01J1/429 ,  G01J2001/1668 ,  G01J2001/1678 ,  G01J2001/184 ,  G01R31/1218 ,  G02B5/208 ,  H04N5/2353

Abstract: A solar blind corona camera designed specifically for use on 60 Hz or 50 Hz AC power distribution equipment is based on the fact that electrical discharge corona only occurs above some voltage threshold level on the positive and negative voltage peaks of the AC power waveform. Between these peaks, when the AC voltage is below the discharge corona voltage threshold, the electrical discharge and resulting corona are extinguished. An image sensor is used to both capture the corona-plus-ambient light image during the corona period and the ambient light image during the non-corona period. The ambient light image is then subtracted from the corona-plus-ambient light image leaving only the corona light image which is annunciated and displayed along with the ambient light image. This process effectively renders the corona camera solar blind so it can be used both at night and during daylight.

Abstract translation: 设计专门用于60 Hz或50 Hz交流配电设备的太阳能盲电晕照相机是基于以下事实：放电电晕仅在交流电源波形的正电压峰值和负电压峰值之上发生在某一电压阈值电平以上。 在这些峰之间，当AC电压低于放电电晕电压阈值时，放电和产生的电晕熄灭。 图像传感器用于在电晕期间捕获电晕加环境光图像，并且在非电晕期间捕获环境光图像。 然后从电晕加环境光图像中减去环境光图像，仅留下与环境光图像一起通知并显示的电晕光图像。 这个过程有效地使电晕照相机太阳能遮阳板能够在夜间和日间使用。

公开(公告)号：US5225884A

公开(公告)日：1993-07-06

申请号：US716667

申请日：1991-06-05

Applicant: Steven A. Stark ,  David Shen

Inventor： Steven A. Stark ,  David Shen

IPC: G01J11/00 ,  G01J1/02 ,  G01J1/18 ,  G01J1/42

CPC classification number: G01J1/02 ,  G01J1/0271 ,  G01J1/42 ,  G01J1/4257 ,  G01J11/00 ,  G01J2001/0285 ,  G01J2001/184 ,  G01J2001/4238

Abstract: System and method for analyzing pulses from an excimer laser by measuring light energy rather than heat energy. The output of the laser is monitored with a photodetector to provide electrical current pulses corresponding to the intensity of the light in individual ones of the laser pulses. The current pulses are integrated to provide voltages corresponding to the light energy of the laser pulses, and the voltages are converted to digital signals. The digital signals are accumulated during the exposure period to determine the total light energy of the pulses during that period and also during a shorter interval of time during the exposure period. The light energy for the interval is divided by the length of the interval to determine the average intensity of the pulses during the interval. Displays are provided for the light energy and the intensity of the pulses, as well as the length of the exposure period.

Abstract translation: 通过测量光能而不是热能来分析来自准分子激光器的脉冲的系统和方法。 用光电检测器监测激光器的输出，以提供与各个激光脉冲中的光的强度对应的电流脉冲。 电流脉冲被积分以提供与激光脉冲的光能相对应的电压，并将电压转换成数字信号。 数字信号在曝光期间被累积，以确定该期间脉冲的总光能以及曝光期间较短的时间间隔期间的总光能。 将间隔的光能除以间隔的长度，以确定间隔期间脉冲的平均强度。 提供了用于光能和脉冲强度的显示以及曝光周期的长度。