Method and apparatus for transient temperature compensation in gas
analyzer equipment
    311.
    发明授权
    Method and apparatus for transient temperature compensation in gas analyzer equipment 失效
    气体分析仪设备瞬态温度补偿方法及装置

    公开(公告)号:US5542285A

    公开(公告)日:1996-08-06

    申请号:US332692

    申请日:1994-11-01

    CPC classification number: G01N21/3504 G01N2201/0231 G01N2201/1211

    Abstract: The invention relates to a method and apparatus for temperature compensation in gas analyzer equipment for transient error caused by temperature change. According to the method, a radiation source (1) is used for transmitting electromagnetic radiation through a gas mixture to be analyzed, the intensity of radiation transmitted through the gas mixture being analyzed is detected by means of a thermal detector (4) comprising a radiation detecting sensor element (16) and a reference sensor element (17) for generating an output signal proportional to the concentration of gas being analyzed, the temperature of said thermal detector (4) is measured either directly or indirectly, the measured detector temperature values are recorded as a function of time, and the output signal of the thermal detector (4) is temperature compensated by a correction term dependent on the temperature rate of change (DT) of the thermal detector. According to the invention, the uncorrected output signal V.sub.mass of the thermal detector (4) is temperature compensated by adding a correction term V.sub.comp dependent on the temperature rate of change (DT) of the thermal detector to said output signal.

    Abstract translation: 本发明涉及用于温度变化引起的瞬态误差的气体分析仪设备中的温度补偿方法和装置。 根据该方法,辐射源(1)用于通过要分析的气体混合物传输电磁辐射,通过被分析的气体混合物传播的辐射的强度通过包括辐射的热检测器(4)来检测 检测传感器元件(16)和参考传感器元件(17),用于产生与被分析的气体浓度成比例的输出信号,所述热检测器(4)的温度直接或间接测量,测量的检测器温度值 记录为时间的函数,并且热检测器(4)的输出信号通过取决于热检测器的温度变化率(DT)的校正项进行温度补偿。 根据本发明,热检测器(4)的未校正输出信号Vmass通过将取决于热检测器的温度变化率(DT)的校正项Vcomp加到所述输出信号来进行温度补偿。

    Method and apparatus for the spectrophotometric assay of aqueous liquids
    312.
    发明授权
    Method and apparatus for the spectrophotometric assay of aqueous liquids 失效
    含水液体分光光度法测定方法及装置

    公开(公告)号:US5453619A

    公开(公告)日:1995-09-26

    申请号:US150192

    申请日:1993-12-08

    Abstract: Method and apparatus for the spectrophotometric assay of aqueous liquids are provided with a pump for aspirating liquids, a filter with two outlets for filling a cell in which the interferometric measurements are made at a temperature between 35 and 50.degree. C. at a maximum fluctuation of 0.2.degree. C., and with a maximum relative humidity of 0.2%. Absorption curves A(f) are determined with respect to a matrix and the concentrations of components to be assayed are calculated by the use of standard equations.

    Abstract translation: 提供了含水液体分光光度法测定方法和装置,其具有抽吸液体的泵,具有两个出口的过滤器,用于填充细胞,其中在35至50℃的温度下进行干涉测量,其最大波动 0.2℃,最大相对湿度为0.2%。 吸收曲线A(f)是相对于基质确定的,并且通过使用标准方程式来计算要测定的组分的浓度。

    Environmentally sealed colorimeter for industrial environments
    313.
    发明授权
    Environmentally sealed colorimeter for industrial environments 失效
    用于工业环境的环保色差计

    公开(公告)号:US5044753A

    公开(公告)日:1991-09-03

    申请号:US541552

    申请日:1990-06-21

    CPC classification number: G01J3/02 G01J3/0286 G01J3/0291 G01N2201/0231

    Abstract: A colorimeter for characterizing the color of an object is placed in an environmentally sealed enclosure for use in industrial environments. In order to maintain an acceptable operating temperature for the colorimeter's electronics and lamp, a heat shield is placed around the lamp to substantially isolate it from the electronics. The heat shield and the environmentally sealed enclosure are made of a highly heat conductive material such as aluminum. The heat shield is thermally coupled to the environmentally sealed enclosure.

    Chemical analyzer
    314.
    发明授权
    Chemical analyzer 失效
    化学分析仪

    公开(公告)号:US4935875A

    公开(公告)日:1990-06-19

    申请号:US312353

    申请日:1989-02-13

    Abstract: 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.

    Abstract translation: 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。

    Measuring apparatus for amylose and/or amylopectin content in rice
    315.
    发明授权
    Measuring apparatus for amylose and/or amylopectin content in rice 失效
    水稻中直链淀粉和/或支链淀粉含量的测量装置

    公开(公告)号:US4800280A

    公开(公告)日:1989-01-24

    申请号:US97748

    申请日:1987-09-17

    Inventor: Toshihiko Satake

    Abstract: An apparatus for measuring amylose and/or amylopectin content in rice. A near infrared light beam having its wavelength in a range of from about 1900 nm to about 2500 nm is applied to sample rice (5). A detector (26, 27,28) receives light reflected from and/or transmitted through the sample rice (5), to generate signals representative of luminous intensity of the received light. A memory device (122) has stored therein content conversion coefficients set for the amylose and/or amylopectin. A calculation device (123) calculates the amylose and/or amylopectin content in the sample rice (5), based on the detecting signals from the detector (26,27,28) and the content conversion coefficients stored in the memory device (122). The calculated content is displayed by a display device (126,127).

    Abstract translation: 一种测定水稻中直链淀粉和/或支链淀粉含量的仪器。 将其波长在约1900nm至约2500nm范围内的近红外光束施加到样品米(5)。 检测器(26,27,28)接收从和/或透过样品米(5)反射的光,以产生表示所接收的光的发光强度的信号。 存储器件(122)中存储有为直链淀粉和/或支链淀粉设定的内容转换系数。 计算装置(123)基于来自检测器(26,27,28)的检测信号和存储在存储装置(122)中的内容转换系数,计算样品水稻(5)中的直链淀粉和/或支链淀粉含量, 。 所计算的内容由显示装置显示(126,127)。

    Gas detectors and gas analyzers utilizing spectral absorption
    316.
    发明授权
    Gas detectors and gas analyzers utilizing spectral absorption 失效
    气体探测器和气体分析仪利用光谱吸收

    公开(公告)号:US4746218A

    公开(公告)日:1988-05-24

    申请号:US904163

    申请日:1986-09-05

    CPC classification number: G01N21/3518 G01N21/031 G01N2201/0231

    Abstract: Instrumentation to detect the presence of, or to measure the concentration of, a gas or pollutant in a gaseous environment. With the use of gas filter correlation techniques and energy beams having suitable wavelengths, the presence and concentrations of these can be detected and measured, not only in flowing streams such as in exhaust stacks, but above a ground area and around its perimeter. A calibration means using a retrodirective reflector is also shown.

    Abstract translation: 用于检测气体环境中气体或污染物的存在或测量浓度的仪器。 通过使用气体过滤器相关技术和具有合适波长的能量束,可以检测和测量这些的存在和浓度,不仅在流动的流中,例如在排气堆中,而且在地面和周围的周围。 还示出了使用逆向反射器的校准装置。

    Method and apparatus for reducing Schlieren noise in a liquid
chromatograph

    公开(公告)号:US4523097A

    公开(公告)日:1985-06-11

    申请号:US527954

    申请日:1983-08-31

    CPC classification number: G01N30/74 G01N21/251 G01N2030/3038 G01N2201/0231

    Abstract: A beam of light falling within the range of 180 to 3,000 nanometers is transmitted through a flow cell in an optical compartment of an absorbance detector after warm up of the equipment while the eluant flows through the flow cell from a chromatographic column. The column extends upwardly from the absorbance detector into an air chamber having a volume of approximately 0.25 cubic foot formed with acrylic walls. Air flows from the absorbance detector under the power of a fan at approximately 10 cubic feet per minute upwardly through an air duct having a cross section of approximately 1.5 square inches to the top where it connects with the air chamber, the speed of the motor being adjustable until temperature varies less than one degree Celsius between the flow cell and the lower 10 centimeters of the column. Under these conditions Schlieren noise from the flow cell due to flow-induced thermo-optical effects is reduced.

    赤外吸光分光法によって試料ガス流中の少なくとも1つのガスの濃度を求める装置及び方法
    320.
    发明专利
    赤外吸光分光法によって試料ガス流中の少なくとも1つのガスの濃度を求める装置及び方法 有权
    装置和方法,用于通过红外吸收光谱测定样品气流中的至少一种气体的浓度

    公开(公告)号:JP2017506344A

    公开(公告)日:2017-03-02

    申请号:JP2016553004

    申请日:2015-01-22

    Abstract: 本発明は、赤外吸光分光法によって試料ガス流中の少なくとも1つのガスの濃度を求める装置に関する。この装置は、分析セル(16)を通して放射を案内可能な赤外放射源(12)と、分析セル(16)内へ導通可能な試料ガス流と、分析セル(16)内で生じた吸収スペクトルを測定可能な検出器(22)と、赤外放射源(12)又は検出器(22)に熱伝導可能に接触している低温側(70)、及び、冷却体(46)に熱伝導可能に接触している高温側(68)を有するペルチエ冷却素子(66)とを備える。しかし、赤外放射源の熱雑音のために測定の不正確性がしばしば発生する。こうした測定の不正確性を防止するために、冷却体(46)が回転数制御されるファン(38)によって冷却される。

    Abstract translation: 本发明涉及一种设备,用于通过红外吸收光谱法测定样品气体流的至少一种气体的浓度。 通过分析细胞(16)和(12),和样品气体流动的装置,可引导红外辐射源的辐射可以是导电的,以在由所述分析细胞产生的吸收光谱的分析单元(16)(16) 可测量的检测器(22)的红外辐射源(12)或探测器(22),以使与该低温侧(70)热传导接触,并且热可以转移到所述冷却体(46) 并具有与接触的热侧(68)的珀耳帖冷却元件(66)。 然而,由于红外辐射源的热噪声中的不准确测量是经常发生。 为了防止这样的测量不准确性,所述冷却体(46)由风扇(38)控制的速度冷却。

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