Set point control circuit for an infrared gas analyzer
    1.
    发明授权
    Set point control circuit for an infrared gas analyzer 失效
    红外线气体分析仪的设定点控制电路

    公开(公告)号:US4918311A

    公开(公告)日:1990-04-17

    申请号:US181929

    申请日:1988-04-15

    Abstract: An arrangement for ensuring the stability of the set point for a gas analyzer is disclosed. The set point control circuit utilizes an amplifier which is alternately switched between a reference voltage and a sensor signal to provide a signal to a processor representing the reference signal and the sensor signal. The processor compares the two signals and adjusts the heater associated with the sensor to provide a stable set point for the gas analyzer. The arrangement eliminates the need for precision resistors within the set point control circuit and therefore significantly reduces the cost of the circuitry.

    Abstract translation: 公开了一种用于确保气体分析器的设定点的稳定性的装置。 设定点控制电路利用在基准电压和传感器信号之间交替切换的放大器,以向表示参考信号和传感器信号的处理器提供信号。 处理器比较两个信号并调节与传感器相关联的加热器,为气体分析仪提供稳定的设定点。 该布置消除了对设定点控制电路内的精密电阻的需要,因此显着降低了电路的成本。

    Infrared gas analyzer with automatic zero adjustment
    2.
    发明授权
    Infrared gas analyzer with automatic zero adjustment 失效
    红外气体分析仪具有自动调零功能

    公开(公告)号:US4687934A

    公开(公告)日:1987-08-18

    申请号:US818342

    申请日:1986-01-10

    Abstract: Automatic zeroing apparatus zeroes an infrared gas analyzer automatically upon the occurrence of preselected conditions to indicate zero in the absence of absorption of infrared radiation by a gas mixture being analyzed. The gas analyzer has a sample cell for containing a gas mixture to be analyzed. Infrared radiation directed through the sample cell is detected at a preselected wavelength to produce a detection signal. A signal processor outputs a signal systematically related to the difference between the detection signal and a reference signal. For zeroing the sample cell is filled with gas substantially nonabsorbent of infrared radiation at the respective characteristic wavelength. A comparator produces an error signal when the output signal differs from zero. A gain control automatically controls the signal level of the detection signal to reduce the output signal substantially to zero with the nonabsorbent gas filling the sample cell. The preselected conditions may include the passage of a predetermined time and a temperature drift beyond a predetermined limit.

    Abstract translation: 自动归零装置在发生预选条件时自动归零红外气体分析仪,以便在被正在分析的气体混合物不吸收红外辐射时指示为零。 气体分析仪具有用于容纳要分析的气体混合物的样品池。 以预选的波长检测引导通过样品池的红外辐射,以产生检测信号。 信号处理器输出与检测信号和参考信号之间的差异系统地相关的信号。 为了归零,样品池中填充有相应特征波长的基本上不吸收红外辐射的气体。 当输出信号与零不同时,比较器产生一个误差信号。 增益控制器自动控制检测信号的信号电平,使填充样品池的非吸收气体将输出信号基本上降至零。 预选条件可以包括经过预定时间和温度漂移超出预定极限。

    Diving computer
    3.
    发明授权
    Diving computer 失效
    潜水电脑

    公开(公告)号:US4835371A

    公开(公告)日:1989-05-30

    申请号:US113173

    申请日:1987-10-26

    CPC classification number: G06C3/00

    Abstract: Disclosed is a diving computer in the form of a circular slide rule for aiding a SCUBA diver in planning one or more dives within a short amount of time, including more than one depth per dive, so that the diver may avoid risking decompression sickness. The computer has two faces, one of which calculates the increase of pressure within body tissues during a dive and the other of which calculates the decrease of this pressure after surfacing. The result of one side's calculation is used as the initial value for the other side's calculation, permitting the diver to track net residual pressure over a series of rapid repeated and/or multiple-level dives, and by so doing, avoid excessive tissue pressures that might cause decompression sickness.

    Abstract translation: 披露了一种潜水计算机,其形式为循环滑动规则,用于帮助SCUBA潜水员在短时间内计划一次或多次潜水,包括每次潜水超过一次深度,以便潜水员可以避免减压病的风险。 计算机有两个面,其中一个计算潜水期间身体组织内的压力增加,另一个计算表面后压力的下降。 一方计算的结果用作另一方计算的初始值,允许潜水员通过一系列快速重复和/或多级潜水追踪净残留压力,并通过这样做避免过度的组织压力 可能会导致减压病。

    Arrangement for anchoring the legs of a marine tension leg platform in a
foundation on the sea floor
    4.
    发明授权
    Arrangement for anchoring the legs of a marine tension leg platform in a foundation on the sea floor 失效
    用于将海洋张力腿平台的腿锚固在海底基础中的布置

    公开(公告)号:US4968183A

    公开(公告)日:1990-11-06

    申请号:US365872

    申请日:1989-06-14

    CPC classification number: B63B21/502 Y10T403/7007

    Abstract: In an anchoring arrangement for releasable anchoring of the legs of a marine tension leg platform in a foundation on the sea floor, the lower ends of the tension legs with an end head (1) are lowered into a cylindrical anchoring casing (4). For anchoring the leg in the foundation, locking elements (7) are provided at the tension leg insertion end of casing (4), on the inside of the cylindrical casing wall, for cooperation with bosses (2) on tension leg head (1). Anchoring casing (4) is, furthermore, on the outside of its cylindrical wall, at the insertion end, provided with further bosses/grooves (10). The latter are intended for cooperation with bosses (14,15) and grooves which are provided on the inside of a cylindrical steel ring (13), which is intended to be integrallly moulded into the foundation on the sea floor. Over the end edges of casing (4) and the cylindrical integral ring (13) a locking ring (16) is provided on a contact face to provide additional fixation of the anchoring.

    Abstract translation: 在用于将海洋张力腿平台的腿部可释放地锚定在海底的基础中的锚固装置中,具有端头(1)的张力腿的下端被降低到圆柱形锚固壳体(4)中。 为了将腿固定在基座中,锁定元件(7)设置在壳体(4)的张力腿插入端,位于圆柱形壳体壁的内侧,用于与张力腿部头部(1)上的凸台(2)配合, 。 此外,锚定壳体(4)在其圆柱形壁的外侧,在插入端处设置有另外的凸起/凹槽(10)。 后者旨在与设置在圆柱形钢环(13)的内侧上的凸台(14,15)和凹槽配合,该凹槽旨在被整体模制在海底上的基座中。 在壳体(4)和圆柱形整体环(13)的端部边缘之后,在接触面上提供锁定环(16)以提供固定的附加固定。

    Digital anesthetic agent analyzer
    5.
    发明授权
    Digital anesthetic agent analyzer 失效
    数字麻醉剂分析仪

    公开(公告)号:US4692621A

    公开(公告)日:1987-09-08

    申请号:US786736

    申请日:1985-10-11

    Abstract: A gas analyzer is described comprising a sample cell for containing a gas mixture to be analyzed, a source for producing and directing infrared energy through the sample cell, a rotary filter wheel having at least one filter thereon for passing infrared energy limited to a wavelength band within the characteristic absorption band of a predetermined gas and having a dark level region substantially opaque to infrared energy, a drive for supporting and rotating the filter wheel to successively interpose the filter and the dark level region between the source and the sample cell in the path of the infrared energy directed by the source, a detector for detecting infrared energy passing through the sample cell and producing an electrical signal representative thereof, and a signal processor connected to the detector for producing an output indicating the concentration of the predetermined gas in the sample cell by comparing the electrical signals produced by the detector with the filter positioned in the infrared energy path and with the dark level region positioned in the infrared energy path. The dark level region has a substantially fully reflective surface oriented toward the sample cell when positioned in the infrared energy path whereby infrared energy impinging thereon is reflected.

    Abstract translation: 描述了一种气体分析器,其包括用于容纳要分析的气体混合物的样品池,用于产生并引导通过样品池的红外能量的源,旋转滤光轮,其上具有至少一个滤光器,用于使红外能量限制在波长带 在预定气体的特征吸收带内并且具有对红外能量基本不透明的暗电平区域的驱动器,用于支撑和旋转滤光轮的驱动器,用于将滤光器和暗电平区域连续插入光源和样品池之间的路径 由源引导的红外能量,用于检测通过样品池的红外能量并产生代表其的电信号的检测器,以及连接到检测器的信号处理器,用于产生指示样品中预定气体浓度的输出 通过将检测器产生的电信号与滤波器posi进行比较来实现 在红外能量路径和暗区域位于红外能量路径中。 当位于红外能量路径中时,暗层区域具有朝向样品池定向的基本上完全反射的表面,由此反射其上的红外能量。

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