Shaped fabric products
    1.
    发明授权
    Shaped fabric products 失效
    异型面料产品

    公开(公告)号:US5613522A

    公开(公告)日:1997-03-25

    申请号:US549456

    申请日:1995-10-27

    Abstract: Disclosed are flexible, kink-resistant shaped fabric products which are particularly well adapted for protecting and/or covering elongate substrates, such as cables, conduits, wiring and the like. The shaped fabric products include a wall portion comprising a filament resiliently set in a spiral configuration with respect to the longitudinal axis of the shaped product. The wall portion may also preferably comprise a filament in the form of circumferential hoops substantially conforming in shape and size to the cross-sectional configuration of the shaped product.

    Abstract translation: 公开的是柔性的,抗扭结的织物产品,其特别适用于保护和/或覆盖细长的基底,例如电缆,导管,布线等。 成形的织物产品包括壁部分,其包括相对于成形产品的纵向轴线以螺旋形状弹性设置的细丝。 壁部分还可以优选地包括圆形箍形式的长丝,其基本上符合成形产品的横截面形状和尺寸。

    Interferometric optical path difference scanners and FT
spectrophotometers incorporating them
    2.
    发明授权
    Interferometric optical path difference scanners and FT spectrophotometers incorporating them 失效
    干涉光路差扫描仪和融合了它们的FT分光光度计

    公开(公告)号:US4684255A

    公开(公告)日:1987-08-04

    申请号:US760013

    申请日:1985-07-29

    Inventor: Michael A. Ford

    CPC classification number: G02B27/108 G01J3/453 G02B27/143 G02B27/144

    Abstract: In an interferometric apparatus the path of the output beam of a rotary Optical Path Difference scanning assembly leading to an electrically responsive detector is maintained substantially fixed in space for any scan angle within predetermined limits, thus obviating a serious drawback of a prior art proposal wherein the output beam translates significantly over the detector face with changes in scan angle, with the result that the detector output is vitiated by totally spurious variations of the energy reaching it.In one embodiment, the scanning assembly comprises a beam splitter having a semi-reflective layer the output face of which cooperates with the face of an output mirror normal thereto, the axis of rotation being substantially coincident with the line of intersection between the prolongation planes of the two faces. A Fourier Transform spectrophotometer embodying the assembly is also described.

    Abstract translation: 在干涉测量装置中,导致电响应检测器的旋转光路差分扫描组件的输出光束的路径在空间内保持基本上固定在预定限度内的任何扫描角度,从而避免了现有技术方案的严重缺点,其中 输出光束随着扫描角度的变化而显着地在检测器面上平移,结果是检测器输出通过到达它的能量的完全杂散变化来破坏。 在一个实施例中,扫描组件包括具有半反射层的分束器,该半反射层的输出面与其正常的输出镜的表面配合,旋转轴线基本上与延伸平面之间的交叉线重合 两面。 还描述了体现组件的傅里叶变换分光光度计。

    Spectrophotometer system having power line synchronization
    3.
    发明授权
    Spectrophotometer system having power line synchronization 失效
    分光光度计系统具有电力线同步

    公开(公告)号:US4332470A

    公开(公告)日:1982-06-01

    申请号:US128289

    申请日:1980-03-07

    CPC classification number: G01J3/42 G01J1/36

    Abstract: A light chopper for chopping the monochromatic light beam of a spectrophotometer system, has a rotatable shaft driven by a synchronous motor at a frequency proportional to the power line frequency. An aperture bearing disc rotates with the shaft in relation to a photocell/detector array for generating digital timing signals for use by a microcomputer to control the tasks of the spectrophotometer system in synchronism with line frequency. The microcomputer monitors line frequency for responsively programming a programmable divider for generating an index signal for proportionally sequencing the wavelength of the monochromatic beam through a predetermined spectral range.The rotatable shaft is coupled to the synchronous motor via a mechanical pin drive and a set of attracting magnets which are spaced in face confronting relation at the point of coupling for providing compliance and damping between the coupled shaft and synchronous motor, thus minimizing phase jitter of the timing system and permitting rejection of time frequency stray circuit pickup.

    Abstract translation: 用于切割分光光度计系统的单色光束的光斩波器具有由同步电动机以与电力线频率成比例的频率驱动的可旋转轴。 孔轴承盘相对于光电池/检测器阵列与轴一起旋转,用于产生数字定时信号,供微型计算机用于与线路频率同步地控制分光光度计系统的任务。 微型计算机监视线路频率以响应地编程可编程分频器,用于产生索引信号,以对通过预定光谱范围的单色光束的波长进行比例排序。 可旋转轴通过机械销驱动器和一组吸引磁铁联接到同步电动机,这些吸引磁体在联接点处以面对面的关系间隔开,以在联接轴和同步电动机之间提供顺应性和阻尼,从而最小化相位抖动 定时系统和允许拒绝时频杂散电路拾取。

    Apparatus for changing the speed ratio between first and second
displaceable members
    5.
    发明授权
    Apparatus for changing the speed ratio between first and second displaceable members 失效
    用于改变第一和第二可移位构件之间的速比的装置

    公开(公告)号:US4073198A

    公开(公告)日:1978-02-14

    申请号:US716301

    申请日:1976-08-20

    Inventor: Michael A. Ford

    Abstract: In a device such as a spectrophotometer with an associated chart recorder in which the speed ratio between a first displaceable member and a second displaceable member may be selectively changed within a predetermined range of speed ratios, in a first embodiment of invention which is mechanical in nature, a number of gear trains in constant mesh with each other are provided to obtain the different speed ratios. Each of the gear trains has associated therewith a rotary disc with circumferentially even spaced apertures, the gear train obtaining an input from the first displaceable member by means of arms rotatable concentric with the discs, the arms carrying a pin adapted to enter into positive engagement with any one aperture, the number apertures depending on the scale served by the associated gear train. In a second, electrical embodiment equivalent operation is obtained by maintaining counts in counters of the position where the second displaceable member would be for each of the given scales along with maintaining a count of the actual position with comparator means used to bring the actual count into correspondence with the desired count when a scale change takes place.

    Abstract translation: 在诸如具有相关图表记录器的分光光度计的装置中,其中可以在预定速度比范围内选择性地改变第一可移位构件和第二可移位构件之间的速比,在本发明的第一实施例中,其性质是机械性的 提供了彼此连续啮合的多个齿轮系以获得不同的速比。 每个齿轮系具有与其圆周均匀间隔的孔的旋转盘,齿轮系通过可与圆盘同心的臂获得来自第一可移位构件的输入,所述臂承载着适于与 任何一个孔径,数量孔径取决于相关齿轮系所服务的刻度。 在另一方面,电气实施例的等效操作是通过保持第二可移位构件对于给定尺度的每个位置的计数器中的计数而获得的,同时通过比较器装置保持实际位置的计数,所述比较器装置用于将实际计数 当发生比例变化时,与所需计数的对应关系。

    Counteracting the effect of phase shift changes between two quantities
in extracting their ratio
    7.
    发明授权
    Counteracting the effect of phase shift changes between two quantities in extracting their ratio 失效
    抵消两个数量之间的相移变化的影响来提取它们的比例

    公开(公告)号:US4453225A

    公开(公告)日:1984-06-05

    申请号:US241348

    申请日:1981-03-06

    Inventor: Michael A. Ford

    CPC classification number: G01J3/42 G01J2003/2866

    Abstract: The accuracy of the ratio between two time-varying quantities represented by electrical signals, such as the sample transmission (or absorption) signal and the reference signal in a double-beam, ratio-recording, infrared spectrophotometer, is impaired if the electrical signals are subject to inconstant phase shifts. The present invention counteracts the effect of phase shift variations, whatever their origin, by alternately reversing the order in which an elemental component of one quantity is made to occur with respect to an elemental component of the other quantity so that the said effect reverses in sign when the order is reversed and substantially cancels out when the respective elemental portions are combined to form the numerator and the denominator of the ratio. The invention is particularly described with reference to a spectrophotometer of the type referred to.

    Abstract translation: 如果电信号是电信号,则电子信号表示的两个时变量之间的比率的准确性(例如样品透射(或吸收)信号)和双光束比率记录红外分光光度计中的参考信号被削弱 受不了相变的影响。 本发明通过交替地反转相对于其他量的元素分量发生一个量的元素分量的顺序来抵消相移变化的影响,无论其起源如何,使得所述效应在符号中反转 当顺序颠倒时,当各个元素部分被组合以形成比例的分子和分母时基本上消除。 参考所述类型的分光光度计来具体描述本发明。

    Minimizing the effect of spurious photodetector currents in flash
spectrofluorimetry
    8.
    发明授权
    Minimizing the effect of spurious photodetector currents in flash spectrofluorimetry 失效
    最小化闪光分光荧光法中杂散光电检测器电流的影响

    公开(公告)号:US4438329A

    公开(公告)日:1984-03-20

    申请号:US373072

    申请日:1982-04-29

    CPC classification number: G01N21/64 G01N2201/0696

    Abstract: The vitiating effect on the fluorescence measuring signal of extraneous currents flowing through the fluorescence detection means in flash spectrofluorimetry is almost completely eliminated by integrating the output of the fluorescence measuring means for the duration of the signal period, which includes a flash duration, and again for an equal period occurring between flashes which therefore does not include a flash duration. The second integral is then subtracted from the first to obtain a fluorescence measuring signal substantially unaffected by extraneous currents, such as dark current, sample phosphorescence, etc. The invention is applicable to single- and double-channel operation. In the latter, in addition to the fluorescence measuring channel there is provided a fluorescence reference channel. This enables the fluorescence measuring signal and the fluorescence reference signal to be ratioed together, the effect of extraneous currents having first been eliminated in both.

    Abstract translation: 在闪光分光荧光测定法中流经荧光检测装置的外来电流的荧光测量信号的荧光测量信号几乎完全消除,在信号周期的持续时间内积分荧光测量装置的输出,其包括闪光持续时间,并再次为 在闪光之间发生相等的时间段,因此不包括闪光持续时间。 然后从第一积分中减去第二积分,以获得基本上不受诸如暗电流,样品磷光等的外来电流的影响的荧光测量信号。本发明可应用于单通道和双通道操作。 在后者中,除了荧光测量通道之外,还提供了荧光参考通道。 这使得荧光测量信号和荧光参考信号能够一起比较,两者中首先消除了外部电流的影响。

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