-
公开(公告)号：US5705753A
公开(公告)日：1998-01-06
申请号：US471005
申请日：1995-06-06
CPC分类号： G01K11/24 , G01F1/662 , G01F1/667 , G01F1/668 , G01N2291/02836 , G01N2291/02881
摘要： The present invention is an apparatus for determining the flow rate of a fluid in a pipe. The apparatus includes a device for providing acoustic energy on a diagonal path through the fluid. The diagonal providing device is in contact with the pipe. The apparatus also includes a device for providing acoustic energy on a diametrical path through the fluid. The diametrical providing device is in contact with the pipe. The apparatus is also comprised of a device for determining the flow of fluid in the pipe based on the acoustic energy of the diagonal providing device and the acoustic energy of the diametrical providing device. In one embodiment, the diagonal providing device is fixedly disposed on the pipe. In another embodiment, the diametrical providing device provides acoustic energy emitted in both directions on the diametrical path. The diagonal providing device preferably includes a first transducer and a second transducer located at diametrically opposed positions about the pipe. The first transducer and second transducer are preferably adapted to alternatively function as transmitter and receiver so as to cause ultrasonic signals to travel through the fluid along the diametric path. The diametrical providing device preferably includes a third transducer and a fourth transducer located at diagonally opposed upstream and downstream positions relative to one another. The third transducer and the forth transducer are preferably adapted to alternatively function as a transmitter and receiver so as to cause ultrasonic signals to travel through the fluid alternatively in upstream and downstream directions along the diagonal path between the third transducer and the fourth transducer. The diametric path is adjacent to the diagonal path so that the transducers are sampling the same portion of fluid.
摘要翻译： 本发明是用于确定管道中的流体的流量的装置。 该装置包括用于在通过流体的对角线路径上提供声能的装置。 对角线提供装置与管道接触。 该装置还包括用于在通过流体的直径路径上提供声能的装置。 直径提供装置与管道接触。 该装置还包括用于基于对角线提供装置的声能和直径提供装置的声能来确定管道中的流体流动的装置。 在一个实施例中，对角线提供装置固定地设置在管道上。 在另一个实施例中，直径提供装置提供在直径路径上沿两个方向发射的声能。 对角线提供装置优选地包括位于围绕管道的直径相对的位置处的第一换能器和第二换能器。 优选地，第一换能器和第二换能器适于作为发射器和接收器交替地起作用以使超声波信号沿着直径路径行进通过流体。 直径提供装置优选地包括位于相对于彼此的相对的上游和下游位置处的第三换能器和第四换能器。 优选地，第三换能器和第四换能器适于作为发射器和接收器，以便使得超声信号沿着沿着第三换能器和第四换能器之间的对角路径的上游和下游方向交替地流过流体。 直径路径与对角路径相邻，使得换能器对相同部分的流体进行采样。
-
82.发明授权Method of preparing a B-1,4 glycan matrix containing a bound fusion protein 失效制备含有结合融合蛋白的B-1,4聚糖基质的方法
公开(公告)号：US5340731A
公开(公告)日：1994-08-23
申请号：US865095
申请日：1992-04-08
IPC分类号： G01N33/573 , A61K39/39 , C07K14/55 , C07K17/12 , C07K19/00 , C08B15/00 , C08B37/08 , C08H8/00 , C12N9/16 , C12N9/38 , C12N9/42 , C12N11/12 , C12N15/09 , C12P21/02 , C12Q1/56 , C12R1/19 , D06P3/60 , D21H17/00 , G01N33/531 , C12N15/00 , C12P21/00
CPC分类号： C08H8/00 , A61K39/39 , C07K14/55 , C08B15/00 , C08B37/003 , C12N11/12 , C12N9/16 , C12N9/2437 , C12N9/2468 , C12Q1/56 , C12Y302/01004 , C12Y302/01074 , C12Y302/01091 , D21H17/005 , G01N33/531 , C07K2319/00 , C07K2319/02 , C07K2319/034 , C07K2319/33 , C07K2319/50 , C07K2319/75 , G01N2333/924 , G01N2400/26 , Y10S435/803 , Y10S530/808 , Y10S530/814
摘要： A fusion protein that can function as a removable label is prepared containing a polypetide such as an enzyme and an amino acid sequence having a substrate binding region of a polysaccharidase such as cellulase that has essentially no polysaccharidase activity. By contacting the fusion protein with a .beta.-1,4 glycan matrix such as cellulose, the substrate binding region binds to the matrix to immobilize the polypeptide. The polypetide or fusion protein can be removed from the matrix with a protease capable of cleaving a specific protease cleavage site, or with a solution having a low ionic strength or a high pH. The fusion protein can be prepared by recombinant DNA technology.
摘要翻译： 制备可用作可去除标记的融合蛋白，其含有多肽如酶和具有基本上不含多糖酶活性的纤维素酶的多糖酶的底物结合区的氨基酸序列。 通过使融合蛋白与β-1,4-聚糖基质例如纤维素接触，底物结合区结合基质以固定多肽。 可以用能够切割特异性蛋白酶切割位点的蛋白质或用离子强度低或高pH值的溶液从基质中除去多肽或融合蛋白。 融合蛋白可以通过重组DNA技术制备。
-
公开(公告)号：US5032826A
公开(公告)日：1991-07-16
申请号：US368102
申请日：1989-06-19
IPC分类号： G01R31/34
CPC分类号： G01R31/34
摘要： The present invention is a monitor that detects generator core 12 hot spots where the insulation between ferromagnetic sheets is breaking down by monitoring rotor 10 shaft voltage. The difference between the differential shaft voltage at each end of the rotor 14 produces a voltage signal that changes as the core 12 malfunctions. By comparing signal samples over time, core failure can be detected. Spring loaded rotor shaft brushes 20 and 22 connected to differential isolation amplifiers 24 and 26 obtain the voltage between ends 16 and 18 of the rotating shaft and nearby frame, and a differential amplifier 28 produces the difference between the shaft end differential voltages which is the shaft dissymmetry voltage. An analog-to-digital converter 30 produces digital values of the dissymmetry voltage which can be converted into a voltage frequency spectrum by a Fourier Transform routine executed by a computer 32 or analyzed directly. The computer 32 monitors the spectrum or time domain signal over time for changes and produces an alarm when the changes exceed a threshold. Bandpass filters 34 and a simple threshold comparison routine or analog threshold devices can substitute for the FFT routine.
摘要翻译： 本发明是通过监测转子10轴电压来检测发电机铁芯12的热点，其中铁磁性薄片之间的绝缘被分解。 转子14的每端的差动轴电压之间的差产生随着铁心12发生故障而变化的电压信号。 通过随时间比较信号样本，可以检测到核心故障。 连接到差分隔离放大器24和26的弹簧加载的转子轴电刷20和22获得旋转轴和附近框架的端部16和18之间的电压，并且差分放大器28产生作为轴的轴端差分电压之间的差 不对称电压。 模拟 - 数字转换器30产生不对称电压的数字值，其可以通过由计算机32执行的傅里叶变换程序转换成电压频谱或直接分析。 计算机32随时间监视频谱或时域信号以进行改变，并且当改变超过阈值时产生警报。 带通滤波器34和简单的阈值比较程序或模拟阈值装置可替代FFT程序。
-
84.发明授权Fiber optic coupled magneto-optic sensor having a concave reflective focusing surface 失效具有凹面反射聚焦表面的光纤耦合磁光传感器
公开(公告)号：US4998063A
公开(公告)日：1991-03-05
申请号：US387570
申请日：1989-07-31
申请人： Robert C. Miller
发明人： Robert C. Miller
IPC分类号： G01R33/032
CPC分类号： G01R33/032
摘要： A device for monitoring a magnetic field intensity having a given direction, the device including: a light conducting member (11) defining a first optical port (23), a second optical port (24), an optical path extending between the ports, and elements (31,34) for causing light to travel along the path between the ports (23,24); a first polarizer (31) disposed in the optical path for polarizing the light beam in a first plane of polarizaiton transverse to the path; a second polarizer (33) disposed in the optical path for polarizing the light beam in a second plane of polarization transverse to the path, the second polarizer (33) being spaced along the path from the first polarizer (31); and a focusing surface (18) disposed to intersect the beam at a point along the path between the polarizers (31,33) to focus the light beam from the first optical port (23) onto the second optical port (24). The light conducting member (11) constitutes a medium between the first and second polarizers (31,33) for permitting rotation of the plane of polarization of the light beam under influence of the magnetic field when the device is oriented so that at least a portion of the optical path between the polarizers (31,33) extends in a direction having a component parallel to the given direction so that the intensity of the light beam at the second optical port (24) will vary as a function of variations in the intensity of the magnetic field.
摘要翻译： 一种用于监测具有给定方向的磁场强度的装置，所述装置包括：限定第一光学端口（23）的光导体（11），第二光学端口（24），在所述端口之间延伸的光路，以及 用于使光沿着所述端口（23,24）之间的路径行进的元件（31,34）; 第一偏振器（31），设置在所述光路中，用于使所述光束在与所述路径相交的第一极化平面中偏振; 设置在所述光路中的偏振器（33），用于使所述光束偏离所述路径的第二偏振平面，所述第二偏振器（33）沿着所述第一偏振器（31）的路径间隔开; 以及聚焦表面（18），其布置成在沿着所述偏振器（31,33）之间的路径的点处与所述光束相交，以将来自所述第一光学端口（23）的光束聚焦到所述第二光学端口（24）上。 导光构件（11）构成第一和第二偏振器（31,33）之间的介质，用于当装置被定向时允许在磁场的影响下旋转光束的偏振面，使得至少一部分 偏振器（31,33）之间的光路的方向在具有与给定方向平行的分量的方向上延伸，使得第二光端口（24）处的光束的强度将随强度变化的函数而变化 的磁场。
-
公开(公告)号：US4683421A
公开(公告)日：1987-07-28
申请号：US717989
申请日：1985-03-29
申请人： Robert C. Miller , Juris A. Asars
发明人： Robert C. Miller , Juris A. Asars
CPC分类号： G02F1/09 , G01R15/246
摘要： Drift compensation for the output signal of a magneto-optic current measuring system is achieved through the use of two light emitting sources, each at different frequencies, to generate two alternating optical input signals to the current sensor to establish a signal reference in order to compensate for signal drift caused by variable attenuator characteristics of the optical elements in the system.
摘要翻译： 用于磁光电流测量系统的输出信号的漂移补偿通过使用两个不同频率的发光源来实现，以产生两个交流的光输入信号到电流传感器以建立信号参考以补偿 用于由系统中光学元件的可变衰减器特性引起的信号漂移。
-
公开(公告)号：US4491790A
公开(公告)日：1985-01-01
申请号：US358770
申请日：1982-03-16
申请人： Robert C. Miller
发明人： Robert C. Miller
CPC分类号： G01R21/00
摘要： An electric energy meter includes a mutual inductance current transducer formed by primary winding means for direct connection to the current component of an electric energy quantity to be measured. Secondary winding means is inductively coupled to the primary winding means to produce an analog signal that is proportional to the time derivative of the current component. The current responsive analog signal and a voltage responsive analog signal are both applied to an electronic watthour measuring circuit.
摘要翻译： 电能表包括由初级绕组装置形成的互感电流传感器，用于直接连接到要测量的电能量的电流分量。 次级绕组装置感应耦合到初级绕组装置以产生与电流分量的时间导数成比例的模拟信号。 电流响应模拟信号和电压响应模拟信号都被应用于电子电度测量电路。
-
公开(公告)号：US4375036A
公开(公告)日：1983-02-22
申请号：US157748
申请日：1980-06-09
申请人： Robert C. Miller , David B. O'Keefe
发明人： Robert C. Miller , David B. O'Keefe
CPC分类号： H03M11/02
摘要： A strobe generator in a data entry input device is responsive to an input strobe signal from a keyboard system to generate a strobe signal which is not affected by electrical noise produced by electrostatically or electromagnetically induced signals in the signal lines running between the keyboard system and the data entry device input logic. An accurate output strobe signal is generated by utilizing a retriggerable logic circuit to filter out noise signals of a duration shorter than a predetermined period. The predetermined period is chosen to be less than the minimum duration of a valid input strobe signal and greater than the duration of active noise signals. The strobe generator retains the output strobe signal in the active state by use of a flip-flop until the strobe generator receives a reset signal acknowledging that the output strobe signal has been sampled by the data entry device input logic. Once set, the flip-flop will remain set and its corresponding output strobe signal remain active until reset, even if subsequent input strobe signals of less than or greater than the predetermined period are received.
摘要翻译： 数据输入输入设备中的选通发生器响应于来自键盘系统的输入选通信号，以产生不受在键盘系统和键盘系统之间运行的信号线中的静电或电磁感应信号产生的电噪声的选通信号的影响 数据输入设备输入逻辑。 通过利用可再触发逻辑电路来滤除短于预定周期的持续时间的噪声信号来产生精确的输出选通信号。 选择预定周期小于有效输入选通信号的最小持续时间并且大于有效噪声信号的持续时间。 选通发生器通过使用触发器将输出选通信号保持在激活状态，直到选通发生器接收到确认输出选通信号已被数据输入装置输入逻辑采样的复位信号为止。 一旦设置，即使接收到小于或大于预定周期的后续输入选通信号，触发器将保持置位，并且其对应的输出选通信号保持有效直到复位。
-
公开(公告)号：US4321464A
公开(公告)日：1982-03-23
申请号：US114921
申请日：1980-01-24
申请人： Robert C. Miller
发明人： Robert C. Miller
CPC分类号： G01H9/006
摘要： A device for measuring vibration is herein disclosed and claimed, said device comprising: a vane attached to a vibratory member; a light supply and at least one detector; and light guides. The vane includes or is attached to a mask having therein a plurality of light directing and light opaque elements. During vibration the mask travels transversely of the light path. The elements of the mask may be encoded, as with a Gray Code, so as to yield both amplitude and phase information. Or the elements may be so arranged as to chop the light into a plurality of pulses for each vibration of the vane through the use of a second, stationary mask. In either case the device yields information whose interpretation is substantially independent of fluctuations in the intensity of the source light.
摘要翻译： 本文公开并要求保护用于测量振动的装置，所述装置包括：附接到振动构件的叶片; 光源和至少一个检测器; 和导光板。 叶片包括或附接到其中具有多个光导和不透光元件的掩模。 在振动期间，掩模横向于光路。 掩码的元素可以与格雷码一样被编码，以产生幅度和相位信息。 或者这些元件可以被布置成通过使用第二固定掩模将光斩成为叶片的每个振动的多个脉冲。 在任一情况下，该装置产生的信息的解释基本上与源光强度的波动无关。
-
公开(公告)号：US4312068A
公开(公告)日：1982-01-19
申请号：US884465
申请日：1978-03-07
申请人： Gary J. Goss , Robert C. Miller
发明人： Gary J. Goss , Robert C. Miller
CPC分类号： H03M13/09
摘要： A method and apparatus for assuring the accuracy of data received by any device in a computer system from any other device in the same computer system or from another computer system. The existing hardware of a computer system is utilized to generate a cyclic redundant check character each time a unit of data is transmitted. The cyclic redundant check character is concatenated to the right of such data transmitted. Each time that the particular data is received, the check character and the data with which it is associated, is again manipulated in the same manner as in generating the check character. If the data received is the same as the data transmitted, the result of such manipulation is zero.
摘要翻译： 一种用于确保计算机系统中的任何设备从同一计算机系统中的任何其他设备或另一计算机系统接收的数据的准确性的方法和装置。 每当发送数据单元时，利用计算机系统的现有硬件来生成循环冗余校验字符。 循环冗余校验字符连接在发送的数据的右侧。 每当接收到特定数据时，与生成检查字符相同的方式再次操作检查字符和与其相关联的数据。 如果接收的数据与发送的数据相同，则这种操作的结果为零。
-
公开(公告)号：US4255707A
公开(公告)日：1981-03-10
申请号：US64603
申请日：1979-08-07
申请人： Robert C. Miller
发明人： Robert C. Miller
IPC分类号： G01R21/133 , G01R21/00
CPC分类号： G01R21/133
摘要： Method and meter apparatus for measuring parameters of electrical energy quantities occurring in an electrical power distribution system. The meter apparatus samples a second input signal, which is proportional to one of the voltage and current components of an electrical energy quantity, at predetermined instants, which are a function of unit changes in the magnitude of a first input signal, which is proportional to the time integral of one of the voltage and current components of the electrical energy quantity, to provide instantaneous values of said second input signal. Successive ones of the instantaneous magnitudes of the second input signal are converted to signal representations and accumulated to provide totalized values which are equivalent to the time integral of the product of the ones of the electrical energy components being represented by the first and second input signals over a predetermined period of time and which are proportional to a measured parameter occurring on the electrical distribution system.
摘要翻译： 用于测量电力分配系统中发生的电能数量参数的方法和仪表装置。 仪表装置在预定时刻采样与电能量的电压和电流分量之一成比例的第二输入信号，其是第一输入信号的幅度的单位变化的函数，其与 电能量的电压和电流分量之一的时间积分，以提供所述第二输入信号的瞬时值。 第二输入信号的瞬时幅度中的相继的值被转换为信号表示并累加以提供总和值，其等价于由第一和第二输入信号表示的电能分量的乘积的乘积的时间积分 预定的时间段，并且与在配电系统上发生的测量参数成比例。
-
-
-
-
-
-
-
-
-
搜索结果
173 条记录 (耗时 0.061 秒)
