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公开(公告)号：US4803996A
公开(公告)日：1989-02-14
申请号：US101812
申请日：1987-09-28
申请人： H. Herbert Peel , Merle E. Converse , William H. McGinnis , Donald J. Shirley , John P. Prudhomme
发明人： H. Herbert Peel , Merle E. Converse , William H. McGinnis , Donald J. Shirley , John P. Prudhomme
IPC分类号： A61B5/0428 , A61B5/0436 , A61B7/04 , A61B5/04
CPC分类号： A61B7/04 , A61B5/04282 , A61B5/0436
摘要： A cardiovascular monitor having improved safety features and data transmission ability. Sensing devices placed on a patient's body, such as electrocardiogram electrodes and phonocardiogram microphones, are electrically isolated from the data recorder and AC powerline, thereby protecting the patient from dangerously high voltages existing in the recorder and the external power source. Isolation amplifiers are employed in the signal conditioning circuitry at the front end of the recorder. Special isolation transformers are also used to prevent ground loop currents between the signal conditioner and the recorder thus minimizing noise due to powerline leakage. Similarly, isolation amplifiers are used during the playback mode between the recorder and a data processor to avoid ground loop currents between the recorder and the processor.
摘要翻译： 心血管监护仪具有改进的安全特征和数据传输能力。 放置在患者身上的感测装置，例如心电图电极和心音图麦克风，与数据记录器和AC电力线电隔离，从而保护患者免受存在于记录器和外部电源中的危险的高电压。 隔离放大器用于记录仪前端的信号调理电路。 特殊的隔离变压器也用于防止信号调节器和录音机之间的接地回路电流，从而将由于电力线泄漏引起的噪音降至最低。 类似地，在记录器和数据处理器之间的回放模式期间使用隔离放大器以避免记录器和处理器之间的接地回路电流。
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公开(公告)号：US08584698B2
公开(公告)日：2013-11-19
申请号：US12937836
申请日：2009-03-30
IPC分类号： F16K31/02
CPC分类号： F01L9/04 , F01L2009/049 , Y10T137/0971 , Y10T137/7761
摘要： An electronic, programmable device for controlling the motion of compressor valve elements, wherein the device receives an incoming signal from a velocity sensor located on a compressor valve; filters, amplifies, and processes the incoming signal by a control algorithm; and responds to the incoming signal by creating an output signal that produces an actuator force that is applied directly to a moving valve element and associated methodology.
摘要翻译： 一种用于控制压缩机阀元件运动的电子可编程装置，其中装置从位于压缩机阀上的速度传感器接收输入信号; 通过控制算法对输入信号进行滤波，放大和处理; 并通过产生输出信号来响应输入信号，该输出信号产生直接施加到移动阀元件的致动器力和相关方法。
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公开(公告)号：US20110023980A1
公开(公告)日：2011-02-03
申请号：US12937836
申请日：2009-03-30
IPC分类号： F16K31/02
CPC分类号： F01L9/04 , F01L2009/049 , Y10T137/0971 , Y10T137/7761
摘要： An electronic, programmable device for controlling the motion of compressor valve elements, wherein the device receives an incoming signal from a velocity sensor located on a compressor valve; filters, amplifies, and processes the incoming signal by a control algorithm; and responds to the incoming signal by creating an output signal that produces an actuator force that is applied directly to a moving valve element and associated methodology.
摘要翻译： 一种用于控制压缩机阀元件运动的电子可编程装置，其中装置从位于压缩机阀上的速度传感器接收输入信号; 通过控制算法对输入信号进行滤波，放大和处理; 并通过产生输出信号来响应输入信号，该输出信号产生直接施加到移动阀元件的致动器力和相关方法。
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公开(公告)号：US4784154A
公开(公告)日：1988-11-15
申请号：US929988
申请日：1986-11-13
CPC分类号： A61B7/04
摘要： An interference resistant biomedical transducer for monitoring the acoustic output of a patient's cardiac or respiratory system which provides a high degree of rejection of acoustic noise and spurious electromagnetic signals. The transducer comprises a piezoelectric diaphragm assembly having electrodes which produce a differential output signal. The transducer housing includes a massive metal disc and a compliant handle which provide a mechanical filter to remove undesired signals such as those related to motion of the patient and ambient acoustic noise.
摘要翻译： 用于监测患者心脏或呼吸系统的声输出的抗干扰生物医学换能器，其提供高度的声学噪声和杂散电磁信号的抑制。 换能器包括具有产生差分输出信号的电极的压电振膜组件。 传感器壳体包括大块金属盘和柔性手柄，其提供机械过滤器以去除不期望的信号，例如与患者运动相关的信号和环境声学噪声。
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公开(公告)号：US4899760A
公开(公告)日：1990-02-13
申请号：US062781
申请日：1987-06-15
IPC分类号： A61B5/022 , A61B5/00 , A61B5/0428 , A61B5/145 , A61B5/1477
CPC分类号： A61B5/14551 , A61B5/0428 , Y10S128/901 , Y10S128/902
摘要： An improved biological signal detector which is extremely sensitive, yet resistant to the effects of high frequency noise. A multiplexed signal representation of a plurality biological signals is demultiplexed by a detector circuit comprising a plurality of switches each of which controls an individual storage network. A switch logic control circuit synchronizes the various switches to close during the time intervals corresponding to the pulse amplitudes representing the particular signal of interest. The amplitude of the alternating component of each of the biological signals is stored in one of the respective storage networks over a number of pulse time intervals. In the preferred embodiment, the storage networks of the detector each have a time constant which is purposely chosen to be substantially longer than the time interval of the pulses. The long time constant of the storage networks allows the detector circuit to track changes in amplitude which manifest themselves over a relatively large number of time intervals, but prevents the detection of high frequency noise signals which may be present during the sampling intervals.
摘要翻译： 一种改进的生物信号检测器，其极度敏感，但耐高频噪声的影响。 多个生物信号的复用信号表示由包括多个开关的检测器电路解复用，每个开关控制各个存储网络。 开关逻辑控制电路使各种开关在对应于表示感兴趣的特定信号的脉冲幅度的时间间隔期间同步闭合。 每个生物信号的交替分量的振幅通过多个脉冲时间间隔存储在相应的存储网络之一中。 在优选实施例中，检测器的存储网络各自具有时间常数，该时间常数被有意地选择为比脉冲的时间间隔更长。 存储网络的长时间常数允许检测器电路跟踪在相对较大数量的时间间隔上表现出来的幅度变化，但是防止在采样间隔期间可能存在的高频噪声信号的检测。
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6.发明授权Directional potential analyzer method and apparatus for detecting and locating leaks in geomembrane liners 失效用于检测和定位土工膜衬里泄漏的定向电位分析仪方法和装置
公开(公告)号：US4725785A
公开(公告)日：1988-02-16
申请号：US810023
申请日：1985-12-17
摘要： A directional potential analyzer method and apparatus using a non-intrusive electrical measurement technique to obtain a precise location of a leak in a geomembrane liner. The method and apparatus can be used for detecting leaks in either a single layer or a two layer geomembrane liner. The directional potential analyzer comprises a differential voltage detection probe which is moved through the liquid with the potential difference between the electrodes on the probe being measured and recorded as a function of azimuthal position of the probe. An initial scan of the liquid impoundment is used as a reference trace showing all of the anomalies of an unfaulted liner. Subsequent traces obtained by rotating the analyzer probe at a later date are processed and compared with the reference trace to determine the occurrence of new anomalies representing leaks in the liner. In an alternate embodiment of the invention, two directional analyzers are employed and a triangulation analysis is used to obtain a more precise location of a leak in the liner.
摘要翻译： 一种使用非侵入式电气测量技术的方向电位分析器方法和装置，以获得在土工膜衬里中的泄漏的精确位置。 该方法和装置可用于检测单层或双层土工膜衬里中的泄漏。 方向电位分析仪包括差分电压检测探针，其被测量并且记录在探针的方位位置的函数上，该探针被探测器中的电极之间的电位差移动通过液体。 使用液体蓄水池的初始扫描作为示出未破坏的衬管的所有异常的参考迹线。 随后通过旋转分析器探头获得的随后痕迹被处理并与参考迹线进行比较，以确定表示衬管中泄漏的新异常的发生。 在本发明的替代实施例中，采用两个方向分析器，并且使用三角测量分析来获得衬套中泄漏的更精确的位置。
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公开(公告)号：US4719407A
公开(公告)日：1988-01-12
申请号：US824440
申请日：1986-01-31
申请人： Merle E. Converse , David W. Shultz
发明人： Merle E. Converse , David W. Shultz
IPC分类号： G01M3/40 , G01N27/416 , G01R27/14 , G01R31/08 , G08B21/00
摘要： An automated search apparatus is disclosed for detecting leaks in liquid impoundments usually defined by a geomembrane layer. A voltage gradient is created within the impoundment by means of a source electrode. The search apparatus contains pairs of electrodes coupled to differential amplifiers which allow plotting of the voltage gradient within the impoundment. The search vessel is controlled via radio telemetry, and its position may be tracked using optical theodolites. A distortion in the equipotential lines associated with the voltage gradient indicates the presence of a leak.
摘要翻译： 公开了一种自动搜索装置，用于检测通常由土工膜层限定的液体蓄水池中的泄漏。 通过源电极在蓄水池内产生电压梯度。 搜索装置包含耦合到差分放大器的电极对，其允许在蓄水池内绘制电压梯度。 搜索船通过无线电遥测进行控制，其位置可以使用光学经纬仪跟踪。 与电压梯度相关的等电位线的失真表明存在泄漏。
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公开(公告)号：US4390828A
公开(公告)日：1983-06-28
申请号：US359021
申请日：1982-03-17
CPC分类号： H02J7/0091 , H02J7/008
摘要： A battery charger circuit having a temperature-dependent constant voltage region, a constant current region, and a power dissipation limiting current "foldback" region.
摘要翻译： 具有温度依赖恒定电压区域，恒定电流区域和功率耗散限制电流“折返”区域的电池充电器电路。
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公开(公告)号：US4335345A
公开(公告)日：1982-06-15
申请号：US195666
申请日：1980-10-09
申请人： Merle E. Converse
发明人： Merle E. Converse
CPC分类号： H02H7/1213 , H02M3/156 , H02M2001/0009
摘要： A current limiting circuit for a switching regulator comprising a current sensing means operably connected to the positive terminal of a source of unregulated power and switching means operably connecting the positive terminal of said power source to the shut down input signal position of the switching regulator. When said current sensing means detects current in the positive terminal exceeding a predetermined value, the circuit of the present invention causes the switching regulator to adjust downward its duty cycle thereby preventing damage to the switching regulator due to current overload.
摘要翻译： 一种用于开关调节器的限流电路，包括可操作地连接到不稳定电源的正极端子的电流感测装置和可操作地将所述电源的正极端子连接到开关调节器的关闭输入信号位置的开关装置。 当所述电流检测装置检测正端子中的电流超过预定值时，本发明的电路使得开关调节器向下调整其占空比，从而防止由于电流过载而对开关调节器的损坏。
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10.发明授权Method and apparatus for locating leaks in a multiple layer geomembrane liner 失效用于定位多层土工膜衬里的泄漏的方法和装置
公开(公告)号：US4740757A
公开(公告)日：1988-04-26
申请号：US934640
申请日：1986-11-25
申请人： Merle E. Converse , Thomas E. Owen
发明人： Merle E. Converse , Thomas E. Owen
摘要： A leak detection and location method and apparatus for detection of perforations in a obscure geomembrane liner is set forth. In a typical application, upper and lower liners are positioned contiguous to one another and a conducting liquid is placed between them. In the event a tear or perforation is formed in the lower liner, a current flow path is established from a power supply and conductors connected to the power supply. The current flow path extends through the liquid to the leak. Because of the liquid path through the liner, electric current will flow through the perforation and establish an associated magnetic field in the near vicinity of the leak. Magnetic sensors are then swept across the surface of or through the impounded liquid above the liners to indicate such magnetic field variations and the locations of such perturbations correspond to the locations of the leak perforations.
摘要翻译： 阐述了一种用于检测模糊土工膜衬套中的穿孔的泄漏检测和定位方法和装置。 在典型的应用中，上部和下部衬里彼此相邻地定位并且在它们之间放置导电液体。 在下层衬板中形成撕裂或穿孔的情况下，从连接到电源的电源和导体建立电流流路。 当前的流动路径延伸穿过液体泄漏。 由于通过衬套的液体路径，电流将流过穿孔，并在泄漏附近建立相关联的磁场。 然后将磁性传感器扫过穿过衬垫上方的被阻塞液体的表面，以指示这种磁场变化，并且这种扰动的位置对应于泄漏穿孔的位置。
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