公开(公告)号：US5164919A

公开(公告)日：1992-11-17

申请号：US802796

申请日：1991-12-06

申请人： Michael Scanlon ,  Stephen M. Tenney ,  Nassy Srour ,  James W. Joyce

发明人： Michael Scanlon ,  Stephen M. Tenney ,  Nassy Srour ,  James W. Joyce

IPC分类号： G01H3/00 ,  G10K11/08

CPC分类号： G01H3/00 ,  G10K11/08 ,  Y10S367/901

摘要： A sonar sensor comprising a substantially non-corrodible housing and a fluidic gainblock disposed therein. In addition, one or more fluid-filled laminar proportional amplifiers are arranged either in series or in parallel and contained within the fluidic gainblock. Means are provided to produce a jet within each laminar proportional amplifier, which is then modulated by incoming acoustic signals. The pressure caused by diverting the jet from its equilibrium path is proportional to, but greater than, the incoming acoustic signal. Hydrophones are used to convert the amplified acoustic signal into an electrical signal. In one embodiment, the fluidic gainblock is free-flooded and open to the liquid environment in which it is used, obviating the need for pressure equalization. In another embodiment, the fluidic gainblock is provided with filtering means for prevent the accumulation of sediment within the cavities making up the laminar proportional amplifiers. In yet another embodiment, the fluidic gainblock is a closed-system which recirculates its fluid supply, increasing the sensor's operating life and isolating the laminar proportional amplifiers therein.

摘要翻译： 声纳传感器包括基本上不可腐蚀的壳体和设置在其中的流体增益块。 此外，一个或多个流体填充的层流比例放大器被串联或并联布置并且包含在流体增益块内。 提供了在每个层流比例放大器内产生射流的装置，然后由输入的声信号进行调制。 将射流从平衡路径转移引起的压力与进入的声学信号成比例，但大于输入的声学信号。 水声器用于将放大的声信号转换为电信号。 在一个实施例中，流体增益块是自由溢出的并且对于使用它的液体环境是开放的，消除了对压力平衡的需要。 在另一个实施例中，流体增益块设置有过滤装置，用于防止沉积物堆积在构成层流比例放大器的空腔内。 在另一个实施例中，流体增益块是封闭系统，其循环其流体供应，增加传感器的使用寿命并隔离其中的层流比例放大器。

公开(公告)号：US5076284A

公开(公告)日：1991-12-31

申请号：US607432

申请日：1990-10-23

申请人： James W. Joyce ,  Nassy Srour ,  Michael V. Scanlon ,  Stephen M. Tenney ,  George Mon ,  John P. Gills

发明人： James W. Joyce ,  Nassy Srour ,  Michael V. Scanlon ,  Stephen M. Tenney ,  George Mon ,  John P. Gills

IPC分类号： A61B7/02

CPC分类号： A61B7/023

摘要： A heart-sound monitor and esophageal stethoscope which makes use of fluidicaminar proportional amplifiers (LPAs). These LPA's are used to sense and amplify incoming acoustic pressure signals, such as heart signals. Moreover, the fluidic monitor is able to monitor a fetus heartbeat while eliminating the acoustic interference present from the mother's heartbeat. In this case, the LPA acts not only as an amplifier, but as an acoustic filter as well.

摘要翻译： 一种使用流体层流比例放大器（LPAs）的心音监视器和食管听诊器。 这些LPA用于感测和放大传入的声压信号，例如心脏信号。 此外，流体监测器能够监测胎儿心跳，同时消除母体心跳的声学干扰。 在这种情况下，LPA不仅用作放大器，而且用作声学滤波器。

公开(公告)号：USH1282H

公开(公告)日：1994-02-01

申请号：US474603

申请日：1990-02-05

申请人： James W. Joyce ,  George Mon

发明人： James W. Joyce ,  George Mon

IPC分类号： A61M16/00

CPC分类号： A61M16/022 ,  A61M2016/0027

摘要： A fluidic, volume-cycled respirator circuit comprising a fluidic flowmeter, a tidal volume selection controller and an inlet valve. The flowmeter is connected to the controller through a transmitting means which transmits gas flow frequency signals. Said controller is then connected to the inlet valve, which is connected back to the flowmeter; hence, the respirator circuit is complete. The tidal volume selection controller may operate by either fluidics, electronics, or the combination of the two. The flowmeter facilitates supply of air to the patient. The amount of air supplied is controlled by the tidal volume selection controller which senses inspiration and gas flow frequency. The controller is equipped with a timer back-up system in the event that either the system or the patient fail to respond. The valve is operated at the direction of the tidal volume selection controller. The valve is open during the inspiratory phase and closed during the exhalation phase. The respirator herein overcomes the use of burdensome piston-bellows assemblies, has few moving parts and is relatively small in size. The use of piston-bellows assemblies is avoided by the use of a fluidic oscillator flowmeter.

摘要翻译： 流体体积循环的呼吸器回路包括流体流量计，潮气量选择控制器和入口阀。 流量计通过发送气体流量信号的发送装置连接到控制器。 所述控制器然后连接到入口阀，其连接回流量计; 因此，呼吸器电路是完整的。 潮气量选择控制器可以通过流体，电子设备或两者的组合来操作。 流量计有助于向病人提供空气。 所供应的空气量由感测吸气和气体流量频率的潮气量选择控制器控制。 在系统或患者无法响应的情况下，控制器配备有定时器备份系统。 阀门在潮气量选择控制器的方向运行。 吸气期间阀门打开，呼气期间关闭。 这里的呼吸器克服了繁重的活塞 - 波纹管组件的使用，具有很少的移动部件并且尺寸相对较小。 通过使用流体振荡器流量计来避免使用活塞 - 波纹管组件。

公开(公告)号：US4716936A

公开(公告)日：1988-01-05

申请号：US946479

申请日：1986-12-22

申请人： George Mon ,  James W. Joyce

发明人： George Mon ,  James W. Joyce

IPC分类号： F15C5/00 ,  F15C1/06 ,  F15C1/08

CPC分类号： F15C5/00 ,  Y10T137/2224 ,  Y10T137/2262 ,  Y10T137/8122

摘要： A fluidic system is provided in which the laminar flow operating range haseen increased. The fluidic system uses stacks of laminate plates in which filter means is placed between vent and exhaust laminates for breaking up eddies and flow noise created from supply nozzle and vent areas.

摘要翻译： 提供了一种流体系统，其中层流操作范围已经增加。 流体系统使用堆叠的层压板，其中过滤装置放置在排气和排气层压板之间，用于分解由供应喷嘴和排气区域产生的涡流和流动噪声。

公开(公告)号：US06992614B1

公开(公告)日：2006-01-31

申请号：US10829849

申请日：2004-04-22

申请人： James W. Joyce

发明人： James W. Joyce

IPC分类号： G01S13/32

CPC分类号： G01S13/34 ,  G01S7/352 ,  G01S13/882

摘要： A radar altimeter is provided that includes a transmitter operable to generate a radio signal at a modulation frequency, and transmit the radio signal toward a ground surface for reflection therefrom to thereby propagate a reflected radio signal. The radar altimeter also includes a receiver operable to receive the reflected radio signal, and determine the altitude of the aircraft based on the modulation frequency of the radio signal and a difference frequency derived from the radio signal and the reflected radio signal. The receiver is also operable to control the transmitter so as to vary the modulation frequency of the radio signal based on the altitude of the aircraft. Preferably, the modulation frequency of the radio signal is greater at lower altitudes than at higher altitudes.

摘要翻译： 提供了一种雷达高度计，其包括可操作以产生调制频率的无线电信号的发射机，并将无线电信号发射到地面以进行反射，从而传播反射的无线电信号。 雷达高度计还包括可操作以接收反射的无线电信号的接收机，并且基于无线电信号的调制频率和从无线电信号和反射的无线电信号导出的差频来确定飞行器的高度。 接收机还可操作以控制发射机，以便基于飞行器的高度来改变无线电信号的调制频率。 优选地，无线电信号的调制频率在较低海拔处比在较高海拔处更大。

公开(公告)号：US4100789A

公开(公告)日：1978-07-18

申请号：US819745

申请日：1977-07-28

申请人： James W. Joyce

发明人： James W. Joyce

IPC分类号： G01N7/00 ,  G01N33/00 ,  G01N31/00

CPC分类号： G01N7/00

摘要： A fluidic partial pressure sensor for obtaining a direct indication of the partial pressure of a gas constituent in a mixture relative to a reference gas. A fluidic bridge's geometry is so designed and structured that if the pressure across the bridge is maintained constant, the pressure differential between the two channels thereby becomes directly proportional to the partial pressure of the gas constituent of interest. A typical bridge sensor therefore can provide a direct indication of partial pressure. The geometry of the bridge network is chosen so that the sensor gain constant varies linearly with ambient pressure.

摘要翻译： 一种流体分压传感器，用于获得混合物中气体组分相对于参考气体的分压的直接指示。 流体桥的几何形状是如此设计和结构化的，如果桥上的压力保持恒定，则两个通道之间的压差因此变得与感兴趣的气体成分的分压成正比。 因此，典型的桥式传感器可以提供分压的直接指示。 选择桥网的几何形状，使得传感器增益常数随环境压力线性变化。