-
公开(公告)号：US4974487A
公开(公告)日：1990-12-04
申请号：US252551
申请日：1988-10-03
申请人： Yeshayahu S. A. Goldstein , Derek A. Tidman , Rodney L. Burton , Dennis W. Massey , Niels K. Winsor
发明人： Yeshayahu S. A. Goldstein , Derek A. Tidman , Rodney L. Burton , Dennis W. Massey , Niels K. Winsor
IPC分类号： F41B6/00
CPC分类号： F41B6/00
摘要： A projectile is accelerated in a barrel bore by applying a plasma jet to a projectile propelling fluid. The plasma jet is derived from a structure forming a capillary passage having a wall formed by a low molecular weight, dielectric powdery filler or water in many rigid containers, shaped as spheres or straw-like tubes having axes parallel to the passage longitudinal axis. The fluid and jet interact so the fluid is heated by the jet, whereby low atomic weight constituents of the fluid are sufficiently heated to become mixed with the plasma to form a high pressure mixture that is injected into the bore to accelerate the projectile. The fluid is dragged into the plasma during mixing to cool the plasma and form a boundary layer between the plasma and the barrel walls so that the mixture does not cause substantial damage to the walls of the bore. The plasma is energized by applying voltage from an electric pulse source to electrodes at opposite ends of the passage. The pulse has a wave shape and duration for initially igniting the plasma source and for thereafter applying energy to the ignited plasma to control the pressure of the mixture. Initially, the fluid cools the plasma without the mixture developing sufficient pressure to accelerate the projectile appreciably. The wave shape and duration are such that the pressure applied to the projectile remains substantially constant while the projectile is being accelerated through the barrel, as occurs during about one-half of the projectile travel time in the barrel.
摘要翻译： 通过将等离子体射流施加到抛射体推进流体，炮弹在炮筒内加速。 等离子体射流源于形成毛细管通道的结构，该通道具有由许多刚性容器中的低分子量介电粉末填料或水形成的壁，其形状为具有平行于通道纵向轴线的轴的球形或稻草状管。 流体和射流相互作用使得流体被射流加热，由此流体的低原子量组分被充分加热以与等离子体混合以形成注入到孔中的高压混合物以加速射弹。 在混合期间将流体拖入等离子体以冷却等离子体并在等离子体和筒壁之间形成边界层，使得混合物不会对孔的壁造成实质损坏。 通过将来自电脉冲源的电压施加到通道的相对端处的电极来激发等离子体。 脉冲具有用于初始点燃等离子体源的波形和持续时间，并且此后将能量施加到点火等离子体以控制混合物的压力。 最初，流体冷却等离子体，而不会产生足够的压力使混合物明显加速。 波浪形状和持续时间使得当射弹在枪管中的大约一半的射弹行进时间期间发生时，施加到射弹的压力保持基本上恒定，同时射弹被加速通过枪管。
-
公开(公告)号：US4821508A
公开(公告)日：1989-04-18
申请号：US743150
申请日：1985-06-10
IPC分类号： F03H1/00
CPC分类号： F03H1/00 , F03H1/0087
摘要： A plasma electrothermal thruster includes a capillary passage in which a plasma discharge is formed and directed out of an open end of the passage into a supersonic nozzle. Liquid supplied to the capillary passage becomes partially atomized to cool a confining surface of the passage. The plasma discharge is formed as the atomized liquid flows out of the open end into a supersonic equilibrium nozzle. The discharge can have a duration greater than the two way travel time of acoustic energy in the capillary to cause the plasma to flow continuously through the nozzle during the time of the discharge pulse.
摘要翻译： 等离子体电热推进器包括毛细通道，其中形成等离子体放电并且从通道的开口端引导到超音速喷嘴中。 供应到毛细管通道的液体被部分雾化以冷却通道的限制表面。 当雾化液体从开口端流出到超音速平衡喷嘴中时，形成等离子体放电。 放电可以具有大于毛细管中的声能的双向行进时间的持续时间，以在放电脉冲期间使等离子体连续流过喷嘴。
-
公开(公告)号：US4670662A
公开(公告)日：1987-06-02
申请号：US832586
申请日：1986-02-24
CPC分类号： H03K3/57
摘要： A pulse forming network, responsive to a DC power supply, supplies predetermined current waveforms to a load in response to commands from a programmed source. Plural inductors are connected to switches responsive to commands from the programmed source. The switches are controlled to couple the inductors to the DC source to charge the inductors to a predetermined current level that is maintained substantially constant. The predetermined current level in each inductor is supplied to the load by switches controlled by the programmed source so that during successive intervals the predetermined constant current levels from differing numbers of the inductors flow from the inductors to the load. The inductance of each inductor, the load impedance and the duration current is supplied to the load by the inductors are such that the predetermined current level supplied by each inductor to the load is maintained relatively constant.
摘要翻译： 响应于直流电源的脉冲形成网络响应于来自编程的源的命令向负载提供预定的电流波形。 响应于来自编程的源的命令，多个电感器连接到开关。 控制开关以将电感器耦合到DC源，以将电感器充电到保持基本上恒定的预定电流水平。 每个电感器中的预定电流电平由编程源控制的开关提供给负载，使得在连续间隔期间，来自不同数量的电感器的预定恒定电流水平从电感器流向负载。 每个电感器的电感，负载阻抗和持续时间电流由电感器提供给负载使得由每个电感器提供给负载的预定电流水平保持相对恒定。
-
公开(公告)号：US07106885B2
公开(公告)日：2006-09-12
申请号：US09946335
申请日：2001-09-06
申请人： Josef Osterweil , Niels K. Winsor
发明人： Josef Osterweil , Niels K. Winsor
IPC分类号： G06K9/00
CPC分类号： G06T7/593 , G06T7/50 , G06T7/55 , G06T7/70 , G08B21/043 , G08B21/0476 , G08B21/22 , H04N13/158 , H04N13/207 , H04N13/243
摘要： Method and apparatus for analyzing an orientation of a subject. An image of an area that includes a subject to be monitored is captured, so that a model can be produced. A consistency test is then performed on the produced model to determine predetermined features of the subject. In response to a predetermined result of the consistency test, an undesired orientation of the subject is indicated.
-
公开(公告)号：US06215734B1
公开(公告)日：2001-04-10
申请号：US09230992
申请日：1999-05-03
申请人： William M. Moeny , Niels K. Winsor
发明人： William M. Moeny , Niels K. Winsor
IPC分类号： G01V140
摘要： A projector (10) for creating electrohydraulic acoustic and pressure waves comprising an energy source (21) (such as a capacitor) within approximately one meter of an electrode array (23). Larger projectors may be formed by arraying the projectors, and still larger projectors by arraying them.
摘要翻译： 一种用于在电极阵列（23）的大约一米内产生包括能量源（例如电容器）的电液声波和压力波的投影仪（10）。 更大的投影机可以通过排列投影机和更大的投影机排列而形成。
-
公开(公告)号：US4548782A
公开(公告)日：1985-10-22
申请号：US134717
申请日：1980-03-27
CPC分类号： G21B1/23 , Y02E30/122
摘要： An intense, space-charge-neutralized, pulsed ion beam is used to heat a magnetically-confined plasma, such as tokamak plasma, by injecting the ion beam into the plasma along a trajectory that is generally tangential to the confining magnetic field. The intense ion beam is injected into the tokamak before the plasma is fully formed, the remainder of the plasma is formed around the beam, and the beam transfers its energy to the plasma by classical collisions with the electrons and ions of the plasma. Heating of the plasma can be sufficient to produce breakeven or ignition.
摘要翻译： 通过沿着通常与限制磁场相切的轨迹将离子束注入等离子体，使用强烈的空间电荷中和的脉冲离子束来加热磁性约束等离子体，例如托卡马克等离子体。 在等离子体完全形成之前，将强离子束注入到托卡马克中，等离子体的其余部分围绕光束形成，并且光束通过与等离子体的电子和离子的经典碰撞将其能量传递到等离子体。 等离子体的加热足以产生平衡点或点火。
-
公开(公告)号：US4715261A
公开(公告)日：1987-12-29
申请号：US657888
申请日：1984-10-05
申请人： Yeshayahu S. A. Goldstein , Derek A. Tidman , Rodney L. Burton , Dennis W. Massey , Niels K. Winsor
发明人： Yeshayahu S. A. Goldstein , Derek A. Tidman , Rodney L. Burton , Dennis W. Massey , Niels K. Winsor
CPC分类号： F41B6/00
摘要： A projectile is accelerated through a gun barrel bore by a cartridge containing a high temperature, high pressure plasma jet source. The cartridge has a geometry enabling it to be loaded into a breech bore of the gun. The plasma jet is supplied to the rear of the projectile and is derived by a tube having an interior wall forming a capillary passage. A discharge voltage applied between spaced regions along the capillary passage ionizes a dielectric to form a plasma. First and second ends of the passage are respectively open and blocked to enable and prevent the flow of plasma through them. The blocked end closes the breech bore.
摘要翻译： 射弹通过枪管加速，内置高温高压等离子体喷射源。 墨盒具有几何形状，使其能够被装载到枪的后膛孔中。 等离子体射流被提供到射弹的后部，并由具有形成毛细管通道的内壁的管导出。 沿着毛细通道施加在间隔区域之间的放电电压使电介质离子化以形成等离子体。 通道的第一和第二端分别是开放和封闭的，以使等离子体流过它们。 封闭端封闭后膛孔。
-
8.发明授权公开(公告)号：US06567682B1
公开(公告)日：2003-05-20
申请号：US09711966
申请日：2000-11-15
申请人： Josef Osterweil , Niels K. Winsor
发明人： Josef Osterweil , Niels K. Winsor
IPC分类号： A61B505
CPC分类号： A61B5/0059
摘要： An apparatus and method for determining a characteristic of a selected skin lesion. A capture device produces data representing an image of an object. A processing device processes the data to derive a three-dimensional model of the skin lesion, which is stored in a database. A reporting device indicates at least one specific property of the selected skin lesion. The processing device determines a change in at least one specific property of the skin lesion by comparing the three-dimensional model with at least one previously derived three-dimensional model that is stored in the database.
摘要翻译： 一种用于确定所选皮肤损伤特征的装置和方法。 捕获设备产生表示对象的图像的数据。 处理装置处理数据以导出存储在数据库中的皮肤损伤的三维模型。 报告装置指示所选皮肤损伤的至少一个特定属性。 处理装置通过将三维模型与存储在数据库中的至少一个先前导出的三维模型进行比较来确定皮肤损伤的至少一个特定属性的变化。
-
公开(公告)号：US4821509A
公开(公告)日：1989-04-18
申请号：US133154
申请日：1987-12-07
IPC分类号： F03H1/00
CPC分类号： F03H1/0087 , F03H1/0012
摘要： A plasma electrothermal thruster includes a capillary passage in which a plasma discharge is formed and directed out of an open end of the passage into a supersonic nozzle. Liquid supplied to the capillary passage becomes partially atomized to cool a confining surface of the passage. The plasma discharge is formed as the atomized liquid flows out of the open end into a supersonic equilibrium nozzle. The discharge can have a duration greater than the two way travel time of acoustic energy in the capillary to cause the plasma to flow continuously through the nozzle during the time of the discharge pulse.
-
公开(公告)号：US4421713A
公开(公告)日：1983-12-20
申请号：US247420
申请日：1981-03-25
CPC分类号： H05H1/22
摘要： An intense, space-charge-neutralized, pulsed ion beam is used to heat a metically-confined plasma, such as a tokamak plasma, by injecting the ion beam into the plasma along a trajectory that is generally tangential to the confining magnetic field. The ion beam inductively generates a plasma return current so that no net current is produced. As the ion beam drifts in the plasma, the confining magnetic field is transformed into one which can trap the ion beam at the center of the plasma. Once the ion beam is trapped, the plasma return current is cancelled by transformer action to produce a net current which is carried by the ion beam alone. The beam transfers its energy to the plasma by classical collisions with the electrons and ions of the plasma. Heating of the plasma can be sufficient to produce a breakeven condition or ignition.
摘要翻译： 通过沿着通常与限制磁场相切的轨迹将离子束注入等离子体，使用强烈的空间电荷中和的脉冲离子束来加热磁性约束等离子体，例如托卡马克等离子体。 离子束感应地产生等离子体回流电流，使得不产生净电流。 当离子束在等离子体中漂移时，限制磁场被转换成能够将离子束捕获在等离子体中心的磁场。 一旦离子束被捕获，等离子体返回电流就被变压器作用所抵消，以产生仅由离子束承载的净电流。 光束通过与等离子体的电子和离子的经典碰撞将其能量传递到等离子体。 等离子体的加热足以产生盈亏平衡条件或点火。
-
-
-
-
-
-
-
-
-
搜索结果
10 条记录 (耗时 0.015 秒)
