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1. 发明授权

US06888538B2 Position sensor 失效
标题翻译：位置传感器
公开(公告)号：US06888538B2
公开(公告)日：2005-05-03
申请号：US10108266
申请日：2002-03-28
申请人： David T. E. Ely , Andrew N. Dames
发明人： David T. E. Ely , Andrew N. Dames
IPC分类号： G06F3/046 , G01D5/20 , G06F1/16 , G06F3/0354 , G06F3/041 , G09G5/00
CPC分类号： G06F3/041 , G01D5/2073 , G01D5/208 , G06F1/1626 , G06F1/1643 , G06F3/03545 , G06F3/046
摘要： A low cost x-y digitising system is provided for use in consumer electronic devices, such as portable digital assistants, mobile telephones, web browsers and the like. The digitiser includes a resonant stylus, an excitation winding for energising the resonant stylus and a set of sensor windings for sensing the signal generated by the stylus, from which the x-y position of the stylus is determined.
摘要翻译：提供低成本的x-y数字化系统用于消费电子设备，例如便携式数字助理，移动电话，网络浏览器等。数字转换器包括谐振触控笔，用于激励谐振触控笔的激励绕组和用于感测由触针产生的信号的一组传感器绕组，触针的x-y位置从该触针确定。

2. 发明授权

US06489899B1 Position detector 有权
标题翻译：位置检测器
公开(公告)号：US06489899B1
公开(公告)日：2002-12-03
申请号：US09627423
申请日：2000-07-27
申请人： David T. E. Ely , Ross P. Jones , James M. C. England , Alexander W. McKinnon , Robert M. Pettigrew , Andrew N. Dames , Andrew R. L. Howe
发明人： David T. E. Ely , Ross P. Jones , James M. C. England , Alexander W. McKinnon , Robert M. Pettigrew , Andrew N. Dames , Andrew R. L. Howe
IPC分类号： H03M1100
CPC分类号： G06F3/041 , G01D5/2073 , G01D5/208 , G06F3/03545 , G06F3/046 , G06F2203/04101
摘要： A position detector is provided for detecting the relative movement of first and second members which are mounted for relative movement along a measuring path. One of the members comprises a magnetic field generator for generating a magnetic field and the other member comprises first and second conductors which are inductively coupled to said magnetic field generator. The arrangement of the first and second conductors and the magnetic field generator is such that output signals are generated in a first and second receive circuits whose position varies with the relative movement between the two members. In addition to carrying information relating to the relative position between the two members, the signals induced in the receive circuits also comprise information defining the relative orientation of the two movable members, and by suitable processing of the received signals the relative orientation of the two members can also be determined. In a preferred form of the invention, the system operates to define the relative position and orientation of the two movable members in first and second directions from which the relative orientation of the two members in a plane containing the two directions can be determined. The signals induced in the receive circuits can also be processed to give an indication of the gap between the two circuits and to provide an indication of the full relative orientation of the two members.
摘要翻译：提供一种位置检测器，用于检测沿测量路径相对运动安装的第一和第二构件的相对运动。其中一个构件包括用于产生磁场的磁场发生器，另一个构件包括感应耦合到所述磁场发生器的第一和第二导体。第一和第二导体和磁场发生器的布置使得输出信号在其位置随着两个构件之间的相对运动而变化的第一和第二接收电路中产生。除了承载与两个构件之间的相对位置有关的信息之外，在接收电路中感应的信号还包括限定两个可移动构件的相对取向的信息，并且通过适当处理接收到的信号，两个构件的相对取向也可以确定。在本发明的优选形式中，系统操作以限定两个可移动构件在第一和第二方向上的相对位置和取向，从该第一和第二方向可以确定两个构件在包含两个方向的平面中的相对取向。在接收电路中感应的信号也可以被处理以给出两个电路之间的间隙的指示并且提供两个构件的完全相对取向的指示。

3. 发明授权

US5621316A Apparatus for measuring the positions of plural movable members each associated with a respective magnetorestrictive element 失效
标题翻译：用于测量每个与相应的磁致伸缩元件相关联的多个可移动部件的位置的装置
公开(公告)号：US5621316A
公开(公告)日：1997-04-15
申请号：US75583
申请日：1993-06-15
申请人： Andrew N. Dames , Peter J. Hyde
发明人： Andrew N. Dames , Peter J. Hyde
IPC分类号： G01B17/00 , G01D20060101 , G01D5/14 , G01D5/48 , G01F15/06 , G01V15/00 , G06F17/40 , G06K7/08 , G06M1/274 , G07C9/00 , G08C19/00 , G01B7/14
CPC分类号： G01F15/063 , G01D5/14 , G01D5/485 , G01F15/066 , G01V15/00 , G06K7/086 , G06M1/274 , G07C9/00111
摘要： Apparatus for indicating the value of a variable comprising first and second members moveable relative to each other as a function of said variable, a plurality of elements of a first type on one of said members, at least one element of a second type on the other of said members, one of said types being magnetostrictive and the other being operative to produce a magnetic bias field, said elements being arranged so that as said first and second members move relative to each other different ones of said plurality of elements of said first type magnetically interact with said at least one element of said second type such that, for different positions of said members, said interaction causes magnetostrictive resonance at different frequencies in response to an alternating interrogating magnetic field at said different frequencies.
摘要翻译： PCT No.PCT / GB92 / 00012 Sec。 371日期：1993年6月15日 102（e）日期1993年6月15日PCT提交1992年1月3日PCT公布。出版物WO92 / 12401 日期1992年7月23日用于指示包括第一和第二构件的变量的值的装置作为所述变量的函数相对于彼此可移动，在所述构件之一上的第一类型的多个元件，第二类型在所述构件中的另一个上，所述类型中的一种类型是磁致伸缩的，另一种类型可操作地产生磁偏置场，所述元件被布置成使得当所述第一和第二构件相对于彼此移动时，所述第一类型的元件与所述第二类型的所述至少一个元件磁相互作用，使得对于所述构件的不同位置，所述相互作用响应于所述不同频率处的交替询问磁场而在不同频率处引起磁致伸缩共振。

4. 发明授权

US06522128B1 Position sensor having compact arrangement of coils 有权
标题翻译：位置传感器具有紧凑的线圈排列
公开(公告)号：US06522128B1
公开(公告)日：2003-02-18
申请号：US09529387
申请日：2000-06-08
申请人： David T. F. Ely , Andrew N. Dames
发明人： David T. F. Ely , Andrew N. Dames
IPC分类号： G01B730
CPC分类号： G01D5/204 , G01B7/30 , H05K1/165
摘要： A transducer is provided for use in a position sensor which senses the position of two relatively movable members. In one form, the transducer has a plurality of sensor windings having a number of loops arranged in succession and connected in series so that signals induced in adjacent loops by a common electromagnetic field oppose each other and an excitation winding having at least one loop super-imposed on but electrically isolated from the loops of the sensor windings.
摘要翻译：传感器被提供用于感测两个相对移动的构件的位置的位置传感器。在一种形式中，换能器具有多个传感器绕组，其具有连续布置并串联连接的多个环，使得通过公共电磁场在相邻环路中感应的信号彼此相对，并且激励绕组具有至少一个环路超导，施加在传感器绕组的环上但与电隔离。

5. 发明授权

US06310309B1 Methods of analysis/separation 失效
标题翻译：分析/分离方法
公开(公告)号：US06310309B1
公开(公告)日：2001-10-30
申请号：US09266806
申请日：1999-03-12
申请人： Colin D. Ager , Andrew N. Dames , Duncan R. Purvis , Nicholas A. Safford
发明人： Colin D. Ager , Andrew N. Dames , Duncan R. Purvis , Nicholas A. Safford
IPC分类号： B03C700
CPC分类号： B03C5/028
摘要： Particles are separated according to their dielectrophoretic characteristics and electrorotation characteristics by the use of a travelling wave separation in which they flow from a departure point at an inlet (18) towards at least two destinations at outlets (16, 20) and are deflected toward one or other outlet according to their characteristics by a travelling wave field set up on an array of electrodes, each electrode running generally in the direction of flow.
摘要翻译：根据它们的介电电泳特性和电刺激特性，通过使用行进波分离将颗粒分离，其中它们从入口（18）的出发点朝向出口（16,20）处的至少两个目的地流动，并且朝向一个或其他出口根据其特性通过设置在电极阵列上的行波场，每个电极通常沿流动方向延伸。

6. 发明授权

US6124708A Position detection using a spaced apart array of magnetic field generators and plural sensing loop circuits offset from one another in the measurement direction 有权
标题翻译：使用间隔开的磁场发生器阵列和在测量方向彼此偏移的多个感测回路电路的位置检测
公开(公告)号：US6124708A
公开(公告)日：2000-09-26
申请号：US77108
申请日：1998-09-25
申请人： Andrew N. Dames
发明人： Andrew N. Dames
IPC分类号： G01D5/20 , G01B7/02 , G01B7/14 , G08C19/06
CPC分类号： G01D5/2053
摘要： A sensor head is provided for use in a apparatus for indicating the position of a movable member relative to a fixed member. It has two multi-turn sensor windings, each including repetitive pattern of series connected alternate sense loops of conductor. One sensor winding is in spatial phase quadrature with the other sensor winding, and the arrangement of the windings is such that the mid points of the sensor windings coincide. The sensor head is particularly suited for use in indicating the position of a movable member relative to a fixed member as it is relatively insensitive to longitudinal tilt relative to the other member.
摘要翻译： PCT No.PCT / GB96 / 02896 Sec。 371日期：1998年9月25日 102（e）1998年9月25日PCT PCT 1996年11月25日PCT公布。公开号WO97 / 19323 日期1997年5月29日传感器头被提供用于指示可动构件相对于固定构件的位置的装置。它具有两个多圈传感器绕组，每个绕组包括串联连接的导体的交替感测环路的重复模式。一个传感器绕组与另一个传感器绕组处于空间相位正交，并且绕组的布置使得传感器绕组的中点重合。传感器头特别适于用于指示可移动部件相对于固定部件的位置，因为它相对于另一个部件的纵向倾斜度相对不敏感。

7. 发明授权

US6059950A Travelling wave particle separation apparatus 失效
标题翻译：行波颗粒分离装置
公开(公告)号：US6059950A
公开(公告)日：2000-05-09
申请号：US949322
申请日：1997-10-03
申请人： Andrew N. Dames , Nicholas A. Safford
发明人： Andrew N. Dames , Nicholas A. Safford
IPC分类号： B03C5/02 , G01N27/26 , G01N27/447
CPC分类号： B03C5/028
摘要： Travelling wave particle separation apparatus is provided having a flat spiral of electrodes (1,2,3,4) or a helix of similar electrodes on a cylindrical former. Only four electrical connections need to be made.
摘要翻译：行波粒子分离装置具有扁平螺旋形电极（1,2,3,4）或类似电极的螺旋形圆柱形成形器。只需要四个电气连接。

8. 发明授权

US5386714A Resonant cavity gas density sensor 失效
标题翻译：谐振腔密度传感器
公开(公告)号：US5386714A
公开(公告)日：1995-02-07
申请号：US75576
申请日：1993-06-22
申请人： Andrew N. Dames
发明人： Andrew N. Dames
IPC分类号： G01N9/00 , G01N29/036 , G01N29/02 , G01L9/08 , G01N4/00
CPC分类号： G01N9/002 , G01N29/036 , G01N2009/004 , G01N2291/02818
摘要： A density sensor comprises a cavity arranged to receive the gas whose density is to be sensed. The cavity is divided into two chambers by a flexibly mounted diaphragm. A piezoelectric excitation device at one end of the cavity is used to excite the gas in the cavity into resonant vibration in a mode having an anti-node at the diaphragm, which causes the diaphragm to vibrate with the gas. Another piezoelectric device senses the vibration, whose frequency is a function of the known mass of the diaphragm and the density and speed of sound in the gas. This last parameter can be sensed by exciting the gas in the cavity into resonant vibration in a second mode having a node at the diaphragm, so that the diaphragm does not take part in the vibration. Alternatively, it can be sensed by providing a second cavity, also arranged to receive the gas but not having a diaphragm, and resonantly vibrating the gas in the second cavity.
摘要翻译： PCT No.PCT / GB91 / 02156 Sec。 371日期：1993年7月22日 102（e）日期1993年7月22日PCT 1991年12月5日PCT公布。出版物WO92 / 日期：1992年7月9日。密度传感器包括被布置成接收其感测密度的气体的空腔。通过灵活安装的隔膜将空腔分成两个腔室。空腔一端的压电激励装置用于将空腔中的气体以在隔膜处具有反节点的模式激发为共振振动，这导致隔膜与气体振动。另一个压电装置感测振动，其频率是已知质量的函数以及气体中声音的密度和速度的函数。可以通过将空腔中的气体激励成具有在隔膜处的节点的第二模式的共振振动来感测最后的参数，使得隔膜不参与振动。或者，可以通过提供第二空腔来感测，该第二腔也布置成接收气体但不具有隔膜，并且在第二空腔中共振地振动气体。

9. 发明授权

US06980134B2 Signal processing apparatus and method 失效
标题翻译：信号处理装置及方法
公开(公告)号：US06980134B2
公开(公告)日：2005-12-27
申请号：US10160236
申请日：2002-06-04
申请人： David T. Ely , Andrew N. Dames
发明人： David T. Ely , Andrew N. Dames
IPC分类号： G01D5/244 , G06F3/033 , H02P6/16 , H03M1/64 , H03M11/00
CPC分类号： H03M1/645 , G01D5/244 , G01D5/24461 , G01D5/24476 , G01D5/2448 , G06F3/03545 , H02P6/16
摘要： Processing circuitry is provided for processing signals received from, for example, sense coils forming part of a position encoder used to encode the relative positions of two relatively movable members. The position encoder is such that each of the plurality of signals from the sense coils varies sinusoidally with the relative position of the members but out of phase with respect to each other. The processing circuitry comprises mixers for multiplying each of the received signals with one of a corresponding plurality of periodic time varying signals, each having the same predetermined period and a different predetermined phase, and an adder for adding the signals from the mixers. The phase of the mixing signals are chosen so that the output signals from the adder contains a single periodic component having the predetermined period whose phase varies with the relative position of the two members. Preferably, a reference channel is provided in order to allow for compensation of common phase errors in both channels. The period time varying signals multiplied with each of the signals from the position encoder preferably comprise a two or three level square wave signal having a number of transitions designed to reduce the low order harmonic content of the mixing signals.
摘要翻译：处理电路被提供用于处理从例如形成用于编码两个相对可动构件的相对位置的位置编码器的一部分的感测线圈接收的信号。位置编码器使得来自感测线圈的多个信号中的每个信号随着构件的相对位置而正弦地变化，而是相对于彼此而异相。处理电路包括用于将每个接收信号与相应的多个周期性时变信号中的一个相乘的混频器，每个具有相同的预定周期和不同的预定相位，以及用于将来自混频器的信号相加的加法器。选择混合信号的相位，使得来自加法器的输出信号包含具有相位随着两个部件的相对位置而变化的预定周期的单个周期性分量。优选地，提供参考通道以便允许补偿两个通道中的共同相位误差。与来自位置编码器的每个信号相乘的周期时变信号优选地包括具有多个转换的二或三电平方波信号，其被设计为减少混频信号的低次谐波含量。

10. 发明授权

US6118271A Position encoder using saturable reactor interacting with magnetic fields varying with time and with position 失效
标题翻译：位置编码器使用可饱和电抗器与随时间和位置变化的磁场相互作用
公开(公告)号：US6118271A
公开(公告)日：2000-09-12
申请号：US51724
申请日：1998-05-06
申请人： David T. Ely , Andrew N. Dames , Edward G. Colby
发明人： David T. Ely , Andrew N. Dames , Edward G. Colby
IPC分类号： G01B7/30 , G01B7/00 , G01D5/20 , G01D5/245 , H01F13/00
CPC分类号： G01D5/2046 , H01F13/003
摘要： A position encoder is provided for indicating the relative position between first and second relatively movable members. One of the members carries a multi-pole magnetic scale which generates a magnetic field whose magnitude and direction vary with position and the other member carries at least one sense conductor. A saturable magnetic element is located in the positionally varying magnetic field of the magnetic scale and an excitation winding is provided which, when energized, generates a magnetic filed which interacts with the positionally varying magnetic field to cause different portions of the saturable magnetic element to saturate and desaturate at different times. The arrangement of the sense conductor is such that as the magnetic element is driven into and out of saturation, it outputs a signal which is indicative of the position of the magnetic scale relative to the sense conductor.
摘要翻译： PCT No.PCT / GB96 / 02560 Sec。 371日期：1998年4月17日 102（e）日期1998年4月17日PCT提交1996年10月17日PCT公布。第WO97 / 14935号公报日期1997年04月24日提供了一种用于指示第一和第二相对移动部件之间的相对位置的位置编码器。其中一个构件承载多极磁标，其产生磁场，其大小和方向随着位置而变化，而另一个构件承载至少一个感测导体。可饱和磁性元件位于磁标度的位置变化的磁场中，并且提供激励绕组，其在通电时产生与位置变化的磁场相互作用的磁场，以使可饱和磁性元件的不同部分饱和并在不同时间去饱和。感测导体的布置使得当磁性元件被驱入和流出饱和状态时，其输出表示磁标尺相对于感测导体的位置的信号。

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