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公开(公告)号：US07208945B2
公开(公告)日：2007-04-24
申请号：US10492646
申请日：2002-03-14
申请人： Ross Peter Jones , Richard Alan Doyle , Mark Anthony Howard , David Alun James , Darran Kriet , Colin Stuart Sills
发明人： Ross Peter Jones , Richard Alan Doyle , Mark Anthony Howard , David Alun James , Darran Kriet , Colin Stuart Sills
CPC分类号： G01D5/2073 , D06F39/003 , D06F39/087
摘要： There is described a sensor comprising an excitation winding, a signal generator operable to generate an excitation signal and arranged to apply the generated excitation signal to the excitation winding, a sensor winding electromagnetically coupled to the excitation winding and a signal processor operable to process a periodic electric signal generated in the sensor winding when the excitation signal is applied to the excitation winding by the signal generator to determine a value of a sensed parameter. The excitation signal comprises a periodic carrier signal having a first frequency modulated by a periodic modulation signal having a second frequency, the first frequency being greater than the second frequency. In this way, the sensor is well suited to using digital processing techniques both to generate the excitation signal and to process the signal induced in the sensor windings. In an embodiment, the sensor is used to detect the relative position of two members. In other embodiments, the sensor is used to detect environmental factors such as temperature and humidity.
摘要翻译： 描述了一种传感器，其包括激励绕组，信号发生器，其可操作以产生激励信号并被布置成将产生的激励信号施加到激励绕组，电磁耦合到激励绕组的传感器绕组和可操作以处理周期性的信号处理器 当激励信号由信号发生器施加到激励绕组以确定感测参数的值时，在传感器绕组中产生的电信号。 激励信号包括具有由具有第二频率的周期性调制信号调制的第一频率的周期性载波信号，第一频率大于第二频率。 以这种方式，传感器非常适合于使用数字处理技术来产生激励信号并处理在传感器绕组中感应的信号。 在一个实施例中，传感器用于检测两个构件的相对位置。 在其他实施例中，传感器用于检测诸如温度和湿度的环境因素。
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公开(公告)号：US07319319B2
公开(公告)日：2008-01-15
申请号：US11677803
申请日：2007-02-22
申请人： Ross Peter Jones , Richard Allen Doyle , Mark Anthony Howard , David Alun James , Darran Kreit , Colin Stuart Sills
发明人： Ross Peter Jones , Richard Allen Doyle , Mark Anthony Howard , David Alun James , Darran Kreit , Colin Stuart Sills
CPC分类号： G01D5/2073 , D06F39/003 , D06F39/087
摘要： There is described a sensor comprising an excitation winding, a signal generator operable to generate an excitation signal and arranged to apply the generated excitation signal to the excitation winding, a sensor winding electromagnetically coupled to the excitation winding and a signal processor operable to process a periodic electric signal generated in the sensor winding when the excitation signal is applied to the excitation winding by the signal generator to determine a value of a sensed parameter. The excitation signal comprises a periodic carrier signal having a first frequency modulated by a periodic modulation signal having a second frequency, the first frequency being greater than the second frequency. In this way, the sensor is well suited to using digital processing techniques both to generate the excitation signal and to process the signal induced in the sensor windings. In an embodiment, the sensor is used to detect the relative position of two members. In other embodiments, the sensor is used to detect environmental factors such as temperature and humidity.
摘要翻译： 描述了一种传感器，其包括激励绕组，信号发生器，其可操作以产生激励信号并被布置成将产生的激励信号施加到激励绕组，电磁耦合到激励绕组的传感器绕组和可操作以处理周期性的信号处理器 当激励信号由信号发生器施加到激励绕组以确定感测参数的值时，在传感器绕组中产生的电信号。 激励信号包括具有由具有第二频率的周期性调制信号调制的第一频率的周期性载波信号，第一频率大于第二频率。 以这种方式，传感器非常适合于使用数字处理技术来产生激励信号并处理在传感器绕组中感应的信号。 在一个实施例中，传感器用于检测两个构件的相对位置。 在其他实施例中，传感器用于检测诸如温度和湿度的环境因素。
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公开(公告)号：US07514919B2
公开(公告)日：2009-04-07
申请号：US10531591
申请日：2003-10-15
CPC分类号： G01D5/204 , G01D5/2073
摘要： A sensor for sensing a parameter such as position, comprises: (i) an excitation winding for example coils (7, 9) in quadrature; (ii) a signal generator (41, 42, 43) operable to generate an excitation signals and arranged to apply the generated excitation signal to the excitation winding; (iii) a sense coil (11) that can be electromagnetically coupled to the excitation winding such that, in response to the excitation signal being applied to the excitation winding by the signal generator, a periodic electric signal is generated in the sense coil that is indicative of the value of the parameter to be measured by the sensor; and (iv) a signal processor (108) operable to process the periodic electric signal generated in the sensor winding to determine a value representative of the parameter being measured. The signal processor may be arranged to generate a second signal (f1) at a frequency slightly different from that of the excitation signal, and to mix the second signal with the signal received from the sense coil to generate a third signal having a frequency component (f0−f1) equal to the difference between the frequency of the excitation signal and that of the second signal. The processing unit then determines the parameter from the phase of the third signal.
摘要翻译： 用于感测诸如位置的参数的传感器包括：（i）例如正交的线圈（7,9）的励磁绕组; （ii）可操作以产生激励信号并被布置成将所产生的激励信号施加到激励绕组的信号发生器（41,42,43）; （iii）感测线圈（11），其可以与激励绕组电磁耦合，使得响应于由信号发生器施加到激励绕组的激励信号，在感测线圈中产生周期性电信号，该感应线圈 表示由传感器测量的参数的值; 和（iv）信号处理器（108），其可操作以处理在所述传感器绕组中产生的所述周期性电信号，以确定表示所测量的参数的值。 信号处理器可以被布置成以与激励信号的频率稍微不同的频率产生第二信号（f1），并且将第二信号与从感测线圈接收的信号混合以产生具有频率分量（ f0-f1）等于激励信号的频率与第二信号的频率之差。 然后，处理单元从第三信号的相位确定参数。
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公开(公告)号：US07298137B2
公开(公告)日：2007-11-20
申请号：US10531499
申请日：2003-10-16
IPC分类号： G01B7/14
CPC分类号： G01D5/2086 , G01D5/2093
摘要： There is described an inductive position sensor in which a signal generator applies a excitation signal to an excitation winding formed on a first member, the excitation winding being electromagnetically coupled to at least two resonant circuits formed on a second member which are spaced from each other along a measurement path. The excitation windings are shaped so that the electromagnetic coupling between the exciting winding and each of the resonators varies along the measurement path. In this way, by applying an excitation signal to the excitation winding, respective different signals are induced in the resonators which depend upon the relative position of the first and second members.
摘要翻译： 描述了一种感应位置传感器，其中信号发生器向形成在第一构件上的激励绕组施加激励信号，激励绕组电磁耦合到形成在第二构件上的至少两个谐振电路，该谐振电路彼此间隔开 测量路径。 激励绕组的形状使得励磁绕组和每个谐振器之间的电磁耦合沿测量路径变化。 以这种方式，通过向激励绕组施加激励信号，在谐振器中感应出相应的不同信号，这取决于第一和第二部件的相对位置。
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公开(公告)号：US06838873B2
公开(公告)日：2005-01-04
申请号：US10483099
申请日：2002-10-24
CPC分类号： G01F23/164 , D06F39/003 , D06F39/087 , G01D5/2073 , G01S5/0247
摘要： A Position Sensor comprises: one or more excitation windings; a signal generator adapted to apply excitation signals to the or each excitation winding; tag means displaceable relative to said excitation windings; one or more sensor windings electromagnetically coupled to said excitation windings such that in response to said excitation signals being applied to said excitation windings, there is generated sensed signal in the or each sensor winding; and a signal processor adapted to process said sensed signals to determine the position of said tag means in any location in the X, Y and Z planes essentially in accordance with phase values or in accordance with phase values and amplitude values.
摘要翻译： 位置传感器包括：一个或多个励磁绕组; 信号发生器，适于向所述或每个激励绕组施加激励信号; 标签装置相对于所述励磁绕组可移位; 电磁耦合到所述励磁绕组的一个或多个传感器绕组，使得响应于所述激励信号被施加到所述励磁绕组，在所述传感器绕组中或每个传感器绕组中产生感测信号; 以及信号处理器，其适于处理所述感测信号，以基本上根据相位值或根据相位值和振幅值来确定所述标签装置在X，Y和Z平面中的任何位置的位置。
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6.发明申请公开(公告)号：US20080262628A1
公开(公告)日：2008-10-23
申请号：US10585722
申请日：2005-01-12
申请人： Peter Georg Laitenberger , Valerie Anne Scott , Dominic George Webber , David Martin Pooley , David Alun James , Thiemo Arnim Blank
发明人： Peter Georg Laitenberger , Valerie Anne Scott , Dominic George Webber , David Martin Pooley , David Alun James , Thiemo Arnim Blank
IPC分类号： A61F2/86
CPC分类号： A61F2/915 , A61F2/88 , A61F2/91 , A61F2002/91508 , A61F2002/91516 , A61F2002/91525 , A61F2002/91541 , A61F2002/91558 , A61F2002/91591 , A61F2220/0033 , A61F2220/005 , A61F2220/0058 , A61F2230/0054 , A61F2250/0045
摘要： The present invention relates to an implant 100 which comprises a plurality of electrically-conductive closed loops (300A, 300B, 300C, 300D; 120A, 120B, 120C, 120D each constituted from a plurality of loop portions such as struts (400, 500). The loops together form apertured walls of a cage with an interior volume, and the portions in any one said loop providing electrically-conductive pathways within which eddy currents are liable to be induced when the implant is subjected to an time-dependent external magnetic field, with each said loop comprising at least first and second said pathways. The implant is characterized in that the first and second pathways are arranged such that, in any particular magnetic field, the direction of the eddy current that would be induced in the second pathway is the reverse of the direction of the eddy current that would be induced in the first pathway, so as to mitigate the tendency of the implant to function in said magnetic field as a Faraday cage.
摘要翻译： 本发明涉及一种植入物100，其包括多个导电闭合环（300A，300B，300C，300D; 120A，120B，120C，120D，各自由多个环部分 这些环路一起形成具有内部容积的保持架的多孔壁，并且任何一个所述环路中的部分提供导电通路，其中当植入物经受时易于引起涡流 所述植入物的特征在于，所述第一和第二通路被布置成使得在任何特定的磁场中，所述涡流的方向 将在第二路径中诱导的是与在第一路径中诱发的涡流的方向相反，以便减轻植入物在所述磁场中作为法拉第的趋势 y笼子
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公开(公告)号：US20080204116A1
公开(公告)日：2008-08-28
申请号：US11573106
申请日：2005-08-09
申请人： David Alun James
发明人： David Alun James
IPC分类号： H03K17/945
CPC分类号： G01D5/2093 , G01D5/208
摘要： There is described a sensor for sensing the parameter, the sensor comprising a transmit aerial, an intermediate coupling element, a receive aerial electromagnetically coupled to the transmit aerial via the intermediate coupling element, a signal generator operable to generate a periodic excitation signal at a first frequency, and arranged to apply the generated excitation signal to the transmit aerial in order to generate a sense signal in the receive aerial indicative of the value of the parameter to be measured and a signal processor operable to process the signal induced in the receive aerial to determine a value representative of the parameter being measured. The intermediate coupling element includes a frequency shifter which, in response to the periodic excitation signal being applied to the transmit aerial, generates a sense signal in the receive aerial having a signal component at a second frequency which is different from the first frequency, and the signal processor is operable to process the signal at the second frequency to determine the value representative of the parameter being measured.
摘要翻译： 描述了一种用于感测参数的传感器，该传感器包括发射天线，中间耦合元件，经由中间耦合元件电磁耦合到发射天线的接收空中;信号发生器，其可操作以在第一 并且被布置成将所产生的激励信号施加到发射天线，以便在接收天线中产生指示要测量的参数的值的感测信号，以及信号处理器，可操作以处理在接收天线中感应的信号 确定代表所测量参数的值。 中间耦合元件包括频移器，其响应于施加到发射天线的周期性激励信号，在接收天线中产生具有与第一频率不同的第二频率的信号分量的感测信号，并且 信号处理器可操作以处理在第二频率处的信号，以确定表示所测量参数的值。
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公开(公告)号：US5757637A
公开(公告)日：1998-05-26
申请号：US545851
申请日：1996-06-28
CPC分类号： H02M7/1623 , H02J3/26 , H02M7/23 , Y02E40/50
摘要： A power converter including a star converter module network and a star resistive network. A feedback network monitors the voltage difference between the nodes of the star converter module network and the star resistive network, and provides a signal for each phase of an AC supply corresponding to the voltage difference. An output sensing means senses the output voltage across output terminals and produces a demand signal based on a comparison of the output voltage with a required value. A controller produces a control signal based upon this comparison for each phase, and the control signal is used to control a corresponding converter module. Applications include power converters for supplying an isolated supply from a multi-phase main supply not having a neutral connection.
摘要翻译： PCT No.PCT / NZ94 / 00044 Sec。 371日期：1996年6月28日 102（e）1996年6月28日PCT PCT 1994年5月11日PCT公布。 WO94 / 27357 PCT公开 日期：1994年11月24日电源转换器包括星形转换器模块网络和星形电阻网络。 反馈网络监测星形转换器模块网络和星形电阻网络的节点之间的电压差，并且为对应于电压差的AC电源的每个相位提供信号。 输出感测装置感测输出端子两端的输出电压，并根据输出电压与所需值的比较产生需求信号。 控制器基于每个相位的这种比较器产生控制信号，并且控制信号用于控制相应的转换器模块。 应用包括用于从不具有中性连接的多相主电源提供隔离电源的电力转换器。
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公开(公告)号：US20100039682A1
公开(公告)日：2010-02-18
申请号：US12542934
申请日：2009-08-18
申请人： Paul R. Peot , David Alun James , Mark Johnson , Graham Lodge , Rupert Menzies
发明人： Paul R. Peot , David Alun James , Mark Johnson , Graham Lodge , Rupert Menzies
IPC分类号： H04N1/04
CPC分类号： H04N1/00795 , H04N1/00827 , H04N1/195
摘要： An object identifying system includes an optical scanning device configured to record a series of linear images of successive portions of a support surface as the support surface is moved between first and second positions. A processor in electrical communication with the optical scanning device is configured to compile data corresponding to the series of linear images of the successive portions of the support surface to construct a digital image of the support surface. The processor is configured to compare the digital image of the support surface to at least one stored digital image of a known object to identify an object when the object is disposed on the support surface.
摘要翻译： 物体识别系统包括光学扫描装置，其被配置为当支撑表面在第一和第二位置之间移动时，记录支撑表面的连续部分的一系列线性图像。 与光学扫描装置电连通的处理器被配置为编译对应于支撑表面的连续部分的一系列线性图像的数据，以构成支撑表面的数字图像。 处理器被配置为将支撑表面的数字图像与已知对象的至少一个存储的数字图像进行比较，以在对象被布置在支撑表面上时识别对象。
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10.发明授权公开(公告)号：US06847530B2
公开(公告)日：2005-01-25
申请号：US10474648
申请日：2002-04-12
申请人： David Alun James
发明人： David Alun James
CPC分类号： H02M1/126 , H01F27/324 , H03H1/0007 , H03H7/427
摘要： A switched mode power supply which uses a shieldless transformer (11) in the dc to dc converter. Common mode switching noise is reduced by connecting two capacitors (17, 18) in series between the transformer primary (12) and secondary (13) circuits and connecting an inductor (19) between the junction of the two capacitors (17, 18) and chassis earth. The values of the capacitors (17, 18) and inductor (19) are selected such that the capacitors (17, 18) present a low impedance to noise signals and the inductor (19) presents a high impedance to noise signals.
摘要翻译： 一种使用直流到直流转换器中的无屏蔽变压器（11）的开关模式电源。 通过将两个电容器（17,18）串联连接在变压器初级（12）和次级（13）电路之间并将两个电容器（17,18）和 底盘接地 选择电容器（17,18）和电感器（19）的值使得电容器（17,18）呈现低阻抗对噪声信号，并且电感器（19）呈现高阻抗噪声信号。
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