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公开(公告)号：US06498549B1
公开(公告)日：2002-12-24
申请号：US09457430
申请日：1999-12-07
申请人： Hua Jiang , Wei Hu , Shaohua Liang , Yi-Qun Li , Vladimir Fuflyigin , Jiankang Huang
发明人： Hua Jiang , Wei Hu , Shaohua Liang , Yi-Qun Li , Vladimir Fuflyigin , Jiankang Huang
IPC分类号： H01P120
CPC分类号： H01P1/20381 , H01P1/181 , H01P1/20363 , H01P1/20372 , H01P7/082 , H01P7/088
摘要： A ferroelectric layer is deposited or in close proximity to a ferromagnetic ferrite layer to make a microwave substrate on which conductors can be deposited or placed to make devices. The permittivity of the ferroelectric layer can be changed by applying a voltage and the permeability of the ferromagnetic layer can be changed with a magnetic field. This makes it possible to tune the device characteristics with two different effects taking best advantage of the capabilities of each. A material example is ferromagnetic yttrium-iron-garnet on which is deposited a thin film of ferroelectric barium strontium titanate. To minimize losses, the ferroelectric film should be high quality, but practical yttrium-iron-garnet substrates are polycrystalline so that the use of buffer layers is desirable. At least two methods can be used to deposit the ferroelectric film, pulsed laser deposition and metal-organic chemical liquid deposition. A variety of dual tunable microwave devices can be made with this substrate, including by way of example only, phase shifters, frequency filters, and resonators.
摘要翻译： 沉积铁电层或紧邻铁磁性铁氧体层，以制成微波基板，导体可以沉积或放置在其上以制造器件。 可以通过施加电压来改变铁电层的介电常数，并且可以用磁场改变铁磁层的磁导率。 这使得可以利用两种不同的效果来调整设备特性，最大限度地利用每个特性的能力。 材料实例是铁磁钇 - 铁 - 石榴石，在其上沉积铁电钡钛酸锶薄膜。 为了使损耗最小化，铁电体膜应该是高质量的，但是实用的钇 - 铁 - 石榴石基材是多晶的，所以需要使用缓冲层。 可以使用至少两种方法来沉积铁电薄膜，脉冲激光沉积和金属有机化学液体沉积。 可以使用该衬底制造各种双可调微波器件，仅包括移相器，频率滤波器和谐振器。
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公开(公告)号：US07808236B1
公开(公告)日：2010-10-05
申请号：US11652272
申请日：2007-01-11
摘要： Apparatus and method for harvesting energy from the environment and/or other external sources and converting it to useful electrical energy. The harvester does not contain a permanent magnet or other local field source but instead relies on the earth's magnetic field of another source of a magnetic field that is external to the sensing device. One advantage of these new harvesters is that they can be made smaller and lighter than energy harvesters that contain a magnet and/or an inertial mass.
摘要翻译： 从环境和/或其他外部来源收集能量并将其转换为有用的电能的装置和方法。 收割机不包含永磁体或其他局部场源，而是依赖于感测装置外部的另一磁场源的地磁场。 这些新收割机的一个优点是，它们可以比含有磁体和/或惯性质量的能量收集器更小更轻。
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公开(公告)号：US07569952B1
公开(公告)日：2009-08-04
申请号：US10826852
申请日：2004-04-16
IPC分类号： H02K33/00
CPC分类号： H02K35/02 , H01F7/1615
摘要： An inductive energy harvester comprises a permanent magnet magnetic field source attached by a pair of compact spiral disk springs to an induction coil. The springs position the magnet so that the induction coil surrounds one end of the magnet where the flux density is greatest. In addition, the magnetic flux emerging from that end of the magnet is enhanced by a disk of magnetic material having high permeability and high flux density. In another embodiment, the magnetic field source comprises two dipole magnets arranged in opposing flux relationship with a thin layer of high flux density, high magnetic permeability material located in a gap between the magnets.
摘要翻译： 一种感应式能量收集器包括一个由一对紧凑的螺旋盘弹簧附接到感应线圈的永磁体磁场源。 弹簧定位磁体，使得感应线圈围绕磁体的一端，磁通密度最大。 此外，从磁体的这一端出现的磁通量通过具有高磁导率和高磁通密度的磁性材料盘增强。 在另一个实施例中，磁场源包括两个偶极子磁体，这两个偶极子磁体以位于磁体之间的间隙中的高磁通密度，高磁导率材料薄层相对的磁通关系布置。
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公开(公告)号：US20100253089A1
公开(公告)日：2010-10-07
申请号：US11652272
申请日：2007-01-11
摘要： Apparatus and method for harvesting energy from the environment and/or other external sources and converting it to useful electrical energy. The harvester does not contain a permanent magnet or other local field source but instead relies on the earth's magnetic field of another source of a magnetic field that is external to the sensing device. One advantage of these new harvesters is that they can be made smaller and lighter than energy harvesters that contain a magnet and/or an inertial mass.
摘要翻译： 从环境和/或其他外部来源收集能量并将其转换为有用的电能的装置和方法。 收割机不包含永磁体或其他局部场源，而是依赖于感测装置外部的另一磁场源的地磁场。 这些新收割机的一个优点是，它们可以比含有磁体和/或惯性质量的能量收集器更小更轻。
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5.发明申请公开(公告)号：US20100015918A1
公开(公告)日：2010-01-21
申请号：US12505151
申请日：2009-07-17
申请人： Yiming Liu , Jesse Simon , Robert C. O'Handley , Jiankang Huang
发明人： Yiming Liu , Jesse Simon , Robert C. O'Handley , Jiankang Huang
IPC分类号： H04B5/00
CPC分类号： H04B5/00 , H04B5/0031 , H04B5/0037 , H04B5/0075
摘要： Apparatus and method for wireless near-field magnetic communication (NFMC) of information (e.g., voice or data) over modest distances (centimeters to a few kilometers). The transmission can proceed from an inductive coil transmitter to a magneto-electric (ME) receiving device, or between two ME devices. Electrical power may also be transmitted from and/or received using the same device. In one case, power and data are transmitted from an induction coil to a distant ME device that collects power and transmits data back to the power-transmission coil. In another case, the wireless transfer of data can be carried out between two ME devices. ME devices can be engineered to transmit or receive data and to receive electric power over a variety of frequencies by changing their dimensions, their material makeup and configuration, electrode configurations, and/or their resonance modes (longitudinal, transversal, bending, shear etc). Data rates up to and above several kilo-bits/s are possible using these methods with no limits on the frequency and duration of the communication.
摘要翻译： 无线近场磁通信（NFMC）的装置和方法，其通过适度距离（厘米至几公里）的信息（例如语音或数据）。 传输可以从感应线圈发射器进行到磁电（ME）接收装置，或两个ME装置之间。 也可以使用同一设备发送电力和/或接收电力。 在一种情况下，电力和数据从感应线圈传送到收集电力并将数据发送回到电力传输线圈的远程ME设备。 在另一种情况下，数据的无线传输可以在两个ME设备之间进行。 ME设备可以设计为通过改变其尺寸，材料组成和配置，电极配置和/或其谐振模式（纵向，横向，弯曲，剪切等）来传输或接收数据并通过各种频率接收电力， 。 使用这些方法可以使数据速率高达几千位/秒，对通信的频率和持续时间没有限制。
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公开(公告)号：US20090062886A1
公开(公告)日：2009-03-05
申请号：US12240368
申请日：2008-09-29
IPC分类号： A61N1/378
CPC分类号： G01R33/18 , A61N1/326 , A61N1/3787 , A61N2/006 , A61N2/02 , H02K99/10 , H02N11/002
摘要： Small implantable magnetostrictive-electroactive (ME) device for delivering electrical energy to surrounding tissue. The wireless ME device is activated by a changing magnetic field from an externally applied alternating magnetic field source. The ME device provides a means for stimulating a nerve, tissue or internal organ with direct electrical current, such as relatively low-level direct current for temporary or as needed therapy. The field source (e.g. small coil antenna) may be a hand-held device or affixed to the wearer's skin, clothing or accessories. The ME implant may be configured as pellets which are small enough to be implanted through a surgical needle. In one embodiment, the wireless energy transmission system can be used for stimulating bone growth.
摘要翻译： 用于将电能传递到周围组织的小型可植入磁致伸缩电活动（ME）装置。 无线ME设备由来自外部施加的交变磁场源的变化的磁场激活。 ME装置提供用于以直接电流刺激神经，组织或内部器官的手段，例如用于临时或需要治疗的相对低水平的直流电。 场源（例如，小线圈天线）可以是手持式装置或者固定在穿着者的皮肤，衣服或附件上。 ME植入物可以被构造成足够小以通过手术针植入的丸粒。 在一个实施例中，无线能量传输系统可用于刺激骨骼生长。
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公开(公告)号：US06984902B1
公开(公告)日：2006-01-10
申请号：US10767800
申请日：2004-01-29
申请人： Jiankang Huang , Robert C. O'Handley , David Bono
发明人： Jiankang Huang , Robert C. O'Handley , David Bono
IPC分类号： H01L41/08
摘要： In a vibrational energy harvester, an external vibration causes relative motion between a permanent magnet and a magnetic field sensing element composed of a magnetostrictive material bonded to an electroactive material. The changing magnetic field causes a rotation of magnetization in the magnetostrictive material and the rotating magnetization generates a stress in the magnetostrictive material. The stress is transmitted to the electroactive material, which responds by generating electrical power.
摘要翻译： 在振动能量收集器中，外部振动导致永磁体和由结合到电活性材料的磁致伸缩材料组成的磁场感测元件之间的相对运动。 变化的磁场引起磁致伸缩材料中的磁化旋转，并且旋转磁化在磁致伸缩材料中产生应力。 应力被传递到电活性材料，其通过产生电力来响应。
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公开(公告)号：US07952349B2
公开(公告)日：2011-05-31
申请号：US11734181
申请日：2007-04-11
CPC分类号： A61N1/3787 , A61N1/3785 , A61N2/006 , G01R33/18 , H01L41/00 , H02K99/10 , H02N11/002
摘要： Apparatus and method for harvesting energy from the environment and/or other external sources and converting it to useful electrical energy. The harvester does not contain a permanent magnet or other local field source but instead relies on the earth's magnetic field of another source of a magnetic field that is external to the sensing device. One advantage of these new harvesters is that they can be made smaller and lighter than energy harvesters that contain a magnet and/or an inertial mass.
摘要翻译： 从环境和/或其他外部来源收集能量并将其转换为有用的电能的装置和方法。 收割机不包含永磁体或其他局部场源，而是依赖于地球的磁场或感测装置外部的磁场的另一个源。 这些新收割机的一个优点是，它们可以比含有磁体和/或惯性质量的能量收集器更小更轻。
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9.发明申请公开(公告)号：US20080211491A1
公开(公告)日：2008-09-04
申请号：US11840459
申请日：2007-08-17
IPC分类号： G01R33/18
CPC分类号： A61N2/006 , A61N1/3785 , A61N1/3787 , G01R33/18 , H01L41/00 , H02K99/10 , H02N11/002
摘要： A magnetic field sensor comprises one or more magnetic layers of magnetostrictive material that is mechanically bonded to one or more layers of electroactive material. When a magnetic field is applied to the device, it rotates the magnetization that is present in the in the magnetostrictive material thereby generating a magnetostrictive stress in the material. The magnetostrictive stress generated by this layer, in turn, stresses the piezoelectric layer to which the magnetostrictive layer is bonded. In order to increase sensitivity, the voltage across the piezoelectric material is measured in a direction that is parallel to the plane in which the magnetization in the magnetic material rotates.
摘要翻译： 磁场传感器包括机械地结合到一层或多层电活性材料层的磁致伸缩材料的一个或多个磁性层。 当磁场被施加到该装置时，其旋转存在于磁致伸缩材料中的磁化，从而在该材料中产生磁致伸缩应力。 由该层产生的磁致伸缩应力又对应于磁致伸缩层所结合的压电层。 为了提高灵敏度，在与磁性材料的磁化旋转的平面平行的方向上测量压电材料两端的电压。
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公开(公告)号：US20070282378A1
公开(公告)日：2007-12-06
申请号：US11734181
申请日：2007-04-11
CPC分类号： A61N1/3787 , A61N1/3785 , A61N2/006 , G01R33/18 , H01L41/00 , H02K99/10 , H02N11/002
摘要： Apparatus and method for harvesting energy from the environment and/or other external sources and converting it to useful electrical energy. The harvester does not contain a permanent magnet or other local field source but instead relies on the earth's magnetic field of another source of a magnetic field that is external to the sensing device. One advantage of these new harvesters is that they can be made smaller and lighter than energy harvesters that contain a magnet and/or an inertial mass. A small implantable stimulator(s) includes at least one passive magnetostrictive/electro-active (PME) magnetic-field sensor for delivering electrical stimulation to surrounding tissue. The PME is charged utilizing a changing magnetic field from an external alternating magnetic field source at a frequency particular to the PME. The small stimulator provides means of stimulating a nerve, tissue or internal organ with direct electrical current, such as relatively low-level direct current for temporary or as needed therapy. The field source may be a hand-held device or a small antenna affixed to the wearer's skin, clothing or accessories. The stimulator may be configured to be small enough to be implanted through a surgical needle. Open- and closed-loop systems are disclosed with measurement of current flow and therapy through PME sensor function.
摘要翻译： 从环境和/或其他外部来源收集能量并将其转换为有用的电能的装置和方法。 收割机不包含永磁体或其他局部场源，而是依赖于地球的磁场或感测装置外部的磁场的另一个源。 这些新收割机的一个优点是，它们可以比含有磁体和/或惯性质量的能量收集器更小更轻。 小型可植入刺激器包括至少一个用于向周围组织递送电刺激的被动磁致伸缩/电活性（PME）磁场传感器。 使用来自外部交变磁场源的变化的磁场，以特定于PME的频率对PME进行充电。 小型刺激器提供用直接电流刺激神经，组织或内部器官的手段，例如用于临时或需要治疗的相对低水平的直流电。 场源可以是固定到穿着者的皮肤，衣服或附件的手持装置或小天线。 刺激器可以被配置为足够小以通过手术针植入。 公开了开放和闭环系统，通过PME传感器功能测量电流和治疗。
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