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公开(公告)号：US11892528B2
公开(公告)日：2024-02-06
申请号：US17050957
申请日：2019-03-26
CPC分类号： G01R33/18 , G01R1/06727 , G01R33/02 , H10N35/101
摘要： A microwave resonator magnetic field measuring device (1) for measuring alternating magnetic fields, with a base plate (11) having at least one supporting/bearing/clamping point (111), at least one mechanical oscillator (12+13) formed as a microwave resonator in the form of a cantilever (13) having at least one magnetostrictive layer (12), the latter being connected and mounted at at least one point to the base plate (11) in the at least one supporting/bearing/clamping point (111), at least one input coupling means (161) for microwaves and at least one output coupling means (162) for microwaves, wherein the base plate (11) and the mechanical oscillator (12+13) formed as a microwave resonator are at least partly electrically conductive and electrically conductively connected to one another. Also, a magnetic field measuring method having a magnetic field measuring device according to the invention.
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公开(公告)号：US20190317161A1
公开(公告)日：2019-10-17
申请号：US16462314
申请日：2017-10-06
发明人： Eckhard Quandt , Anne Kittmann , Sebastian Zabel , Erdem Yarar , Franz Faupel , Reinhard Knoechel , Michael Hoeft , Phillip Durdaut
摘要： A magnetic field sensor element with a piezo electric substrate having predetermined shear wave velocity VS, two pairs of interdigital electrodes, arranged on the substrate on the ends of a delay section, having a period length p of at least 10 micrometers, a non-magnetic, electrically non-conductive guide layer arranged on the substrate along the delay section, and a magnetostrictive functional layer arranged on the guide layer, wherein the shear wave velocity in the guide layer is smaller than VS, wherein a) the substrate is oriented to generate and propagate mechanical shear waves upon applying a temporally periodic, electrical voltage to at least one interdigital electrode pair in the range of frequency VS/p and, wherein b) the thickness of the guide layer equals at least 10% and at at most 30% of the period length p of the interdigital electrodes.
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公开(公告)号：US20210231757A1
公开(公告)日：2021-07-29
申请号：US17050957
申请日：2019-03-26
摘要： A microwave resonator magnetic field measuring device (1) for measuring alternating magnetic fields, with a base plate (11) having at least one supporting/bearing/clamping point (111), at least one mechanical oscillator (12+13) formed as a microwave resonator in the form of a cantilever (13) having at least one magnetostrictive layer (12), the latter being connected and mounted at at least one point to the base plate (11) in the at least one supporting/bearing/clamping point (111), at least one input coupling means (161) for microwaves and at least one output coupling means (162) for microwaves, wherein the base plate (11) and the mechanical oscillator (12+13) formed as a microwave resonator are at least partly electrically conductive and electrically conductively connected to one another. Also, a magnetic field measuring method having a magnetic field measuring device according to the invention.
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公开(公告)号：US20190117845A1
公开(公告)日：2019-04-25
申请号：US16094553
申请日：2017-03-23
摘要： A layer having individual elements made of an elastic material, with the length thereof exceeding the diameter thereof, which are secured on a carrier at a distance to one another, wherein the elements can be moved towards and away from one another, the elements can contact when moving towards one another, the outer surfaces of the elements provided with a surface modification, and the surface modification containing substances that can form reversible, non-covalent bonds. Also, a method for producing the layer, and the use of the layer.
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公开(公告)号：US20180299514A1
公开(公告)日：2018-10-18
申请号：US15578751
申请日：2016-05-31
发明人： Patrick Hayes , Andre Piorra , Reinhard Knoechel , Eckhard Quandt
IPC分类号： G01R33/00 , G01R33/02 , G01B7/16 , H01L41/047
摘要： A magnetic field measuring method using a magnetoelectric composite element as an oscillator, in which a time-dependent measurement magnetic field acts on the magnetostrictive phase of the composite element, and an electrical measurement voltage is tapped off across the piezoelectric phase of the composite element and is used to infer the measurement magnetic field. At least one dielectric phase is connected to the magnetostrictive phase of the composite element by a material bond. When an electrical voltage is applied, the dielectric phase exhibits a change in length, the magnitude of which depends in a non-linear manner on the magnitude of the voltage, and a temporally periodic electrical modulation voltage is applied to the dielectric phase.
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公开(公告)号：US09841472B2
公开(公告)日：2017-12-12
申请号：US14427714
申请日：2013-10-07
发明人： Andre Piorra , Eckhard Quandt
IPC分类号： G01R19/00 , G01R33/09 , H01L41/00 , H01L41/047
CPC分类号： G01R33/09 , H01L41/00 , H01L41/047
摘要： Magnetoelectric sensors that can be manufactured using known methods of thin film technology and output an ME voltage that is many times higher for a predetermined magnetic field than the known cantilever-beam sensor. The design that is termed separator ME sensor is characterized by the arrangement of a thick dielectric layer (14) between the ferroelectric (10) and the magnetostrictive phases (12), and by an electrode arrangement (18) applied on one side of the ferroelectric (10) and that is engineered to tap the ME voltage along the extent of the layer. Advantageously, it can be manufactured easily by coating conventional dielectric substrates (14) on the front and rear with one each of the functional layers (10, 12).
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公开(公告)号：US20240241250A1
公开(公告)日：2024-07-18
申请号：US18290300
申请日：2022-03-13
发明人： Gerhard Schmidt , Eckhard Quandt , Hanna Lewitz , Tim Owe Wisch , Bastian Kaulen , Alexej Namenas , Frederik Kuehne
CPC分类号： G01S15/003 , G01S7/536 , G01S15/523 , G01S15/586
摘要： A sonar method and assembly for detecting and/or determining the position and/or speed of objects underwater and/or on the water in a specified region. The orthogonality of Doppler-shifted transmission sequences is explored. First, a transmission sequence is generated, spread for some possible Doppler shifts and output via the transmission elements. If the transmission sequence is chosen carefully, the spread versions become orthogonal to each other and enable MIMO signal processing. If one of the assumed spreads matches the speed of the object, the spread is canceled out again to form the original transmission signal. This allows the binary detection of the presence of an object with the correlation of only one sequence and reduces the computing effort at the respective receivers enormously.
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公开(公告)号：US11137457B2
公开(公告)日：2021-10-05
申请号：US16462314
申请日：2017-10-06
发明人： Eckhard Quandt , Anne Kittmann , Sebastian Zabel , Erdem Yarar , Franz Faupel , Reinhard Knoechel , Michael Hoeft , Phillip Durdaut
摘要： A magnetic field sensor element with a piezo electric substrate having predetermined shear wave velocity VS, two pairs of interdigital electrodes, arranged on the substrate on the ends of a delay section, having a period length p of at least 10 micrometers, a non-magnetic, electrically non-conductive guide layer arranged on the substrate along the delay section, and a magnetostrictive functional layer arranged on the guide layer, wherein the shear wave velocity in the guide layer is smaller than VS, wherein a) the substrate is oriented to generate and propagate mechanical shear waves upon applying a temporally periodic, electrical voltage to at least one interdigital electrode pair in the range of frequency VS/p and, wherein b) the thickness of the guide layer equals at least 10% and at most 30% of the period length p of the interdigital electrodes.
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公开(公告)号：US20150247904A1
公开(公告)日：2015-09-03
申请号：US14427714
申请日：2013-10-07
发明人： Andre Piorra , Eckhard Quandt
IPC分类号： G01R33/09
CPC分类号： G01R33/09 , H01L41/00 , H01L41/047
摘要： Magnetoelectric sensors that can be manufactured using known methods of thin film technology and output an ME voltage that is many times higher for a predetermined magnetic field than the known cantilever-beam sensor. The design that is termed separator ME sensor is characterised by the arrangement of a thick dielectric layer (14) between the ferroelectric (10) and the magnetostrictive phases (12), and by an electrode arrangement (18) applied on one side of the ferroelectric (10) and that is engineered to tap the ME voltage along the extent of the layer. Advantageously, it can be manufactured easily by coating conventional dielectric substrates (14) on the front and rear with one each of the functional layers (10, 12).
摘要翻译： 可以使用已知的薄膜技术方法制造的电磁传感器，并输出与已知悬臂梁传感器相比预定磁场高出许多倍的ME电压。 称为分离器ME传感器的设计的特征在于在铁电体（10）和磁致伸缩相（12）之间布置厚介电层（14），并且通过施加在铁电体的一侧上的电极装置（18） （10），并且被设计为沿着该层的程度敲击ME电压。 有利地，可以通过用一个功能层（10,12）在前后涂覆常规电介质基板（14）来容易地制造。
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