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公开(公告)号：US20230400372A1
公开(公告)日：2023-12-14
申请号：US18454834
申请日：2023-08-24
Applicant: Infineon Technologies AG
Abstract: A sensor system includes a first metamaterial track mechanically coupled to a rotational shaft configured to rotate about a rotational axis, wherein the first metamaterial track is arranged at least partially around the rotational axis, and wherein the first metamaterial track includes a first array of elementary structures; at least one transmitter configured to transmit a first continuous wave towards the first metamaterial track, wherein the first metamaterial track is configured to convert the first continuous wave into a first receive signal based on a rotational parameter of the rotational shaft; and at least one quadrature continuous-wave receiver configured to receive the first receive signal, acquire a first measurement of a first property of the first receive signal, and determine a measurement value for the rotational parameter of the rotational shaft based on the first measurement.
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Patent Agency Ranking
2.发明申请公开(公告)号：US20220412779A1
公开(公告)日：2022-12-29
申请号：US17360079
申请日：2021-06-28
Applicant: Infineon Technologies AG
Abstract: A rotation sensor system includes a rotatable target object configured to rotate about a rotational axis in a rotation direction; a first millimeter-wave (mm-wave) metamaterial track coupled to the rotatable target object, where the first mm-wave metamaterial track is arranged around the rotational axis, and where the first mm-wave metamaterial track includes a first array of elementary structures having at least one first characteristic that changes around a perimeter of the first mm-wave metamaterial track; at least one transmitter configured to transmit a first electro-magnetic transmit signal towards the first mm-wave metamaterial track, where the first mm-wave metamaterial track converts the first electro-magnetic transmit signal into a first electro-magnetic receive signal; at least one receiver configured to receive the first electro-magnetic receive signal; and at least one processor configured to determine a rotational parameter of the rotatable target object based on the received first electro-magnetic receive signal.
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公开(公告)号：US20230131760A1
公开(公告)日：2023-04-27
申请号：US17509724
申请日：2021-10-25
Applicant: Infineon Technologies AG
Inventor： Alexander SCHOSSMANN , Alexander BERGMANN , Franz Michael DARRER , Dirk HAMMERSCHMIDT , Christof MICHENTHALER
IPC: G01L3/10
Abstract: A torque measurement system includes an outer rotational shaft and an inner rotational shaft both configured to rotate about a rotational axis. A rotation of the inner rotational shaft causes a rotation of the outer rotational shaft via a coupling structure. At least one torque applied to the inner rotational shaft is translated into a first torque-dependent angular shift between the shafts. A first metamaterial track is coupled to the outer rotational shaft and configured to co-rotate with the outer rotational shaft. A second metamaterial track is coupled to the inner rotational shaft and configured to co-rotate with the inner rotational shaft. The tracks are configured to convert an electro-magnetic transmit signal into a first electro-magnetic receive signal based on the first torque-dependent angular shift and a receiver is configured to receive the electro-magnetic receive signal and measure the at least one torque based on the electro-magnetic receive signal.
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公开(公告)号：US20230140391A1
公开(公告)日：2023-05-04
申请号：US17518912
申请日：2021-11-04
Applicant: Infineon Technologies AG
Abstract: A sensor system includes a first metamaterial track mechanically coupled to a rotational shaft configured to rotate about a rotational axis, wherein the first metamaterial track is arranged at least partially around the rotational axis, and wherein the first metamaterial track includes a first array of elementary structures; at least one transmitter configured to transmit a first continuous wave towards the first metamaterial track, wherein the first metamaterial track is configured to convert the first continuous wave into a first receive signal based on a rotational parameter of the rotational shaft; and at least one quadrature continuous-wave receiver configured to receive the first receive signal, acquire a first measurement of a first property of the first receive signal, and determine a measurement value for the rotational parameter of the rotational shaft based on the first measurement.
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5.发明公开公开(公告)号：US20240263973A1
公开(公告)日：2024-08-08
申请号：US18625258
申请日：2024-04-03
Applicant: Infineon Technologies AG
Abstract: A rotation sensor system includes a rotatable target object configured to rotate about a rotational axis in a rotation direction; a first millimeter-wave (mm-wave) metamaterial track coupled to the rotatable target object, where the first mm-wave metamaterial track is arranged around the rotational axis, and where the first mm-wave metamaterial track includes a first array of elementary structures having at least one first characteristic that changes around a perimeter of the first mm-wave metamaterial track; at least one transmitter configured to transmit a first electro-magnetic transmit signal towards the first mm-wave metamaterial track, where the first mm-wave metamaterial track converts the first electro-magnetic transmit signal into a first electro-magnetic receive signal; at least one receiver configured to receive the first electro-magnetic receive signal; and at least one processor configured to determine a rotational parameter of the rotatable target object based on the received first electro-magnetic receive signal.
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公开(公告)号：US20240167815A1
公开(公告)日：2024-05-23
申请号：US18465666
申请日：2023-09-12
Applicant: Infineon Technologies AG
Abstract: A sensor system includes a first flexible substrate configured to undergo a deformation in response to a force applied to the first flexible substrate or an environmental condition to which the first flexible substrate is exposed; a first metamaterial layer mechanically coupled to the first flexible substrate, wherein the first metamaterial layer comprises a first array of conductive elements that are mutually coupled by a first strain-dependent coupling that changes based on the deformation of the first flexible substrate; at least one transmitter configured to transmit a first electromagnetic transmit wave towards the first metamaterial layer, wherein the first metamaterial layer is configured to convert the first electromagnetic transmit wave into a first electromagnetic receive wave based on the first strain-dependent coupling; and at least one receiver configured to receive the first electromagnetic receive wave and acquire a first measurement of a first property of the first electromagnetic receive wave.
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