Invention Application
- Patent Title: METAMATERIAL BASED TORQUE AND SHAFT ROTATIONAL SPEED SENSOR
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Application No.: US17509724Application Date: 2021-10-25
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Publication No.: US20230131760A1Publication Date: 2023-04-27
- Inventor: Alexander SCHOSSMANN , Alexander BERGMANN , Franz Michael DARRER , Dirk HAMMERSCHMIDT , Christof MICHENTHALER
- Applicant: Infineon Technologies AG
- Applicant Address: DE Neubiberg
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Neubiberg
- Main IPC: G01L3/10
- 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.
Public/Granted literature
- US11698311B2 Metamaterial based torque and shaft rotational speed sensor Public/Granted day:2023-07-11
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