Torque Measurement Technology by Using a Magnetostrictive Ring and Multiple Magnets

Xu, Feng; Dhimole, Vivek Kumar; Cho, Chongdu

doi:10.3390/act10060124

Cited by 4 publications

(3 citation statements)

References 21 publications

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“…Similar behaviors are observed for magnetostrictive curves [1] and also for ferromagnetic materials [4,5]. These properties can be exploited for sensing [6,7] and for non-destructive testing [4].…”

Section: Introductionsupporting

confidence: 71%

Self-Similarity in Magnetostrictive Materials: An Experimental Point of View

et al. 2021

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Magnetostrictive behavior is characterized by a complex coupling between magnetic and mechanical quantities. While this behavior can be quite easily exploited for both actuation and sensing or energy conversion purposes, the complex hysteresis interaction between magnetization and magnetic field and mechanical stress and strain is hard to model. Nevertheless, magnetic and magnetostrictive experimental curves are quite self-similar, assuming stress as self-similarity parameter. The quantification of this concept would help modeling. Here, this concept is quantified and experimentally confirmed over different types of magnetostrictive samples.

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Section: Introductionsupporting

confidence: 71%

Self-Similarity in Magnetostrictive Materials: An Experimental Point of View

et al. 2021

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“…In a later study, Beirle and Seemann [351] managed to build a remote torque sensor fabricated from Fe 32 Co 46 Hf 11 N 12 and Fe 40 Co 37 Zr 11 N 12 thin films, reaching sensitivity near 10 MHz/Nm in a range of 0 -100 Nm. In another attempt, Xu et al [352] equipped a solid rotating shaft with a magnetostrictive ring and eight permanent magnets for torque measurement and twist angle detection. With an error of less than 1%, this configuration was appropriate for both static and dynamic conditions.…”

Section: ) Force and Torque Sensorsmentioning

confidence: 99%

Strain Sensing Technology to Enable Next-Generation Industry and Smart Machines for the Factories of the Future: A Review

Hamed,

O’Donnell,

Lishchenko

et al. 2023

IEEE Sensors J.

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In the era of digitalization, there is a huge focus on capturing data from manufacturing processes and systems. Since the promotion of Industry 4.0, the industrial marketplace has been crowded with solution providers who excel in capturing and aggregating data on the cloud and presenting it on dashboards. From machine states to production targets, this type of data has become more readily available from tools, controllers, switches, and factory bus systems. As the industry pushes deeper into the machine for information and aspires to have smart machines that can feel and react to experiences during the manufacturing process, then more sophisticated technology is necessary. Strain sensor technology is a logical measurement principle to address this challenge for many industrial sectors. For researchers and industrialists to progress toward the smart machine agenda, there must be a firm grasp of the "technology-solution fit," i.e., what strain technology could provide the most appropriate solution. This paper presents a review of the state of the art in strain sensors that are foreseen as frontrunners to enable next-generation smart components and intelligent tools. The review focuses on industrial strain sensing technologies that are at a mature place on the technology readiness levels (TRLs) and present themselves as highly practical solutions for smart components and digitized machines, considering sensitivity, powered or passive, wired or wireless, and robustness. Through this review, researchers and industrialists will have a suite of solutions to move on with their innovative designs of smart machines based on embedded strain sensor technology.

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“…Capelle et al proposed an indirect torque measurement method using an Augmented Extended Kalman filter, a physics-based model and encoder and strain measurements on the LSS and HSS and the GB housing, respectively [ 22 ]. In [ 23 ], a torque measurement methodology was proposed using both magnetostrictive effect and twist angle measurement. The disadvantages of an indirect torque measurement method include complexities in the SG and electronics installation on the rotating LSS [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

From Strain to Loads: Development of a Measurement Solution for Wind Turbine Transmission Input Loads during Drivetrain Testing

Bilen

Azzam

Schelenz

et al. 2023

Sensors

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As wind energy is paving the way for the energy transition from fossil to renewable energy sources, the ongoing trend of increasing the rated power of wind turbines aims to reduce the overall cost of wind energy. The resulting increase in drivetrain loads motivates the need for wind turbine (WT) drivetrain testing in the development phase of critical components such as the WT main gearbox (GB). While several WT system test benches allow for the application of emulated rotor loads in six degrees of freedom (6-DOF), the drivetrain input loads can significantly differ from the GB 6-DOF input loads due to the design of the drivetrain under test. However, currently available load measurement solutions are not capable of sensing GB input loads in 6-DOF. Thus, this work aims to develop a methodology for converging signals from a purposely designed sensor setup and turbine specific design parameters to compute the GB 6-DOF input loads during WT testing. Strain gauges (SG) and accelerometers have been installed on the low-speed shaft (LSS) of a WT drivetrain under test at the 4MW WT system test bench at the Center for Wind Power Drives. Using the data of the aforementioned sensors, a methodology for computing the GB input loads is developed. The methodology is validated through comparison to the applied loads data provided by the aforementioned test bench. The results demonstrate the high promise of the proposed method for estimating the GB input loads during WT drivetrain testing.

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Torque Measurement Technology by Using a Magnetostrictive Ring and Multiple Magnets

Cited by 4 publications

References 21 publications

Self-Similarity in Magnetostrictive Materials: An Experimental Point of View

Self-Similarity in Magnetostrictive Materials: An Experimental Point of View

Strain Sensing Technology to Enable Next-Generation Industry and Smart Machines for the Factories of the Future: A Review

From Strain to Loads: Development of a Measurement Solution for Wind Turbine Transmission Input Loads during Drivetrain Testing

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