Analysis and development of the angular twist type torque-meter

Cheong, Yeon Doo; Kim, Ji Woong; Oh, Se Hoon; Lee, Chong Won

doi:10.1016/s0263-8223(00)00010-6

Cited by 11 publications

(4 citation statements)

References 4 publications

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“…A grande variedade de junções de materiais e o ruído provocado pelo contato entre anel coleto e escovas, causam alterações nos resultados. O sistema se torna instável quando submetido a vibrações ou alta rotação (BORGES, 2007;CHEONG et al, 1999). A Figura 4 mostra um esboço de como seria.…”

Section: Medição De Torção Via Anéis Coletoresunclassified

Projeto e construção de um dinamômetro para medir o torque dinâmico de um eixo rotativo

et al. 2019

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Este trabalho consiste em desenvolver o projeto e a construção de um dinamômetro para ser acoplado no eixo árvore de um centro de usinagem vertical. O dinamômetro a ser desenvolvido deve ser capaz de monitorar parâmetros de processo, objetivando o mensuramento do torque dinâmico. Para o funcionamento do dinamômetro, uma deformação deve ser analisada. Neste caso, a deformação é dada por uma mola calibrada. Sua deformação e variações na velocidade de rotação serão captadas por sensores infravermelhos e, como utiliza um método sem contato na medição e transmissão, acaba tornando-se menos sensível a vibrações. Manter uma boa fixação e evitar vibrações são fatores importantes dentro do projeto, então o estudo sobre rolamentos, ajustes e tolerâncias se faz necessário. Outro fator importante a ser considerado são os materiais específicos de cada componente, visando evitar excesso de peso e baixar o custo, sem comprometer a aquisição de dados. Com o respectivo projeto pretende-se suprir uma necessidade do laboratório de usinagem de medição de esforços, além do conhecimento técnico que será adquirido, tanto da parte mecânica como da parte eletrônica, durante seu desenvolvimento, aquisição e interpretação de informações.

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Section: Medição De Torção Via Anéis Coletoresunclassified

Projeto e construção de um dinamômetro para medir o torque dinâmico de um eixo rotativo

et al. 2019

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“…Kebutuhan akan pengu kuran torsi senantiasa meningkat seiring dengan peningkatan kapasitas produk mesin. [2] Perkalian kecepatan dan torsi akan menghasilkan nilai daya yang ditransmisikan ke shaft. [3] Pengukuran kecepatan motor biasanya menggunakan alat yang dinamakan tachometer.…”

Section: A Pendahuluanunclassified

Perancangan Instrumen Ukur Torsi Dan Kecepatan Pada Motor Dc Dengan Prinsip Nonkontak Berdasarkan Deteksi Medan Magnet

et al. 2016

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ABSTRAKTelah dilakukan perancangan instrumen ukur torsi dan kecepatan pada motor DC dengan menggunakan prinsip nonkontak berdasarkan deteksi medan magnet. Penelitian ini bertujuan untuk mengetahui performansi motor DC dilihat dari parameter torsi dan kecepatan. Instrumen ukur torsi dirancang berdasarkan metode magnetoelastic effect, di mana suatu bahan feromagnetik yang diberi gaya maupun torsi akan mengalami perubahan medan magnet yang nilainya akan sebanding dengan torsi yang diterima. Perubahan kecepatan putar akan memengaruhi perubahan medan magnet yang dideteksi dengan sensor hall effect switch tipe HI 400. Prinsip kerja pengukuran kecepatan adalah mendeteksi perubahan polaritas ring magnet selama berputar dan terbaca sebagai sinyal digital oleh sensor tersebut yang digunakan untuk mencari kecepatan dari putaran motor. Dalam proses pengujian, kalibrator tachometer optik digunakan untuk mengukur kecepatan, sedangkan pengukuran torsi menggunakan nilai torsi teoritis yang diperoleh dari hasil pengukuran gaya (F) dari loadcell dikalikan dengan panjang lengan (L). Tachometer yang dibuat memiliki error 104,18 % pada input 1,2 V (minimum), error 2,5 % pada input 6 V (tengah), dan error 4,76 % pada input 12 V (maksimum), linearitas naik sebesar 0,9979 dan linearitas turun sebesar 0,9978. Sensitivitas naik-turun masing-masing sebesar 152,45 dan 153,09. Histerisis input 0,031, sedangkan histerisis output 5,077. Selain itu, didapat hubungan antara torsi yang diterima oleh shaft dari bahan feromagnetik dengan perubahan medan magnetnya dengan persamaan y = -623,31x -40,861, di mana y = medan magnet (Gauss), x = torsi (Nm), nilai -623,31 adalah konstanta k dengan dimensi satuan gauss/Nm, dan -40,861 merupakan konstanta yang tidak berdimensi. Alat ukur torsi motor DC berdasarkan prinsip magnetoelastic effect dapat dipenuhi dengan rentang pengukuran yang linear 0,05-0,1 Nm. Kata kunci: motor DC, torsi, kecepatan, magnetoelastic effect, sensor hall effect, tachometer ABSTRACT The design of torque and speed measuring instruments for DC motors has been done by using non-contact principle based on magnetic field detection. The purpose of the study is to determine the performance of DC

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“…The need of torque measurement is increased as more and more mechanical product capacity is developed. The measurement of torque is essentially required to the control part of power transmission system for the improvement of machine efficiency [2]. Therefore, the sensing and measurement of torque in an accurate, reliable and inexpensive manner is needed.…”

Section: Introductionmentioning

confidence: 99%

Design of a New Non-Contact Torque Sensor for Rotating Stepped Shaft by Monitoring Magnetic Field

Shi

Wang

Cho

2010

AMM

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In this paper, a new non-contact sensor is presented for detecting torque of a rotating stepped shaft which is frequently employed in power transmission system. This sensor doesn’t require cutting or lengthening the rotating shaft. Torque value is obtained by using two magnetic sensors to sense magnetic field intensity of two permanent rubber magnets fixed at the outer surface of the shaft. The phase difference between these two induction signals is used to determine torque of the stepped shaft. A real-time algorithm based on LabVIEW is employed to obtain the measured torque value. The present work has demonstrated that non-contact torque measurement for rotating stepped shaft by monitoring magnetic field is feasible. It seems like that further development will result in low-cost torque sensor. It is hoped that this kind of sensor can lead to a new development direction of torque sensor for rotating shaft.

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Analysis and development of the angular twist type torque-meter

Cited by 11 publications

References 4 publications

Projeto e construção de um dinamômetro para medir o torque dinâmico de um eixo rotativo

Projeto e construção de um dinamômetro para medir o torque dinâmico de um eixo rotativo

Perancangan Instrumen Ukur Torsi Dan Kecepatan Pada Motor Dc Dengan Prinsip Nonkontak Berdasarkan Deteksi Medan Magnet

Design of a New Non-Contact Torque Sensor for Rotating Stepped Shaft by Monitoring Magnetic Field

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