Improvement on characteristics of linear oscillatory actuator for artificial hearts

Watada, Masaya; Yanashima, K.; Oishi, Yukiko; Ebihara, Daiki; Dohmeki, Hideo

doi:10.1109/20.281176

Cited by 52 publications

(14 citation statements)

References 5 publications

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“…Linear oscillatory actuators (LOAs) have been used in a wide range of applications [1][2][3][4][5] because they can reciprocate in a comparatively short stroke in spite of their compact size and light weight. Especially, linear resonant actuators (LRAs) have been used and studied [6,7] because the resonance causes high efficiency.…”

Section: Introductionmentioning

confidence: 99%

Proposal of Load and Amplitude Estimation Method for Linear Resonant Actuator Using Two Back-EMF Signals

Kato

Hirata

Asai

et al. 2015

Journal of the Japan Society of Applied Electromagnetics and Me

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Linear resonant actuators (LRAs) have been used and studied because of high efficiency. However, the amplitude of LRAs severely decreases when external loads are applied. As a solution to this problem, we have proposed an external load estimation method using two signals of the back-EMF. However, the proposed method was effective only under unipolar drive. This paper proposes load and amplitude estimation method for LRAs using two back-EMF signals under bipolar PWM feedback control. The effectiveness of this method was verified through 2-D FEM analysis of our code.

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Section: Introductionmentioning

confidence: 99%

Proposal of Load and Amplitude Estimation Method for Linear Resonant Actuator Using Two Back-EMF Signals

Kato

Hirata

Asai

et al. 2015

Journal of the Japan Society of Applied Electromagnetics and Me

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“…A commonly available form of mechanical input energy is linear motion, which may be a reciprocating motion due to the vibration of a structure or machinery [3], or a single linear movement due, for example, to the pressing of a switch or the insertion of a key. Although such linear motions can be converted to rotary motion, by means of racks and pinions or cams, linear generators are often preferred, since they are simpler [4], [5], have a superior efficiency, and are more reliable [6], [7]. This paper is concerned specifically with the design of a system for generating and storing electrical energy from a single linear movement, to supply a remote electronic locks or an identification device such as fingerprint recognition systems, for example.…”

Section: Introductionmentioning

confidence: 99%

A low-power, linear, permanent-magnet generator/energy storage system

Wang

Jewell

et al. 2002

IEEE Trans. Ind. Electron.

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Abstract-This paper describes the design, analysis, and characterization of a linear permanent-magnet generator and capacitive energy storage system for generating electrical power from a single stroke of a salient-pole armature. It is suitable for applications that require relatively low levels of electrical power, such as remote electronic locks. An electromagnetic analysis of the generator is described, and a design optimization methodology for the system is presented. Finally, the performance of a prototype is validated against measurements.

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“…Among the various linear machine topologies, tubular permanent magnet machines provide the highest efficiency and offer a high power/force density and excellent servo characteristics (Eastham, 1990). Hence, linear permanent magnet machine are being used increasingly in application as varied as manufacturing automation, electrical power generation, transportation, healthcare and house hold appliances (Masada, 1995;White et al, 1996;Cawthorne et al, 1999;Watada et al, 1993;Clark et al, 1995;Park et al, 2001;Utsuno et al, 2001). Linear motors are also useful in the semiconductor fabrication and inspection processes (Low et al, 1998).…”

Section: Introductionmentioning

confidence: 99%

Design and Optimization of a Tubular Permanent Magnet Linear Motor Using Finite Element Method and Permeance Analysis Method for Spray Application

Iqbal¹,

Aris²,

Misron³

2015

J. of Applied Sciences

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A B S T R A C TIn order to overcome difficulties of using pneumatic system operated automatic spray gun, a tubular permanent magnet linear motor has been designed and developed to trigger the spray gun. Finite Element Method (FEM) is implemented in motor designing process to obtain the proper size of back yoke, coil and permanent magnet, type of materials of back yoke and PM, pitch length and the required thrust of the linear motor. Magnetic flux distribution can also be predicted from FEM analysis. Then several permeance thrust models are developed to optimize the size of the motor by analyzing the effect of thrust constant, electrical and mechanical time constant. Finally based on the optimized data the linear motor has been fabricated and tested with newly developed spray gun. During the performance test it is seen that the developed linear motor can be successfully implemented to trigger the spray gun.

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Improvement on characteristics of linear oscillatory actuator for artificial hearts

Cited by 52 publications

References 5 publications

Proposal of Load and Amplitude Estimation Method for Linear Resonant Actuator Using Two Back-EMF Signals

Proposal of Load and Amplitude Estimation Method for Linear Resonant Actuator Using Two Back-EMF Signals

A low-power, linear, permanent-magnet generator/energy storage system

Design and Optimization of a Tubular Permanent Magnet Linear Motor Using Finite Element Method and Permeance Analysis Method for Spray Application

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