Numerical Investigation on the Acceleration Vibration Response of Linear Actuator

Hassanian, Reza; Riedel, Morris; Yeganeh, Nashmin

doi:10.4236/oalib.1108625

Cited by 3 publications

(4 citation statements)

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“…In general, ERM actuators are only available for simple vibration needs in small device parts [45,51]. In the LRAs (shown in Figure 4(a2)), alternating currents (ACs) pass through the voice coils enclosing one movable permanent magnet, and the forces generated by the electromagnet act on a small mass mounted on the springs to generate resonant frequency, thereby utilizing a small input to gain a large output vibration [52]. Even though the response speeds of these designs are faster than ERMs, they only work in a very narrow frequency range and have the problem Electromagnetic actuators are based on electromagnetic field for electromechanical energy conversion.…”

Section: Different Kinds Of Haptic Actuatorsmentioning

confidence: 99%

Electromechanical Actuators for Haptic Feedback with Fingertip Contact

2023

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Haptic technology that provides tactile sensation feedback by utilizing actuators to achieve the purpose of human–computer interaction is obtaining increasing applications in electronic devices. This review covers four kinds of electromechanical actuators useful for achieving haptic feedback: electromagnetic, electrostatic, piezoelectric, and electrostrictive actuators. The driving principles, working conditions, applicable scopes, and characteristics of the different actuators are fully compared. The designs and values of piezoelectric actuators to achieve sophisticated and high-definition haptic effect sensations are particularly highlighted. The current status and directions for future development of the different types of haptic actuators are discussed.

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Section: Different Kinds Of Haptic Actuatorsmentioning

confidence: 99%

Electromechanical Actuators for Haptic Feedback with Fingertip Contact

2023

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“…Our research group has delved deeply into vibrotactile stimulation properties, especially in sensory augmentation devices [7,8,[27][28][29][30][31][32][33][34]. One notable system that we have developed is the "The Sound of Vision" sensory substitution platform for the visually impaired.…”

Section: Can Braille Be Conveyed With Vibrotactile Stimulation?mentioning

confidence: 99%

Discrimination Accuracy of Sequential Versus Simultaneous Vibrotactile Stimulation on the Forearm

Yeganeh,

Makarov,

Kristjánsson

et al. 2023

Applied Sciences

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We examined discrimination accuracy of vibrotactile patterns on the upper forearm using a 2 × 3 array of voice coil actuators to generate 100 Hz vibrotactile stimulation. We evaluated participants’ ability to recognize distinct vibrotactile patterns presented both simultaneously (1000 ms) and sequentially (500 ms with a 450 ms interval). Recognition accuracy was significantly higher for sequential (93.24%) than for simultaneous presentation (26.15%). Patterns using 2–3 actuators were recognized more accurately than those using 4–5 actuators. During sequential presentation, there were primacy and recency effects; accuracy was higher for the initial and final stimulations in a sequence. Over time, participants also demonstrated a learning effect, becoming more adept at recognizing and interpreting vibrotactile patterns. This underscores the potential for skill development and emphasizes the value of training for wearable vibrotactile devices. We discuss the implications of these findings for the design of tactile communication devices and wearable technology.

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“…Vibrotactile patterns can be presented by manipulating the sequencing of the vibrations across the actuators, enabling the presentation of a wide range of sensations to users. The use of voice coil actuators in wearable vibrotactile displays has opened up exciting possibilities for the development of novel and sophisticated haptic technologies [8,9].…”

Section: Introductionmentioning

confidence: 99%

“…These displays have the potential to provide a vast amount of information to low-activity areas of the body, freeing up the hands for other tasks. This research has involved the investigation of several properties of vibrotactile stimulation in the context of sensory augmentation and sensory substitution [9,12,16,17,[42][43][44].…”

Section: Introductionmentioning

confidence: 99%

Effects of Stimulus Frequency and Location on Vibrotactile Discrimination Performance Using Voice Coil Actuators on the Forearm

et al. 2023

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What are the effects of frequency variation of vibrotactile stimuli on localization acuity? The precise localization of vibrotactile stimuli is crucial for applications that are aimed at conveying vibrotactile information. In order to evaluate the ability to distinguish between vibrotactile stimuli based on their frequency and location on the forearm, we used a relative point localization method. Participants were presented with pairs of sequential vibrotactile stimuli at three possible locations on the forearm and asked to determine whether the second stimulation occurred at the same location as the first one in the pair or not. The stimulation frequency varied between 100 Hz, 150 Hz, 200 Hz and 250 Hz, which covers the range of frequencies that human observers are most sensitive to. The amplitude was kept constant. Our results revealed that the ability to discriminate between actuators remained unaffected by variations in the frequency of vibrotactile stimulation within the tested frequency range. The accuracy of the tactile discrimination task was heavily dependent on the location of the stimulation on the forearm, with the highest accuracy close to the wrist and elbow, locations that may serve as tactile anchor points. Our results highlight the critical role of stimulation location in precise vibrotactile localization and the importance of careful consideration of location in the design of forearm-mounted vibrotactile devices.

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Numerical Investigation on the Acceleration Vibration Response of Linear Actuator

Cited by 3 publications

References 0 publications

Electromechanical Actuators for Haptic Feedback with Fingertip Contact

Electromechanical Actuators for Haptic Feedback with Fingertip Contact

Discrimination Accuracy of Sequential Versus Simultaneous Vibrotactile Stimulation on the Forearm

Effects of Stimulus Frequency and Location on Vibrotactile Discrimination Performance Using Voice Coil Actuators on the Forearm

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