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Mak, Robin (author), Amoozandeh, A. (author), Radaelli, G. (author), Herder, J.L. (author)Differential mechanisms are remarkable mechanical elements that are widely utilized in various systems; nevertheless, conventional differential mechanisms are heavy and difficult to use in applications with limited design space. This paper presents a curved differential mechanism that utilizes a lightweight, compliant structure. This...journal article 2024
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Guo, P. (author)This thesis presents the design and implementation of integrated ultrasound transceivers for use in transfontanelle ultrasonography (TFUS). Two generations of ultrasound transceiver ASICs integrated with PZT transducer arrays intended for TFUS are presented. In the first generation, a novel AFE design that combines an LNA with the continuous TGC...doctoral thesis 2023
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van Riessen, Bram (author)Relocated haptic feedback from the fingertip to the proximal phalanx can alter the perception of physical interactions by simultaneously displaying relocated multimodal tactile cues. However, how these relocated tactile cues alter the vibrotactile sensitivity of the fingertip remains unclear. This two-site stimulation study employs a...master thesis 2023
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Heijs, Floor (author)Background: Knee Osteoarthritis (KOA) is the predominant form of osteoarthritis, and its incidence is anticipated to rise due to an ageing and increasingly overweight population. Altering the Foot Progression Angle (FPA) has demonstrated potential in mitigating the progression of KOA. Wearable feedback methods, especially those utilising single...master thesis 2023
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Bult, Matthijs (author)This thesis presents recommendations based on a case study focused on thecircular redesign of a wearable, single use medical device. The study addressesa knowledge gap by offering insights into the circular (re)design for products.The proposed (re)design of the system leads to a substantial reduction of CO2emissions, with...master thesis 2023
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Griffith, Kiana (author)This thesis analyzes and describes a wearable pressure sensor to detect intraocular pressure and guide clinician diagnosis of glaucoma. Although glaucoma has many<br/>symptoms and risk factors, high intraocular pressure is the most predominant. A method to continuously and accurately record intraocular pressure measurements and fluctuations in a...master thesis 2023
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van der Voort, Niels (author)Heart rate data and other data collected by consumer-grade wearable devices can give away quite useful information about the user. It can for example be used by machine learning algorithms such as Deep Neural Networks (DNN) to learn patterns about cardiovascular disease and fitness, or be used for identification. Heart rate patterns can also...bachelor thesis 2023
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Chiriţă, Matei (author)The aim of this paper is to complete the gap in the knowledge and experiment using as little as only the heart rate of some subjects to manage to successfully authorise them in some supposed system. The focus will be on the Gaussian Mixture model and the One Class Support Vector Machine, both outlier detectors, because most of the past research...bachelor thesis 2023
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van Leeuwen, Clint (author)The focus of this project was the research and development of an affective social touch wearable. AffectiveAir uses pneumatic actuation on the shoulder to convey a library of haptic sensations. The goal was to overcome physical limitations in potential digital communication contexts, by a non-verbal, tactile, and possibly intimate social touch...master thesis 2023
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Kim, June (author)Anxiety is a natural “fight-or-flight” response that everybody experiences to perceived stress or threat. Even though it is a natural response, some individuals struggle with managing their anxiety levels in a healthy manner. Prolonged exposure to high anxiety states can lead to clinical anxiety disorders that negatively impact the quality of...master thesis 2023
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van den Oever, Sam (author)A growing energy demand has sparked interest into harvesting energy from the human body. Often, a rotational proof mass is used to harness energy for a wearable from kinetic motion of its user. The addition of a spring has the potential to significantly increase efficiency for these low-power rotational energy harvesters. In this research a...master thesis 2023
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Starkenburg, Anna (author)This report presents an explorative study in finding solutions for finger tremor patients diagnosed with Essential Tremor (ET). Tremors restrict patients from performing delicate movements, creating difficulty in daily activities, such as drinking, writing, cooking or eating. Besides the challenges in performing tasks, social anxiety often...master thesis 2023
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de Vries, Joris (author)This report describes the development of a redesigned haptic glove for SenseGlove, a Delft-based startup specializing in haptic technologies for use in Virtual Reality. Their Nova product line offers force feedback, haptics, and finger tracking to increase immersion in VR and provide intuitive interaction with virtual objects for training...master thesis 2023
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Smulders, M. (author), van Dijk, L.N.M. (author), Song, Y. (author), Vink, P. (author), Huysmans, T. (author)When designing wearables that interface with the human head, face and neck, designers and engineers consider human senses, ergonomics and comfort. A dense 3D pressure discomfort threshold map could be helpful, but does not exist yet. Differences in pressure discomfort threshold for areas of the head, neck and face were recorded, to create a 3D...journal article 2023
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Haarman, Claudia J.W. (author), Hekman, Edsko E.G. (author), Rietman, Johan S. (author), van der Kooij, H. (author)In this paper we presented the mechanical design and evaluation of a low-profile and lightweight exoskeleton that supports the finger extension of stroke patients during daily activities without applying axial forces to the finger. The exoskeleton consists of a flexible structure that is secured to the index finger of the user while the thumb...journal article 2023
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Ciszewski, M.G. (author), Söhl, J. (author), Jongbloed, G. (author)The past decade has seen an increased interest in human activity recognition based on sensor data. Most often, the sensor data come unannotated, creating the need for fast labelling methods. For assessing the quality of the labelling, an appropriate performance measure has to be chosen. Our main contribution is a novel post-processing method...journal article 2023
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Ghodrat, S. (author), Sandhir, P. (author), Huisman, G. (author)Wearable haptic assistive devices can provide tactile information to visually impaired people (VIP) to support independent living. However, electromechanical haptic feedback has a number of disadvantages, including hardware being relatively heavy, large, and producing excessive sound. Here, we present a design-driven investigation of the...journal article 2023
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Wang, Hanyu (author), Chen, Dengkai (author), Huang, Y. (author), Zhang, Yahan (author), Qiao, Yidan (author), Xiao, Jianghao (author), Xie, Ning (author), Fan, Hao (author)This study aimed to enhance the real-time performance and accuracy of vigilance assessment by developing a hidden Markov model (HMM). Electrocardiogram (ECG) signals were collected and processed to remove noise and baseline drift. A group of 20 volunteers participated in the study. Their heart rate variability (HRV) was measured to train...journal article 2023
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van Wegen, M. (author), Herder, J.L. (author), Adelsberger, Rolf (author), Pastore-Wapp, Manuela (author), Van Wegen, Erwin E H (author), Bohlhalter, Stephan (author), Nef, Tobias (author), Krack, Paul (author), Vanbellingen, Tim (author)We often interact with our environment through manual handling of objects and exploration of their properties. Object properties (OP), such as texture, stiffness, size, shape, temperature, weight, and orientation provide necessary information to successfully perform interactions. The human haptic perception system plays a key role in this. As...review 2023
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de Vries, W.H.K. (author), van der Slikke, R.M.A. (author), van Dijk, M.P. (author), Arnet, Ursina (author)Daily wheelchair ambulation is seen as a risk factor for shoulder problems, which are prevalent in manual wheelchair users. To examine the long-term effect of shoulder load from daily wheelchair ambulation on shoulder problems, quantification is required in real-life settings. In this study, we describe and validate a comprehensive and...journal article 2023