Purpose This paper aims to explore the electronic design of the Touch Hand: a low-cost electrical... more Purpose This paper aims to explore the electronic design of the Touch Hand: a low-cost electrically powered prosthetic hand. The hand is equipped with an array of sensors allowing for position control and haptic sensation. Pressure sensors are used on the fingertips to detect grip force. A temperature sensor placed in the fingertip is used to measure the contact temperature of objects. Investigations are made into the use of cantilever vibration sensors to detect surface texture and object slippage. The hand is capable of performing a lateral grip of 3.7 N, a power grip of 19.5 N and to passively hold a weight of up to 8 kg with a hook grip. The hand is also tested on an amputee and used to perform basic tasks. The amputee took 30 min to learn how to operate the hands basic gripping functions. Design/methodology/approach Problems of previous prosthetic hands were investigated, followed by ways to improve or have similar capabilities, yet keeping in mind to reduce the price. The hand...
2015 Pattern Recognition Association of South Africa and Robotics and Mechatronics International Conference (PRASA-RobMech), 2015
The control of the Touch Hand: a low-cost electrically powered prosthetic hand is explored in thi... more The control of the Touch Hand: a low-cost electrically powered prosthetic hand is explored in this paper. A novel Haptic User Interface is proposed and tested as a supplement for amputee-prosthetic EMG control. The performance of the prosthetic hand is tested through gripping tests. The hand is capable of performing a lateral grip of 3.7 N, a power grip of 19.5 N and to passively hold a weight of up to 8 kg with a hook grip. The hand is also tested on an amputee and used to perform basic tasks. The amputee took 30 min to learn how to operate the hands basic gripping functions.
The control of the Touch Hand: a low-cost electrically powered prosthetic hand is explored in thi... more The control of the Touch Hand: a low-cost electrically powered prosthetic hand is explored in this paper. A novel Haptic User Interface is proposed and tested as a supplement for amputee-prosthetic EMG control. The performance of the prosthetic hand is tested through gripping tests. The hand is capable of performing a lateral grip of 3.7 N, a power grip of 19.5 N and to passively hold a weight of up to 8 kg with a hook grip. The hand is also tested on an amputee and used to perform basic tasks. The amputee took 30 min to learn how to operate the hands basic gripping functions.
ABSTRACT This paper looks at various existing upper limb prostheses both from the commercial and ... more ABSTRACT This paper looks at various existing upper limb prostheses both from the commercial and research area. It assesses what has been achieved in the commercial field as well as its shortcomings. State-of-the-art research on upper limb prosthetics is reviewed and the progress over the last decade is touched on briefly. The paper then considers haptic feedback and myoelectric control, two cutting-edge technological fields within the field of prosthetics. A comparison is made between current and past upper limb prostheses and improvements to these prostheses are discussed. Suggestions for future work are made to incorporate and develop haptic feedback and more advanced control algorithms to further improve the current prosthetics. Myoelectric control is identified as the most limiting factor to the progress of upper limb prosthetics.
ABSTRACT This paper looks at various existing upper limb prostheses both from the commercial and ... more ABSTRACT This paper looks at various existing upper limb prostheses both from the commercial and research area. It assesses what has been achieved in the commercial field as well as its shortcomings. State-of-the-art research on upper limb prosthetics is reviewed and the progress over the last decade is touched on briefly. The paper then considers haptic feedback and myoelectric control, two cutting-edge technological fields within the field of prosthetics. A comparison is made between current and past upper limb prostheses and improvements to these prostheses are discussed. Suggestions for future work are made to incorporate and develop haptic feedback and more advanced control algorithms to further improve the current prosthetics. Myoelectric control is identified as the most limiting factor to the progress of upper limb prosthetics.
Purpose This paper aims to explore the electronic design of the Touch Hand: a low-cost electrical... more Purpose This paper aims to explore the electronic design of the Touch Hand: a low-cost electrically powered prosthetic hand. The hand is equipped with an array of sensors allowing for position control and haptic sensation. Pressure sensors are used on the fingertips to detect grip force. A temperature sensor placed in the fingertip is used to measure the contact temperature of objects. Investigations are made into the use of cantilever vibration sensors to detect surface texture and object slippage. The hand is capable of performing a lateral grip of 3.7 N, a power grip of 19.5 N and to passively hold a weight of up to 8 kg with a hook grip. The hand is also tested on an amputee and used to perform basic tasks. The amputee took 30 min to learn how to operate the hands basic gripping functions. Design/methodology/approach Problems of previous prosthetic hands were investigated, followed by ways to improve or have similar capabilities, yet keeping in mind to reduce the price. The hand...
2015 Pattern Recognition Association of South Africa and Robotics and Mechatronics International Conference (PRASA-RobMech), 2015
The control of the Touch Hand: a low-cost electrically powered prosthetic hand is explored in thi... more The control of the Touch Hand: a low-cost electrically powered prosthetic hand is explored in this paper. A novel Haptic User Interface is proposed and tested as a supplement for amputee-prosthetic EMG control. The performance of the prosthetic hand is tested through gripping tests. The hand is capable of performing a lateral grip of 3.7 N, a power grip of 19.5 N and to passively hold a weight of up to 8 kg with a hook grip. The hand is also tested on an amputee and used to perform basic tasks. The amputee took 30 min to learn how to operate the hands basic gripping functions.
The control of the Touch Hand: a low-cost electrically powered prosthetic hand is explored in thi... more The control of the Touch Hand: a low-cost electrically powered prosthetic hand is explored in this paper. A novel Haptic User Interface is proposed and tested as a supplement for amputee-prosthetic EMG control. The performance of the prosthetic hand is tested through gripping tests. The hand is capable of performing a lateral grip of 3.7 N, a power grip of 19.5 N and to passively hold a weight of up to 8 kg with a hook grip. The hand is also tested on an amputee and used to perform basic tasks. The amputee took 30 min to learn how to operate the hands basic gripping functions.
ABSTRACT This paper looks at various existing upper limb prostheses both from the commercial and ... more ABSTRACT This paper looks at various existing upper limb prostheses both from the commercial and research area. It assesses what has been achieved in the commercial field as well as its shortcomings. State-of-the-art research on upper limb prosthetics is reviewed and the progress over the last decade is touched on briefly. The paper then considers haptic feedback and myoelectric control, two cutting-edge technological fields within the field of prosthetics. A comparison is made between current and past upper limb prostheses and improvements to these prostheses are discussed. Suggestions for future work are made to incorporate and develop haptic feedback and more advanced control algorithms to further improve the current prosthetics. Myoelectric control is identified as the most limiting factor to the progress of upper limb prosthetics.
ABSTRACT This paper looks at various existing upper limb prostheses both from the commercial and ... more ABSTRACT This paper looks at various existing upper limb prostheses both from the commercial and research area. It assesses what has been achieved in the commercial field as well as its shortcomings. State-of-the-art research on upper limb prosthetics is reviewed and the progress over the last decade is touched on briefly. The paper then considers haptic feedback and myoelectric control, two cutting-edge technological fields within the field of prosthetics. A comparison is made between current and past upper limb prostheses and improvements to these prostheses are discussed. Suggestions for future work are made to incorporate and develop haptic feedback and more advanced control algorithms to further improve the current prosthetics. Myoelectric control is identified as the most limiting factor to the progress of upper limb prosthetics.
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Papers by Drew van der Riet