The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A novel three-dimensional force flexible tactile sensor based on pressure-conductive rubber is presented. The sensor has good flexibility and can be used to measure three-dimensional force. Its major principle is that we can obtain applied force through detecting pressure-conductive rubber's resistance. The preliminary results of the pressure-conductive rubber's finite element analysis and simulation...
The static coupling of multi-axis force sensor is a major influencing factor to its measuring precision. Aiming at resolving the disadvantages such as low decoupling precision of the traditional method, we put forward a linear decoupling method based on neural network. Firstly, this paper analyzes the reasons why coupling exists in the multi-axis force sensor, and then according to this phenomenon,...
This paper presents a novel sensing information forecasting algorithm based on time series analysis for the power assist walking legs (PAWL). The goal of this algorithm is to improve the dynamic response of the exoskeleton. The algorithm is built up with the autoregressive (AR) model, the recursive least square (RLS) method and the final prediction error (FPE) criterion. The method of RLS is utilized...
The power assist walking legs (PAWL) is an autonomous exoskeleton robot which is designed for assisting activities of daily life. In order to improve the dynamic response of the exoskeleton robot, a novel sensing information forecasting algorithm is proposed based on the time series analysis. The algorithm is built up with the autoregressive (AR) model, the recursive least square (RLS) method and...
The elastic body structure of six-axis force sensor based on the double layer E-type membrane has been used in the normal situation maturely. In this paper, the possibility of the same elastic body structure used in the micro-operation is discussed. The working principle of the sensor structure is introduced firstly, and the static and dynamic characteristics of the elastic body are obtained by finite...
In order to acquire the interaction force between fingers of robot and the grasped object more accurately, this paper develops a kind of novel multi-dimension finger force sensor used in robots. This sensor uses double E-type diaphragm structure, according to the characteristic of force bearing and different bridge connection modes, it solves contradiction between the microminiatured of the multi-dimension...
The Wearable Power Assist Leg(WPAL) in Feng Chen, et al, (2007) is designed for normal human power augmentation during walking. In this paper, the Force-sensors system of the WPAL has been theoretically analyzed and technically realized in order to gain the interactive movement information of human-robot system for the aim of estimating the operator's intentions and realizing to provide enough assistive...
This research considers a human-limb power assist system, which can feedback the power- damped operating forces to human. The system can easily suitable to a person without using EMG sensor and knowing limb's mass, viscosity and elasticity. The control method, assist rate and system unit are discussed in this paper. Lastly, experimental verification on the proposed approach is performed and its results...
In this paper, an arm wrestling robot (AWR) is developed for amusement and developing/strengthening human arm muscles. Everyone regardless of age, sex, weight, dexterity or experience can enjoy it. The AWR arm has 2-DOF, integrated with mechanical parts, elbow/wrist force sensor, motor, encoder and driver, can measure real-time elbow/wrist force of the player during Arm Wrestling game. In this paper,...
In the paper, a multi-sensors perceptual system is proposed for a wearable power assist leg(WPAL) which is designed for the elderly or disabled people to enhance strength and endurance during walking. WPAL estimates the wearer's intentions from the interactive movement information of human- WPAL system such as the leg reaction force (LRF), the ground reaction force(GRF) and the joint angle. So, the...
For dexterously performing object grasping and manipulation with multifingered hand of robot, sensing the fingertip forces with high-stiffness and high-sensitivity is desired. In general, from previous sensing structures, if the stiffness of a sensor is made be higher, its sensitivity is reduced. This paper proposes a novel mechanism called strain-deformation expansion mechanism for 3-axis force sensing...
In this paper, we develop a novel digital-shot system for sensing the throwing force information of shot-put athletes in real time. The digital-shot has been designed and manufactured with the same external dimensions and weight as the normal shot for open females. The three axes integrated accelerometer, as a crucial device in the force sensing system, can acquire the kinetics data along three orthogonal...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.