Hiteg - News

HITEG (Health Involved Technical engineering Group) Lab deals with:

Design and develop of biosensors

Design and develop of an automatized measurement bench

Measurement and characterization of bend sensors for biomedical applications

Design of biosensor networks

Design and realization of electronic circuitry for pre-post data treatment of bioelectrical signals

Design and realization of wired and/or wireless electronic interfaces

Design and realization of Body Area Networks (BAN) and Wireless Body Area Network (WBAN)

Data analysis and classification

Design and realization of graphical interface

Virtual Reality Implementation

BCI (Brain Computer Interface) systems

In order to measure human body kinematics it is convenient to adopt sensors which can measure bending angles with good precision, in the order of 1, despite a low cost. Such sensors can be furnished by new technology based on film printing. We can be able to develop such sensors by ourselves and/or to identify commercial sensors as far as our requests. Sensors can be made of a polyester base material printed on with a special carbon ink. The polyester acts as a support while the ink's resistance decreases the more it is bent. The ink is screen printed so it can be applied on virtually any custom shape and size film. The substrate film material is usually formed by Kapton and/or Mylar for their properties, stands the fact that substrate must be able to bend repeatedly without failure for the sensor to work. The sensor can be over-molded (for instance with silicon or urethane) and it can work in dirty environments (oil, dust, flour). In order to useful exploit sensor's properties, it is mandatory a complete electro-mechanical characterization. For this a fully automatized measurement bench will be realized and sensors will be modeled from both mechanical and electrical point of views. We propose an ourselves design of the bench and sensor modeling stands lacks in literature in that sense. Sensor's characteristics will be then exploit to realize instrumented garment to be don for revealing human motions. In particular we propose the realization of a sensorized glove to measure all the finger's degree of freedom. In such a way recorded data can be utilized to realize communication and/or implement robotized actions thanks to the analysis, interpretation and classification of recorded data. For proposed aim we will design and develop electronic circuitry for pre-conditioning, transmitting, post-conditioning recorded signals. A virtual reality with personal computer graphic will be realized too. In such a way we will obtain both an immediate feedback on what is going on and the potentiality of implement virtually any kind of actions.

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