Pressure Sensors for Pressure Garment
Soto de la Cruz, Ana María (2012)
2012
Master's Degree Programme in Science and Bioengineering
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Hyväksymispäivämäärä
2012-03-07
Julkaisun pysyvä osoite on
http://urn.fi/URN:NBN:fi:tty-201205161131
http://urn.fi/URN:NBN:fi:tty-201205161131
Tiivistelmä
Pressure garments, also called compression garments, are used for the treatment of hypertrophic scars, venous insufficiency, lymphoedema and other illnesses. The beneficial influence of pressure on the treatment of hypertrophic scars has not been scientifically proven. For other illnesses such as venous diseases, there exists an international disagreement on the optimal level of pressure to be applied in order to obtain beneficial results. The reason for these is the difficulties in measuring the interface pressure between the pressure garment and the skin.
This work focused in the enhancement and study of the structure of an inductively coupled pressure sensor for pressure garment application. A three-dimensional model of the sensor using finite element analysis (FEA) was constructed. The model served to study the behavior of the sensor with different membrane dimensions and to study the influence of the mechanical properties of the materials in the sensor results. Three different membrane designs were developed and constructed. The sensor prototypes were tested and they behaved similarly to the constructed model. A bossed membrane made of transparency film was found to have a linear behavior and a measurement range from 0 to 65 mmHg. These results lead to future reduction in size and enhancement of the behavior of the inductively coupled pressure sensor
This work focused in the enhancement and study of the structure of an inductively coupled pressure sensor for pressure garment application. A three-dimensional model of the sensor using finite element analysis (FEA) was constructed. The model served to study the behavior of the sensor with different membrane dimensions and to study the influence of the mechanical properties of the materials in the sensor results. Three different membrane designs were developed and constructed. The sensor prototypes were tested and they behaved similarly to the constructed model. A bossed membrane made of transparency film was found to have a linear behavior and a measurement range from 0 to 65 mmHg. These results lead to future reduction in size and enhancement of the behavior of the inductively coupled pressure sensor