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Automatization of contact pressure measurement between trunk orthosis and patient's body using a matrix tactile sensor

Hudák R., Rajťúková V., Živčák J.

Acta Mechanica et Automatica

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2015

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Vol. 9, no. 1

38--43

EN

Trunk orthosis affects trunk by a corrective-pressure mode with an objective to correct deformities (e.g. scoliosis). The effectiveness of this function depends on various factors, i.e. correct orthosis manufacture, correct application to patients and regular pressure corrective effect control. All these factors can be monitored by a system for measurement and evaluation of the contact pressure between the instrument and trunk in a real time and also by a so called “off line” system data recording. Presented article describes the application of made-to-measure sensor system TACTILUS (Sensor Products, USA) in different regimes (ambulance – A, home – H, combined – HA and multi-sensory ambulance – MA regime), testing of chosen static and dynamic matrix tactile sensor (MTS) parameters and results of the testing application between orthosis and patients' trunks.

2

Material and Thermal Analysis of Laser Sintered Products

Hudák R., Šarik M., Dadej R., Živčák J., Harachová D.

Acta Mechanica et Automatica

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2013

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Vol. 7, no. 1

15-19

EN

Thermal analysis of laser processes can be used to predict thermal stresses and consequently deformation in a completed part. Analysis of temperature is also the basic for feedback of laser processing parameters in manufacturing. The quality of laser sintered parts greatly depends on proper selection of the input processing parameters, material properties and support creation. In order to relatively big heat stress in the built part during sintering process, the thermal simulation and thermal analysis, which could help better understand and solve the issue of parts deformations is very important. Main aim of presented work is to prepare input parameters for thermal simulations by the use of RadTherm software (Thermoanalytics Inc., USA), directly during the sintering process and after the process and find out the impact of the heat stress on a final shape and size of the prototype. Subsequently, an annealing process of constructed products after DMLS could be simulated and specified.

3

IR-thermography in SCI individuals rehabilitation diagnostics

Hudák R., Živčák J., Molčányi T., Kneppo P.

Elektronika : konstrukcje, technologie, zastosowania

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2004

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Vol. 45, nr 8-9

117-119

EN

Exercise induces muscle contraction, and in interactivity with cardiovascular and respiratory system produces heat, which dilates by conduction through the tissue to body surface. In individuals with spinal cord injury (SCI) autonomiec disruption, immobility and inactivity play critical roles in affecting peripheral vascular circulation.

PL

Ćwiczenie gimnastyczne wywołuje skurcz mięśni, a w interakcji z układem krążenia oraz układem oddechowym wytwarza ciepło, które rozprzestrzenia się w wyniku przewodnictwa poprzez tkankę do powierzchni ciała. U osób z urazem rdzenia kręgowego autonomiczne przerwanie, unieruchomienie oraz brak aktywności odgrywają kluczową rolę w oddziaływaniu na krążenie obwodowe.