TY - GEN
T1 - Transient hygrothermal behaviour of portable electronics
AU - Punch, Jeff
AU - Grimes, Ronan
AU - Heaslip, Greg
AU - Galkin, Timo
AU - Väkevälinen, Kyösti
AU - Kyyhkynen, Vesa
AU - Elonen, Erkko
PY - 2005
Y1 - 2005
N2 - The theme of this paper is the design of portable electronic systems for hot and humid conditions. In particular, portable products such as mobile phones. CD players and digital cameras can experience high relative humidity and condensation. It is important to understand the behaviour of portable products in different usage environments in order to develop more accurate specifications, simulation models and verification methods. In this paper, the response of portable electronics to time-varying conditions of temperature and humidity is considered in order to assess the conditions likely to precipitate condensation. A first-order coupled hygrothermal model is developed to represent the response of a typical portable product to variations in ambient temperature and humidity. Simple time constants are derived to describe transient hygrothermal response. Experimental characterisation of a sample product is performed to evaluate the parameters of the model, and it is demonstrated how movement from one environment to another can induce condensation to occur on the internal and external surfaces of a portable product.
AB - The theme of this paper is the design of portable electronic systems for hot and humid conditions. In particular, portable products such as mobile phones. CD players and digital cameras can experience high relative humidity and condensation. It is important to understand the behaviour of portable products in different usage environments in order to develop more accurate specifications, simulation models and verification methods. In this paper, the response of portable electronics to time-varying conditions of temperature and humidity is considered in order to assess the conditions likely to precipitate condensation. A first-order coupled hygrothermal model is developed to represent the response of a typical portable product to variations in ambient temperature and humidity. Simple time constants are derived to describe transient hygrothermal response. Experimental characterisation of a sample product is performed to evaluate the parameters of the model, and it is demonstrated how movement from one environment to another can induce condensation to occur on the internal and external surfaces of a portable product.
UR - http://www.scopus.com/inward/record.url?scp=33745683873&partnerID=8YFLogxK
U2 - 10.1109/ESIME.2005.1502837
DO - 10.1109/ESIME.2005.1502837
M3 - Conference contribution
AN - SCOPUS:33745683873
SN - 0780390628
SN - 9780780390621
T3 - Proceedings of the 6th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Micro-Electronics and Micro-Systems - EuroSimE 2005
SP - 398
EP - 405
BT - Proceedings of the 6th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Micro-Electronics and Micro-Systems - EuroSimE 2005
PB - IEEE Computer Society
T2 - 6th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Micro-Electronics and Micro-Systems - EuroSimE 2005
Y2 - 18 April 2005 through 20 April 2005
ER -