Here at http://group96bjt.blogspot.co.uk/ you'll find the blog for our year 2 project blog titled "An accurate thermometer by using BJT" , by Wu Anran and Wang Silu, supervised by Prof Hall Steve.
This project demanded an accurate thermometer using bipolar junction transistors. To design a circuit using components with BJT to achieve the target which is supposed to be related with temperature. The idea solution is to find linear relationship between elements in BJT circuit and temperature. During the project, simulated in PSpice can determine the correctness of the circuit. We were enable to get range of temperature by using hair dryer and calculating the potential difference with different temperature change. Taking into account the hair dryer heat the transistor too fast, a digital thermometer used for calibrating and measuring the temperature. For more information, please visit our blog.