Temperature measurement using transistor as a sensor / Salfariza Rozali and Siti Sarah Puteh

Today, we actually on the go to the new era of technologies time past and change and everyone try to find something different from the latest technology. Computing, communication information technology and microelectronics are the most interested field that scientist concentrate.
Thus, we try to familiarize ourselves with die part of this technology by construct the project, which use to measure temperature using commercially available sensor. This simple temperatures sensor built around a transistor [used as the diode] and a single chip analogue to digital converter [ADC] CUM 3 'A digit LED driver ICL 7107. We also use transistor T2 us the sensor. It system have two present level higher and lower level.
For our project, we also use a few passive components that easy to get from our local electronic supplies. The component such a resistor, capacitor and diode, some active component as linear ICS and transistor.
Finally, from displaying the temperature with a resolution of oil this project provides from temperature based relay activation for the controlling heater coders, iron and also at air conditioner.