Sistemul de monitorizare a temperaturii

Abstract

The multichannel temperature probe for studying the behavior of thermal fields is described in this article. As temperature sensors used Chromel - Alumel thermocouples. Thermoelectric each thermocouple (from 11mV to 13mV) increased its own amplifier to output voltage from 0 to 5 V corresponds to a temperature ranging from 0 to 50oC. The optimal solution for this case was the use of two-stage amplifier based on low-noise operational amplifiers. Data converting, data collection and data transfer to PC is based on ATMEGA16 microprocessor company Atmel. Signals from the amplifier module used for the analog inputs of microprocessor.