Testing accuracy and response of temperature sensors

Tema ovog rada je ispitivanje točnosti i odziva temperaturnih senzora. Temperaturni senzor je uređaj koji vrši pretvorbu temperature neposredno u električnu veličinu ili električni parametar. U radu je opisano mjerenje temperature, temperaturni senzori te njihovi osnovni parametri i parametri koji utječu na točnost senzora. Također je opisan način povezivanja senzora s mikrokontrolerom i način korištenja. Za ispitivanje temperaturnih senzora u kontroliranim uvjetima napravljen je uređaj pomoću kojeg se provelo ispitivanje. Nakon što je na Arduino učitan kod, vrijednosti s temperaturnih senzora slale su se preko Bluetooth modula i upisivale u Excel tablicu pomoću programa PLX-DAQ. Provedena su tri ciklusa mjerenja za temperature od 40 °C do 51 °C. Prikazani su usporedni rezultati svih senzora.The topic of this paper is testing the accuracy and response time of temperature sensors. Temperature sensor is a device that detects temperature and converts it directly to an electrical size or electrical parameter. This paper describes measurement of the temperature, temperature sensors and their basic parameters, and parameters that affect the accuracy of the sensors. Furthermore, the method of connecting the sensor with the microcontroller and the method of use is also described. In order to test temperature sensors in controlled conditions, a homemade device was made and used. Finally, after the code was uploaded to the Arduino, temperature sensor values were sent, via Bluetooth module, and entered in the Excel table using the PLXDAQ program. Three measurement cycles were carried out for temperatures from 40 °C to 51 °C. Comparative results of all sensors are shown