Generátor signálů teplotních čidel

Abstract

The bachelor's thesis deals with the design and implementation of a device for simulating the behavior of a temperature resistance sensor and a thermocouple. This device allows the connection of a wide range of measuring instruments, making it a versatile tool for testing and calibration. It is primarily intended for use in experimental environments where it is necessary to simulate sensor responses at temperatures that are difficult to achieve under real conditions. The thesis includes a general analysis of the operating principles of resistance temperature detectors and thermocouples, along with an overview of their different types. The theoretical part further focuses on methods for approximating the desired resistance and voltage values generated by these sensors. These approaches form the basis for the design of the simulation device. The practical part of the thesis focuses on the circuit design for simulating a resistance temperature sensor (PT100) and a type K thermocouple. It describes the entire process from the selection of an appropriate solution, through the detailed circuit design, to the analysis of the components used. The design also includes the calculation of the values of individual electronic components. The final part of the thesis is devoted to the actual implementation of the device — from the design and production of the printed circuit board to the measurement and calibration of the output values to ensure they accurately mimic the real behavior of actual sensors.