Automated System for Physical Fields Measurements Based on a Quasi-distributed Resistive Sensor
Ilnaz Shafigullin, Evgeny S. Denisov, Yu. K. Evdokimov · 2021 International Ural Conference on Electrical Power Engineering (UralCon) · 2021
This paper presents a design of the automated system for measuring physical fields based on a quasi-distributed resistive sensor with a tree-like structure. Software for control of an automated measuring system in manual and automatic modes is developed. The sensor is built using the original tree-like structure, which separates the paths of the probing and measuring currents. The prototype of the system based on microcontroller STM32F411, 14-bit current DAC, and 16-bit ADC is developed and tested. The experimental study shows possibility to achieve measurement errors lower than 0.3%. The higher accuracy can be reached with equipment that is more precise. The proposed measuring system can be adapted to measure various physical fields by means of the appropriate resistive sensors.