Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Archives of Foundry Engineering

1 2021

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: potencjometr

Sortuj według:

Ogranicz wyniki do:

Automatic Measurement System of Hydrated Sodium Silicate Composition Analysis

Wang Huafang, Wang Quanrun, Zhang Wu, Gao Xiang, Lu Jijun

Archives of Foundry Engineering

2021

Vol. 21, iss. 2

5--8

Sodium silicate is one of the most successful inorganic binder. Along with the broad application of sodium silicate for domestic and industrial purposes, the composition analysis, include modulus (m), ratio of SiO2:Na2O, Na2O%, SiO2%, and solid-containing content, is important for the products strength and service life. However, it is perplexing to operate, inefficient and low precision for traditional standard testing method of these parameters. In this study, an automatic measurement system of sodium silicate composition analysis, with the potential electrode for potentiometer titration, micro-controller, PCB, heater, stirrer, printer and micro peristaltic pump, was developed according to the determine method principle. The end-points of pH value in the two titrating steps, first was 4.3 and second was 6.0, were set in the micro-controller to control the reaction in the processing of the sodium silicate composition analysis. And all the potential signals of the pH electrode were transited in the special PCB for the micro-controller.