PRIMARY DETECTOR OF THE MEASURING INSTRUMENT  
OF OUTPUT CHARACTERISTICS OF FLAT SPIRAL SPRINGS 

Shekriladze Maya Davidovna, postgraduate student, Kazan National Research Technical University named after A. N. Tupolev (10 Karl Marks street, Kazan, Russia), Maiechka1991@yandex.ru
Kravchenko Nikolay Aleksandrovich, candidate of technical sciences, associate professor, sub-department of standardization and certification of technology management, Kazan National Research Technical University named after A. N. Tupolev (10 Karl Marks street, Kazan, Russia), krav-1946@mail.ru
Galimov Farid Misbahovich, doctor of technical sciences, professor, head of sub-department of standardization and certification of technology management, Kazan National Research Technical University named after A. N. Tupolev (10 Karl Marks street, Kazan, Russia), far-galim@yandex.ru

681.2.084

Background. The object of the research is to measure the output characteristics of the flat spiral springs, which are responsible element measuring instruments and devices. The subject of research are the primary detectors moment from the angle of twist flat spiral springs. The purpose of the work: the development of the primary detector output characteristics of the flat spiral spring is based on the method of the counterbalancing transformation.
Materials and methods. In the development of the primary detector used methods magnetoelectric and electromagnetic counterbalancing. The analysis of the linear model of the primary detector based on external factors affecting measurement accuracy.
Results. A variant of the design of the primary detector output characteristics of the flat spiral spring with a fundamentally new scheme of counterbalancing.
Conclusions. The proposed option to reduce the effect of friction bearings and moving construction elements on the measurement process.

primary detector, flat spiral spring, moment, electromagnetic counterbalance, magnetoelectric counterbalance