Polimerni piezo merilni lističi za identifikacijo dinamskih veličin

Živec, Gregor (author), Boltežar, Miha (mentor)

Problematika zaključne naloge je določiti občutljivost polimernega piezoelektričnega zaznavala deformacij. Naloga je obravnavana tako teoretično kot praktično. Teoretično je občutljivost določena prek izpeljanih enačb in proizvajalčevih specifikacij, praktično pa je bila obravnava z eksperimentalnim delom prek nosilca. V nalogi smo vpeti konzolni nosilec deformirali s pomočjo stresalnika. Izhodno napetost piezoelektričnega zaznavala in vrednosti deformacij na uporovnem merilnem lističu smo pomerili pri različnih amplitudah in frekvencah. Dobljeni rezultati so bili primerjani z izračunanimi. Rezultati so bili v zaključku komentirani skupaj z napotki za nadaljnje delo.

• Language: Slovenian
• Keywords: polimerni, piezoelektrika, merilni lističi, občutljivost, dinamske veličine
• Work type: Bachelor thesis/paper
• Organization: FS - Faculty of Mechanical Engineering
• Year: 2017
• PID: 20.500.12556/RUL-95457
• Publication date in RUL: 20.09.2017

Secondary language

• Language: English
• Title: The use of piezo polymer strain gauges for measuring dynamic variables

Abstract

The goal of the thesis was to determine the sensitivity of the polymer piezoelectric strain sensor. The assignment was studied both theoretically and practically. The theoretical sensitivity was calculated using derived equations and product specifications. The practical part of the assignment was done using experimental work using the cantilever beam. In the assignment a cantilever beam was mounted and deflected using a dynamic shaker.The voltage output of the piezoelectric strain sensor and the strain readings of the strain gauge was measured at different frequencies and amplitudes. The measured data was then compared with the calculated values. The results were then commented on in the in the final chapter together with possible further improvements.

• Keywords: polymer, piezoelectric, strain gauge, sensitivity, dynamic variables