Elektromehanički pokretač za snimanje vibracijskih evociranih potencijala

master's thesis

• Title (english): Electro mechanic actuator for recording of vibration evoked potentials
• Author: Matija Nežić
• Mentor: Igor Krois (mentor)
• Committee member: Igor Krois (predsjednik povjerenstva)
• Committee member: Damir Žarko (član povjerenstva)
• Committee member: Mario Cifrek (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2016-02-22, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

U ovom radu je dan kompletan prikaz dimenzioniranja i izrade aktuatora. Prvo su prema analitničkim izrazima određene dimenzije aktuatora, prema sili koju aktuator treba ostvariti da bi se mogao gibati zadanom frekvencijom i masom. Zatim je na računalu modeliran aktuator istih dimenzija i dobivena sila je preko 50% manja nego li je izračunata. Razlog su rasipni magnetski tokovi koji se zatvaraju van zračnog raspora, gdje se nalazi zavojnica. Dimenzioniranje je nastavljeno na računalu i određene su dimenzije aktuatora koji stvara izračunatu silu na zavojnicu. U dimenzioniranju na računalu je riješen problem gibanja zavojnice kroz zračni raspor sa linearnim ležajem i učvršćenje za osovinu ležaja. Prvo je rađen pokretni dio aktuatora, zavojnica i osovina koji su zajedno povezani aluminijskim diskom. Stator aktuatora je izrađen od željeza i magneta, koji su međusobno učvršćeni. Ispitivanje je dalo vrlo zadovoljavajuće rezultate.

Abstract (english)

This paper presents a complete overview of projecting and making an actuator. First, according to analitic expression certain dimension of actuator are calculated according to the force which actuator must realize to move with wanted frequency and mass. Actuator is modeled on computer in actual size and the resulting force is more then 50% lower as it is calculated. Main reason for that is flux leakage which is closing out of the air gap where the coil is. Dimensioning is continued on computer and then are determined dimensions of the actuator that produces a calculated force to the coil. The dimensioning on the computer is solved the problem of motion the coil through the air gap with linear bearing and fixing the coil for the shaft of bearing. First is made the movable part of actuator, the coil and the shaft that are linked together for aluminum disc. Stator of the actuator is made of iron and the magnets, which are fixed to each other. Testing the actuator gave us expected results.

• Keywords: Aktuator; voice coil; dimenzioniranje; magnetski tok; zavojnica; magnet
• Keywords (english): Actuator; voice coil; dimensioning; magnetic flux; coil; magnet
• Language: croatian
• URN:NBN: urn:nbn:hr:168:249716
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2018-02-06 10:54:17