Nabojsko pojačalo za piezoelektrički hidrofon

undergraduate thesis

• Title (english): Charge Amplifier for Piezoelectric Hydrophone
• Author: Marin Sinožić
• Mentor: Vedran Bilas (mentor)
• Committee member: Vedran Bilas (predsjednik povjerenstva)
• Committee member: Darko Vasić (član povjerenstva)
• Committee member: Davorin Ambruš (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2019-07-12, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

U okviru rada dizajnirano je nabojsko pojačalo za piezoelektrički hidrofon Aquarian AS-1. Prvo je razmatran teorijski model ultrazvučne podvodne komunikacije i primjene nabojskih pojačala kao pretpojačala za piezoelektričke senzore. Zatim je simuliran rad nabojskog pojačala u alatu TINA TI. Nadalje, sklop je implementirapojačanjan na tiskanoj pločici. Elektronički mjerni lanac radi sa signalima u rasponu frekvencija 24 kHz do 28 kHz. Ukupna potrošnja nabojskog pojačala je 235 μA. Predložen je dizajn mjernog lanca s automatskim reguliranjem pojačanja.

Abstract (english)

In this Bachelor's thesis a two-stage charge amplifier has been designed for use in conjunction with a piezoelectric hydrophone Aquarian AS-1. Firstly, a theoretical model describing the application of charge amplifiers in ultrasonic underwater communications has been examined. Then, the charge amplifier has been modelled in Tina TI circuit simulation tool. The circuit has been implemented on a printed circuit board. The developed electronic signal chain consumes 235 μA of current and it has been designed to work with signals in the 24 kHz to 28 kHz frequency range. A design implementing automated gain control has been proposed.

• Keywords: piezoelektrički senzor; nabojsko pojačalo; automatsko reguliranje pojačanja
• Keywords (english): piezoelectric sensor; charge amplifier; automatic gain control
• Language: croatian
• URN:NBN: urn:nbn:hr:168:000720
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2020-01-07 22:00:37