Comparison of implementations of driving electronics for ultrasonic oscillating sensors

Author

Popejoy, P. ; Alzebda, S. ; Hashmi, A. ; Harriott, M. ; Sonbul, Omar ; Kalashnikov, A.N. ; Hayes-Gill, B.R.

Author_Institution

Dept. Electr. & Electron. Eng., Nottingham Univ., Nottingham, UK

fYear

2012

fDate

7-10 Oct. 2012

Firstpage

2427

Lastpage

2430

Abstract

An oscillating ultrasonic sensor can be built using a pair of ultrasonic transducers and an amplifier but this configuration is insufficient for getting consistent output readings within a single frequency interval. Inclusion of a band pass filter and phase shifter enables frequency interval limiting and setting the desired frequency at the sensor´s calibration point. These circuits are implemented using various construction techniques and components and are discussed in the paper along with two relevant block diagrams, one being convenient for research purposes and the other for production. Experimental results obtained for temperature and tilt sensors are presented.

Keywords

amplifiers; band-pass filters; detector circuits; driver circuits; phase shifters; ultrasonic transducers; band pass filter; driving electronics; frequency interval limit; frequency interval setting; phase shifter; sensor calibration point; temperature sensor; tilt sensor; ultrasonic oscillating sensor; ultrasonic transducer; Acoustics; Band-pass filters; Oscillators; Resonant frequency; Temperature measurement; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2012 IEEE International

Conference_Location

Dresden

ISSN

1948-5719

Print_ISBN

978-1-4673-4561-3

Type

conf

DOI

10.1109/ULTSYM.2012.0607

Filename

6562170