Introduction to the Acoustic Camera
Nguyen, Hong (2020)
2020
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2020052112823
https://urn.fi/URN:NBN:fi:amk-2020052112823
Tiivistelmä
Noise, or unwanted sound, has been proven to have a negative effect on human health. It is in the best interests of companies and industries to design the quietest product possible, and to make use of unexpected noises as a means of identifying problems with the final product. These situations require the source of noise emissions to be located.
An acoustic camera system utilizes beamforming to identify regions of high sound pressure level on an optical image. The aim of this thesis is to introduce the acoustic camera and its capabilities to other students, by way of documenting my experiences working with the acoustic camera system possessed by Metropolia University of Applied Sciences.
Measurements conducted in various situations confirmed the camera’s ability to locate sound sources. Several shortcomings within the camera setup that led to reduced efficiency in the operation of the camera were recognized, and better measurement practices may lead to improved results. The thesis focuses on the creation of acoustic images; more advanced data analysis options are beyond the scope of this paper.
An acoustic camera system utilizes beamforming to identify regions of high sound pressure level on an optical image. The aim of this thesis is to introduce the acoustic camera and its capabilities to other students, by way of documenting my experiences working with the acoustic camera system possessed by Metropolia University of Applied Sciences.
Measurements conducted in various situations confirmed the camera’s ability to locate sound sources. Several shortcomings within the camera setup that led to reduced efficiency in the operation of the camera were recognized, and better measurement practices may lead to improved results. The thesis focuses on the creation of acoustic images; more advanced data analysis options are beyond the scope of this paper.