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Remotely Controlled Laboratory Setup for Active Noise Control and Acoustic Experiments
Blekinge Institute of Technology, School of Engineering, Department of Electrical Engineering.
Blekinge Institute of Technology, School of Engineering, Department of Electrical Engineering.
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2012 (English)Conference paper (Refereed)
Abstract [en]

This paper presents a remotely controlled educational experiments setup for Active Noise Control (ANC) and acoustic experiments. The experiments setup is based on the Virtual Instruments Systems in Reality (VISIR) open source platform, National Instruments LabVIEW software and a Digital Signal Processor TMS320C6713 from Texas Instruments. The software development and equipment are controlled remotely form a client PC using a standard web browser. The proposed laboratory setup focuses on ANC experiments applied to noise in a ventilation duct. The laboratory setup will enable students to test and investigate properties and behaviour of adaptive algorithms in reality as compared to more confined simulations usually carried out in Matlab etc. The general steps in ANC, such as the feasibility of active control, designing, testing and debugging ANC algorithms, configuration and implementation of an active control system, are all covered. In addition students will be able to study the effect of analog to digital converters (ADC), anti-aliasing filters, digital to analog converters (DAC) and reconstruction filters using digital signal processing in reality, etc. The laboratory setup is suitable for a wide range of courses such as sound related experiments in upper secondary school physics, digital signal processing, adaptive signal processing, and acoustics at university level.

Place, publisher, year, edition, pages
Bilbao: IEEE , 2012.
Keyword [en]
Active Noise Control, Remote Laboratories, VISIR
National Category
Fluid Mechanics and Acoustics Signal Processing
Identifiers
URN: urn:nbn:se:bth-6875DOI: 10.1109/REV.2012.6293158Local ID: oai:bth.se:forskinfoC14EEFD7626A1148C1257BE3003B2CD4ISBN: 978-1-4673-2541-7 (print)OAI: oai:DiVA.org:bth-6875DiVA: diva2:834429
Conference
Remote Engineering & Virtual Instrumentation (REV2012)
Available from: 2013-09-16 Created: 2013-09-11 Last updated: 2017-01-31Bibliographically approved
In thesis
1. Measurements, Analysis Techniques and Experiments in Sound and Vibration: Applied to Operational MRI Scanners and in Remote Laboratories.
Open this publication in new window or tab >>Measurements, Analysis Techniques and Experiments in Sound and Vibration: Applied to Operational MRI Scanners and in Remote Laboratories.
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

High quality noise and vibration measurements outside of a laboratory environment on real life structures and applications are not trivial. True boundary and operating conditions enforce unique challenges on the measurements. Measurements in hazardous situations such as high magnetic fields, and high temperature environments, etc., where ordinary measurement equipment and methods may not be employed, require further precautions. Post measurements objectives such as analysis, design and strategic decisions, e.g., control, rely heavily on the quality and integrity of the measurements (data).

The quality of the experimental data is highly correlated with the on-field expertise. Practical or hands-on experience with measurements can be imparted to prospective students, researchers and technicians in the form of laboratory experiments involving real equipment and practical applications. However, achieving expertise in the field of sound and vibration measurements in general and their active control in particular is a time consuming and expensive process. Consequently most institutions can only afford a single setup, resulting in the compromise of the quality of expertise.

In this thesis, the challenges in the field of sound and vibration measurements in high magnetic field are addressed. The analysis and measurement of vibration transferred from an operational magnetic resonance imaging (MRI) scanner to adjacent floors is taken as an example. Improvised experimental measurement methods and custom-made frequency analysis techniques are proposed in order to address the challenges and study the vibration transfer. The methods may be extended to other operational industrial machinery and hazardous environments. To encourage and develop expertise in the field of acoustic/vibration measurements and active noise control on practical test beds, remotely controlled laboratory setups are introduced. The developed laboratory setup, which is accessed and controlled via the Internet, is the first of its kind in the active noise control and acoustic measurements area. The laboratory setup can be shared and utilized 24/7 globally, thus reducing the associated costs and eliminating time restrictions.

Place, publisher, year, edition, pages
Blekinge Tekniska Högskola, 2017. 251 p.
Series
Blekinge Institute of Technology Doctoral Dissertation Series, ISSN 1653-2090 ; 3
Keyword
Active Noise Control, Remote Laboratories, Sound and Vibration Measurements, Vibration Analysis, Vibration Transmission
National Category
Signal Processing
Identifiers
urn:nbn:se:bth-13821 (URN)978-91-7295-336-9 (ISBN)
Public defence
2017-02-22, 10:00 (English)
Opponent
Supervisors
Available from: 2017-02-01 Created: 2017-01-24 Last updated: 2017-03-08Bibliographically approved

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khan, ImranGustavsson, IngvarZackrisson, JohanNilsson, KristianHåkansson, Lars
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