SD2165 Acoustical Measurements 8.0 credits

The course consists of theoretical and practical parts. In the theoretical part, students will learn basics of measurement techniques and the physics behind, principles of sensors, error analysis and the ways to reduce measurement errors, and the relevant International Standards. On the practical side, students will carry out around six experiments covering the following topics:

• Basic acoustic measurements, influence of environment
• Sound power measurements: sound pressure and sound intensity methods
• Air-borne and structure-borne sound transmission loss
• Basic vibration measurements, influence of the sensors
• Sound absorption and surface acoustic impedance
• Reverberation time and different ways to measure structural loss factor

The aim of the course is to teach students basic knowledge of sound and vibration measurements as well as analyses. Students will learn the ability to handle common acoustical measurements and to design new experiments in their future work.

After the course students shall be able to:

• Perform standard measurements in acoustics and in vibration, understand physics behind the measurements.
• Design new measurements according to requirement
• Criticize and find possible problems in measurements

Basic courses in mathematics, mechanics.

English B / English 6

If the course is discontinued, students may request to be examined during the following two academic years.

• LAB1 - Laboratory Work, 5.0 credits, grading scale: A, B, C, D, E, FX, F
• TEN1 - Examination, 3.0 credits, grading scale: A, B, C, D, E, FX, F

Based on recommendation from KTH’s coordinator for disabilities, the examiner will decide how to adapt an examination for students with documented disability.

The examiner may apply another examination format when re-examining individual students.

Lectures and home assignments – written tests (TEN1; 3 university credits)
Laboratory work – attend all lab exercises and submit reports (LAB1; 5 university credits)

Susann Boij

• All members of a group are responsible for the group's work.
• In any assessment, every student shall honestly disclose any help received and sources used.
• In an oral assessment, every student shall be able to present and answer questions about the entire assignment and solution.

Further information about the course can be found on the Course web at the link below. Information on the Course web will later be moved to this site.

SD2145 Vibro-Acoustics
SD2130 Signal Analysis
SD2150 Experimental Structure Dynamics
SD2155 Flow Acoustics
SD2160 Ljud- och Vibrationsprojekt
SD2170 Energy Methods
SD2175 Numerical Methods for Acoustics and Vibration
SD2180 Non-Linear Acoustics
SD2185 Ultrasonics
SD2190 Vehicle Acoustics and Vibration