Noise Measuring Technology

• Dissemination of the unit of sound pressure Pascal [Pa], especially in the acoustical free field
• Type examination of sound level meters and sound calibrators according to the German National Measurement and Calibration Act (“Mess- und Eichgesetz”)
• Testing and free-field calibration of measurement microphones with direct traceability to the national standard
• Development of methods to calibrate and measure in the field of airborne ultrasound
• Processing  questions to acoustics in small rooms, especially at low frequencies (modal sound field)
• Participation in national and international  standardization (IEC TC 29, NALS at DIN and VDI)
• Assessment of DAkkS-laboratories in the field of acoustics
• Scientific research on questions to sound and noise measurements

• PTB calibration service for airborne ultrasound

• Directivity pattern of airborne ultrasonic sources

• Assessment of airborne ultrasound noise

• Directional response pattern of measurement microphones for high-frequency noise measurements

• Secondary calibration for microphones and sound level meters in the infrasound frequency range

Archive

• Type examination of sound level meters

• Type examination of sound calibrators

• Free-field microphone calibrations

• Measurement Capabilities in the Field of Acoustics, Ultrasound and Vibration

• Scientific News from the Department

• The Room Acoustics Absorption Coefficient Database

• Round Robin in Room Acoustics