Mini Anechoic Chamber Spektra SQ-101

Compact anechoic chamber

• frequency range 125 Hz … 20 kHz
• Sound pressure range: 64 dB … 124 dB
• calibration of microphones according to DIN EN 61094-8
• calibration of sound level meters according to DIN EN 61672
• periodic tests of sound level meters according to DIN EN 61672-3 (incl. electrical tests)
• calibration of calibrators according to DIN EN 60942

Features

• Reference standards traceable to Physikalisch Technische Bundesanstalt (PTB) Braunschweig by the SPEKTRA Calibration Laboratory D-K-15183-01-00 (DAkkS-calibration certificate)
• True free-field calibration in acoustically dead (anechoic) chamber
• Calibration of any measuring microphone (condenser, electrets, electro-dynamic etc.) with any conctruction with / without protection grid
•  Supply of a defined free-field sound pressure level for the calibration of sound level meters
• Calibration of acoustic calibrators
• Can be combined with the following SPEKTRA calibration systems, e.g.:
  • CS18 SPL (calibration system pressure chamber)
  • CS18 SPL-E (calibration system pressure chamber for dosimeter)
  • CS18 SPL-VLF (calibration system sound pressure level very low frequency)

Application

• Secondary calibration of measuring microphones, sound level meters and other acoustic sensors according to IEC 61094-8 and IEC 61672
• Periodic single qualification according to IEC 61672-3
• Acoustical measurements like:
  • Measurement of directivity characteristic
  • Determination of diffuse-field sensitivity
  • Measurement of acoustic emission of small objects
• Calibration of constructively mechanically nonstandard microphones, e.g. external microphone units, optionally in axial and radial direction of measurement

Range of Use

Certified calibration laboratories

Measuring instrument verification in research and industry, for example civil engineering, aviation and automotive engineering

Quality assurance in manufacturing of microphones and sound level meters