Research and Development Acoustics | Precision Laboratory Measurement

Research and development acoustic measurement programmes demand the highest precision and the most flexibility from measurement equipment. Laboratory research encompasses psychoacoustic studies, material acoustic characterisation, product sound quality development, structural acoustic analysis, and fundamental acoustic research. These applications typically require the lowest possible self-noise floor, the widest frequency bandwidth, the most precise calibration documentation, and the ability to integrate measurement hardware into custom software environments.

PLACID Class 1 measurement microphones with low self-noise below 10 dB(A) are suitable for psychoacoustic listening tests, anechoic chamber measurements, and measurement of low-SPL acoustic sources. The open SDK for PLACID DAQ systems enables direct integration with MATLAB, Python, and C++ data acquisition scripts, which is often a prerequisite for research applications where standard analysis software does not support the specific measurement methodology required.

Key Instrument Requirements for Research

• IEC 61094-4 working standard compliance — Class 1 microphones for the lowest measurement uncertainty
• Low self-noise — below 10 dB(A) for measurement in anechoic chambers and very low SPL research
• Extended frequency range — to 40 kHz for studies involving high-frequency content
• ISO/IEC 17025 accredited calibration — for measurement programmes where uncertainty budgets must be formally documented
• TEDS identification — for automated multi-channel laboratory systems
• Open SDK — Python, MATLAB, C++, C# for custom data acquisition and analysis integration

Common Research Applications

• Psychoacoustics — binaural recording, listening test stimuli, hearing threshold measurement
• Material characterisation — sound absorption and impedance using impedance tubes, reverberation room testing
• Product sound quality — sound quality metrics, auralization, NVH development testing
• Structural acoustics — modal analysis, structural-acoustic coupling, vibration-acoustic transfer path analysis
• Calibration research — microphone stability studies, uncertainty method development
• Bioacoustics — animal vocalization and echolocation studies requiring extended frequency range

PLACID supports research institutions with uncertainty budget consultation, instrument performance data beyond the standard datasheet specifications, and flexible calibration scheduling to support laboratory quality management requirements. Contact our technical team to discuss your specific research application.

Research Publication and Uncertainty Reporting

For research published in peer-reviewed journals, measurement uncertainty must be formally evaluated and reported. ISO/IEC 17025 accredited calibration certificates provide the Type B uncertainty contribution from the microphone sensitivity determination. PLACID calibration certificates state the expanded uncertainty at each calibration frequency with the coverage factor k, in the format required for GUM-compliant uncertainty budgets. The PLACID long-term stability programme data provides the evidence for the stability contribution between calibration intervals.