Durham Instruments, the Canadian distributor of Brüel & Kjær’s industrial measurement devices, now offers a specialized lineup of acoustic sensors—including advanced head and torso simulators (HATS)—designed for high-fidelity sound and vibration analysis.
Symmetrical and Tapered Ear Canal Models
The selection includes six primary HATS models, featuring symmetrical pinnas and pinnas with tapered ear canals. The DZ-9769 and DZ-9770 series comply with ITU-T Rec. P.58, IEC 60318-7, and ANSI S3.36-1985 standards, making them ideal for testing headphones, hearing protectors, telephones, and hearing aids. Meanwhile, the DZ-9773 and DZ-9774 models feature tapered ear canals for easier earbud mounting, with a conical-cylindrical design ensuring a secure seal during testing.
Sound-Quality and High-Frequency Applications
The Type 4100/4100D sound-quality HATS are engineered for in-vehicle noise recording, sound optimization in consumer appliances, office equipment, and industrial machinery. Key applications include:
- Evaluating sub-supplier components for sound quality.
- Testing headphones and hearing protectors with blocked ear canals.
- Binaural sound and music recording.
- In-vehicle NVH (Noise, Vibration, and Harshness) measurements using Sonoscout Type 3663.
Electro-Acoustic Testing Solutions
For precise electro-acoustic assessments, the Type 4128-C HATS features built-in ear and mouth simulators, replicating the acoustic properties of an average human head and torso. It is widely used for testing telephone handsets, headsets, conference devices, and hearing aids. The Type 4128-D series adds handset positioners for accurate placement during measurements.
For full-frequency coverage, the Type 5128 HATS family incorporates realistic ear and mouth simulators, catering to high-precision acoustic research and development.
Brüel & Kjær’s HATS solutions provide engineers and researchers with reliable tools for noise measurement, product development, and compliance testing across multiple industries.
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