We are a full-service vibration and noise consultancy. Due to the demanding nature of our design work, we maintain world-class test and measurement capabilities. We not only design systems and structures; we test them and monitor their performance, as well. We currently have the expertise and instrumentation to perform acoustical and micro-vibration testing / analyses including:

• Sound power (PWL) and sound pressure (SPL) measurement and testing
  • PWL measurement for source specification or regulatory compliance
  • noise measurement for indoor and outdoor ambient criterion or regulatory compliance
  • outdoor noise measurement for noise ordinance (CNEL, Ldn, etc.) compliance
  • outdoor noise measurement for permitting (Title 24, CNEL, Ldn, etc.)
  • outdoor sound monitoring for construction noise impact
  • hydroacoustic (underwater sound) monitoring for in-water work
  • detailed noise and sound quality testing for industrial tools and consumer products

• Interior / architectural acoustical measurements
  • SPL testing of indoor noise levels in homes and industrial settings
  • Sound Transmission Class (STC and FSTC) testing
  • Impact Isolation Class (IIC and FIIC) testing
  • testing and analyses for permitting (condo conversion, new construction, etc.)
  • reverberation time (RT60) and room absorption testing
  • OSHA workplace noise testing

• Ground, floor, and product vibration measurements
  • ambient micro-vibration measurement and analysis
  • short-term and long-term vibration monitoring of rail, traffic, and construction impact
  • environmental and local source identification
  • walker-induced floor vibration
  • mechanical system vibration testing
  • blasting vibration
  • detailed vibration testing for industrial tools and consumer products

• Forced excitation (hammer testing) of foundations, structures, and tool pedestals
  • foundation stiffness determination
  • transfer function testing / vibration propagation in structures
  • structural dynamics and accelerance / mobility / acceptance FRF testing

• Multi-channel time history, narrowband FFT, and true fractional-octave signal analysis
  • full long-waveform "tape-recording" directly to disk
  • high-resolution narrowband FFT from DC to ultrasonic frequencies
  • true single and 1/3 octave band analyses; synthetic analyses at any bandwidth
  • post-hoc noise and vibration data analysis under variable analytical conditions

• Experimental modal analyses of tools and sensitive equipment

• Long and short term property line noise monitoring to determine compliance with ordinances

• Electromagnetic field (EMF / EMI) measurement and reporting

Please contact us with your questions about our equipment, software, measurement capabilities, and design techniques.