Investigative Science & Engineering, Inc. (ISE) is an industry leader in the field of acoustics, and dynamic vibration analyses. Having well over 3,500 diverse technical assessments and reports under our belt, you can imagine that there is very little we haven't seen.

Noise and vibration due to blasting and construction, structural acoustics and dynamics, aircraft noise, rail and subway noise, environmental effects, underwater acoustics, acoustic signatures from rockets - chances are we've looked at it.

 

  • Blast-Sequence
  • Construction Noise Contours
  • DCP00220
  • Dredge  before mufflers 02-28-17
  • IMG_0907
  • IMG_3184
  • IMG_3200
  • IMG_3304
  • IMG_4759
  • IMG_5518
  • IMG_5524
  • IMG_8667
  • IMG_8908
  • IMG_9348
  • IMG_9350
  • IMG_9749
  • ML 2
  • Monitoring Station
  • Noise-Contours
  • Peoples Ditch 04
  • River Run West Iso-Aerial
  • Testing Photo
  • railvib9

 

The acoustical and vibration engineering services provided by ISE are designed to provide assistance to groups and individuals requiring a timely solution to both large and small scale problems. Projects where frequency response and operational performance are critical, will find our services indispensable.

Our acoustics and vibration laboratory is traceable to standards set forth by the American National Standards Institute (ANSI), the American Society for Testing and Materials (ASTM), the International Organization for Standardization (ISO), and the National Institute of Standards and Technology (NIST). ISE maintains its own in-house GPS synchronized Rubidium-87 atomic time and frequency standard with an accuracy of greater than 1x10-10 seconds. 

What's New at ISE...

The current version of the ISE Industrial Source Model (IS3) is sure to make the competitors cringe. Version 3.9 touts some highly advanced features s...
We\'ve received several inquiries on how civil modal analysis is performed and what instruments are used. Shown in the photo is ISE\'s \'modal sledgeham...
Lighting & Photometric AssessmentsISE provides a complete range of lighting and photometric services geared towards commercial and industrial comp...
ISE is currently developing a robust method for the determination of structural defects within laminated composite aerospace structures. The current m...
Environmental Noise Control at ISEISE provides a full spectrum of acoustical consulting services necessary for compliance with environmental regulatio...
Kinetic & Kinematic Analyses at ISEAt the heart of any forensic problem involving the laws of physics are two fundamental quantities: the path of ...
Modal Analysis Services Available at ISEModal analysis is the experimental determination of the vibrational properties (i.e., normal modes) of a physi...
Laboratory Shake Table Testing at ISEISE houses a complete dynamic analysis laboratory consisting of an APS Dynamics long stroke shake table, capable...
Expert Witness & Litigation AssistanceAt the heart of any forensic problem involving the laws of physics are two fundamental quantities: the path ...
The ISE Rayleigh Wave (R-Wave) seismic vibration prediction model hit another milestone in 2011 in development by being able to accurately predict sur...
Geophysics & Blast Response Mitigation at ISEISE has been working for close to two decades on innovative and unique engineering solutions to the p...
Historic Preservation Services at ISEISE’s historical preservation services are a natural extension of our structural dynamics services which we hav...
Electromagnetic Pollution Control at ISEISE provides a complete suite of electromagnetic field (EMF) and Radio Frequency (RF) services designed to det...
We\'re not sure how well this works, but you have the give the City of San Francisco a \'A\' for effort.This sign is located at the bottom of Lombard Str...
Environmental GIS Solutions at ISEISE provides a comprehensive set of cost-effective Geographic Information System (GIS) mapping services built around...
Air Quality Conformity at ISEISE offers a comprehensive suite of air quality and air toxics analyses geared principally towards prediction and mitigat...
Structural Dynamics Analysis at ISEISE is a recognized expert in the field of structural and soil dynamics having developed several cutting-edge techn...
Computational Fluid Dynamics at ISEISE are experts in the field of computational fluid dynamics (CFD) and wave propagation analysis. We utilize, and h...
ISE has completed work on our laser optics test bench. The focal point is our newly built one-watt Class IV 655nm continuous wave (CW) laser capable o...
 Lots of people have heard of the Horton Grand Hotel in downtown San Diego, CA. Here\'s a view of the hotel that not too many people see - a view from...

Featured Video Clip (Shock Wave)

A video taken by ISE showing the supersonic expansion of high pressure natural gas in a pipeline. 

The shock wave is clearly visible at the 1:00 min mark as a white cloud above the end of the pipe and produces an acoustic overpressure of close to 140 dB - which is as loud as a rocket engine.