Noise, Vibration and Harshness (NVH) is the study and modification of noise and vibration characteristics particularly in cars and trucks. OptoMET Laser Doppler Vibrometry is used in many NVH testing applications within the Automotive Industry. Original Equipment Manufacturers (OEMs) utilize scanning laser vibrometry for measurements on full scale body-in-white vehicles to validate and update Finite Element Models (FEMs). Subsystem and component level testing also enjoys the benefits of LDV. For example, OEMS and suppliers of braking systems routinely use LDVs to address brake squeal issues, verify supplier components meet Frequency Response Function (FRF) design specs and perform production line testing. Even sub-suppliers of automotive electrical components utilize LDV to solve failures on printed circuit boards or other products that arise out of Highly Accelerated Life Cycle (HALT) or Durability Testing. Automotive Suppliers perform a great deal of LDV testing to characterize shim (damping) materials to offer the most effective solution with a particular program’s budget and weight constraints. As Noise, Vibration & Harshness (NVH) targets a passed down to suppliers for OEMs, suppliers are now required to conduct production testing to meet vibration specs. OptoMET Laser Vibrometers are ideal for production QC applications where NVH is now a part of acceptance specifications.