Scanning Vibrometer -

: Engineers use SLDVs to identify structural resonances, optimize noise, vibration, and harshness (NVH) levels, and detect defects like delamination in composite materials.

| If you need... | Choose... | |----------------|------------| | Full-field vibration shape | ✅ Scanning vibrometer | | Only a few points | ❌ Single-point LDV or accelerometer | | Rotating / hot / lightweight surface | ✅ Scanning vibrometer | | Water / thick paint environment | ❌ Contact sensor | | Low cost (<$10k) | ❌ (scanning vibrometers start ~$50k) | scanning vibrometer

: Advanced 3D-SLDV systems use three separate laser heads focused on the same point simultaneously. This allows for the measurement of vibration in all three orthogonal directions (X, Y, and Z), providing full-field 3D modal information. Key Applications : Engineers use SLDVs to identify structural resonances,

This is the superpower of laser vibrometry. Traditional accelerometers add mass to the object being tested. On lightweight structures (like a plastic fan blade or a thin foil), the weight of the sensor alters the vibration results. A scanning vibrometer uses only light—it has zero mass loading effect. Traditional accelerometers add mass to the object being

If you have ever tried to fix a rattling part in your car or pinpoint the source of an annoying buzz in an appliance, you know that vibrations are often invisible enemies. You can hear them, and you can sometimes feel them, but identifying exactly where the excessive movement is happening often feels like guessing in the dark.

: Scanning vibrometers incorporate two high-speed galvanometer mirrors (X and Y directions) and an integrated video camera. The software allows users to draw a measurement grid over the camera image, which the laser then "scans" point-by-point.