Measurement workflow comparison

Laser RADAR vs Scanning LDV for Non-Contact Vibration Measurement

Scanning LDV measures points sequentially. Laser RADAR captures many points simultaneously and can connect vibration data with range or 3D geometry. The right choice depends on coverage, working distance, bandwidth and the geometry evidence your decision requires.

Use scanning LDV for controlled grids where sequential acquisition fits the test plan. Evaluate parallel Laser RADAR when the structure is large or hard to access, simultaneous response matters, or geometry and vibration must stay in one workflow.

How the three approaches differ

Single-point LDV

One optical channel measures one location. It is useful for reference channels, focused checks, high-speed signals and synchronization.

Scanning LDV

One beam moves through a defined grid. It builds a surface map sequentially, so measurement time and setup sensitivity grow with the point count.

Parallel Laser RADAR

Many coherent FMCW channels measure at the same time. Q-Series systems combine stand-off vibrometry with range and geometry context.

Choose the platform by the measurement bottleneck

Q1 for remote field campaigns

Q1 provides 128 parallel beams for portable stand-off vibrometry and metrology. It fits bridges, large assets and field tests where access and setup time constrain the campaign.

Q2 for denser dynamic analysis

Q2 provides 65 simultaneous points with single-head 3D geometry context. It fits modal testing, automotive NVH and complex parts where spatial detail and geometry must remain connected.

A hybrid route for point references and geometry-aware coverage

Some programs need dense spatial coverage plus a dependable high-speed reference. Q2 supplies simultaneous multi-point response and geometry, while a SpeedSync single-beam head can add a focused synchronization or reference channel.

Questions engineers ask before choosing

Is Laser RADAR always better than scanning LDV?

No. Scanning LDV can be effective on controlled targets with a manageable grid. Laser RADAR becomes more compelling when simultaneous coverage, stand-off access or geometry context drives the plan.

Can both systems measure without contact?

Yes. Both are optical non-contact methods. Their main workflow difference is sequential scanning versus simultaneous multi-point acquisition and the availability of integrated geometry data.

Should I start with Q1 or Q2?

Start with Q1 for larger field assets and remote campaigns. Start with Q2 for denser modal or NVH analysis and complex geometry. Confirm the choice against range, point count, bandwidth and target return.

What should I bring to a feasibility review?

Bring the target material and geometry, working distance, expected motion or bandwidth, point count, environment, required outputs, reference method and acceptance criteria.