Pro.Surf+
large area topography
with roughness measurement

Multi-sensor profiler for fast and large-area topography scanning and combined form & roughness characterization at nm level.

Measure form and roughness in one production-ready workflow

Pro.Surf+ is a multi-sensor optical profiler that combines large-area areal topography with nm-resolved roughness measurement in a single system. It enables fast, non-contact inspection of form parameters such as flatness, step height, and parallelism across wide fields of view.

By integrating telecentric white-light interferometry with a chromatic-confocal roughness sensor, Pro.Surf+ eliminates the need for separate measurement stations. This reduces handling effort, shortens cycle times, and delivers traceable results — ideal for quality control and output-driven manufacturing.

44 x 33
mm
outstanding single-shot FoV (Field of View)
70
mm
flexible, large Z range
< 1.45
nm
vertical resolution
Highlights

Multi-sensor surface profiler for fast form and combined roughness measurement

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Applications

Form and roughness measurement examples

Below or some real-life results from standard tasks across common engineering materials. Those examples are gathered by our application centers which does feasibility studies and offers contractual measurement services.

Optical profilometer measurement: Sealing surface of piston
Full surface topography of piston in a single shot with large FoV
Roughness of leather of car interior
Optical Profilometer measurement: Flatness parallelism
Reliable form and flatness evaluation
Pro.Surf Form and roughness measurement
Combined form and roughness measurement with traceable results
Examine cone shaped surfaces or large steps with telecentric optics and large Z range

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Features

Embedded features support high precision and efficient workflows - even in rough environment

The key feature of the ProSurf+ is the added chromatic-confocal sensor with 400 µm vertical range, ~2.6 µm lateral resolution, 10.8 mm working distance, usable down to typical Ra ≥ 100 nm (application-dependent). Roughness is acquired within the same recipe as form.

As on Pro.Surf, you also get a wide FoV up to 44.9 × 33.8 mm (extendable to ~228 × 221 mm via stitching), automation-ready operation with motorized stages, recipe control and barcode start, plus telecentric WLI/CSI and a 70 mm Z-range for nanometer-level vertical performance.

Integrated roughness sensor

→ Measure large-area form and roughness with one system

Chromatic-confocal sensor (400 µm range, ~2.6 µm lateral resolution, 10.8 mm working distance) adds roughness in the same station; typical roughness measurement Ra ≥ 100 nm.

  • Combine form + roughness in one pass
  • Long working distance for safe sample handling
True Stitching - Higher accuracy for wider samples

→ True Stitching provides unmatched precision when scanning wide-area samples

Because larger surfaces exceed the single-shot field of view — stitching merges tiles into one accurate dataset. The metrology quality of such large-area measurements depends on the optics and sensing technology, the number of tiles and the stitching algorithms. 

True Stitching delivers high-fidelity large-area measurements by minimizing stitching artifacts and preserving geometry.

An independent benchmarking at a leading German technical university compared six optical profilers from different manufacturers and the Polytec profilometer demonstrated the highest stitching and measurement quality. This is achieved through several key features:

  • Large single-shot FoV → fewer tiles and seams, less cumulative error
  • Sophisticated stitching algorithms → controlled overlap, robust registration, and metrology-safe blending that preserves steps and edges
  • For Pro.Surf: Telecentric/CSI optics with correlogram evaluation → stable geometry and height fidelity across tiles

The result is high-fidelity, large-area topography with fewer artifacts and audit-ready residuals—what we call True Stitching.

WLI with telecentric optical design

→ Keeps geometry accurate across height and dept

Traceably calibrated WLI/CSI delivers non-contact, areal 3D data with nanometer vertical resolution. The telecentric optical approach keeps the beams / rays parallel to the optical axis, preserving constant magnification and uniform illumination over height—even enabling measurements in holes.

  • Non-contact, repeatable, fast areal scans
  • Phase/envelope evaluation for smooth and rough surfaces
  • Smart surface/adaptive scanning for varying reflectivities
  • Long-life 525 nm LED
Large field-of-view (FoV) optics

→ Reduces stitching and cycle time

Pro.Surf offers a wide single-shot field of view up to 44.9 × 33.8 mm (with ~1.91 million points), so broader samples or multiple parts can be measured in a single acquisition. With the built-in stitching function, coverage extends up to ~228 × 221 mm.

  • Measure multiple samples at once; automatic sample recognition available
  • Short cycle times; reduced stitching effort
ECT – environmental compensation technology

→ Stabilizes results in real shopfloor environments

Noise, vibration, and temperature fluctuations can affect measurements. ECT compensates for such disturbances and ensures consistent data — even on the shop floor.

  • Improves reliability in noisy or unstable environments
  • Enables automation and inline QC without full isolation
  • Especially helpful for sensitive components (e.g., MEMS, thin films)
Ready for automated metrology workflows

→ Enables unattended, repeatable measurements

The modular design and motorization options makes it easy to automate and integrate the Pro.Surf profilometer into existing process and machines. A bundle of features and capabilities enables highly efficient and unattended metrology workflows:

  • Pattern matching and Smart Scanning Technologies
  • Motorized X, Y, Z, tip/tilt stages
  • Large FoV and automated stitching for high-resolution scans over large areas
  • Recipe system in TMS (Software) for operator-independent workflows
  • Rugged design without moving parts and ECT (environmental compensation technology)
Pattern matching 

Machine-vision routine that finds and registers parts against a template so recipes hit the right locations (even if parts are shifted or rotated). Ideal for trays and multi-sample runs; pairs well with automatic sample recognition to reduce fixturing. 

Smart Scanning Technology

Acquisition mode that adapts to varying reflectivity/contrast so you can measure “almost any surface” reliably in one setup; included in the TopMap software.

Technical Data

Modular setup, specification and options

 Small FoVLarge FoV
Roughness measuring range

400 µm

Roughness lateral resolution

2.6 µm

Typical roughness measurement

>= 100 nm

Positioning volume

200 x 200 x 70 mm³ = 0.028 m

Max. number of points  
in single measurement

X: 1,592, Y: 1,200  
X·Y: 1,910,400

Vertical range

70 mm

Measuring areaX: 22.8 mm Y: 17.2 mm  
X·Y: 392.2 mm²
X: 44.9 mm Y: 33.8 mm
X·Y: 1,517.6 mm²
Measurement point spacingX: 14.3 µm Y: 14.3 µmX: 28.2 µm Y: 28.2 µm
Calc. lateral optical resolution8.4 µm16 µm
Measurement noise

< 0.5 nm (phase evaluation, smooth surfaces)

Vertical resolution

< 1.45 nm (phase evaluation, smooth surfaces)

Please take a look at the datasheet for specifics and more details (see "Download" section below)

Feasibility check?

Send us your sample and we run a feasibility study with our profiler and walk with your through the results. 

This gives you a precise understanding of the optical profiler’s performance on your actual samples.

Discuss your demands with our experts

Let’s start with a short discussion about your parts, tolerances, and workflow — and, if useful, we can add a feasibility study, PolyMeasure (contract measurements), or a PolyRent trial as optional next steps.

Schedule your surface profiler demonstration