ZTS-7020 / ZTS-7050

A high-speed, precision surface profiling inspection sensor for shop-floor installation.

Non-contact 3D Surface Profiling Sensor

A universal lab measurement system, the ZeroTouch® 7000 Series non-contact surface profiling sensor features up to four exchangeable objectives and automated objective recognition.

Fast, Precise 3D Surface Measurements

The ZeroTouch® 7000 Series sensor evaluates several thousand surface profiles using advanced white-light interferometry technology to capture high-speed, precision data acquisition and real-time 3D surface roughness measurements. Using high-resolution cameras, the sensor provides highly significant results without the limits of tactile measuring systems.

Sheet metal heat map

Surface Measurements

High-resolution cameras measure both smooth and rough specimen surfaces without contact, characterizing mechanically processed surfaces such as mirrors, semiconductor wafers, micro-lenses, glass, metal, plastic, composite, or other surfaces.


Precision Height Mapping

The sensor works with interference objectives from 2.5x to 50x, yielding fast, precise representation of the height information and the relevant surface parameters using a piezo objective adjuster and broadband wavelength spectrum lighting.


ISO Conform Roughness Measurements

Objectives starting from 10x and higher can be used for ISO confirm roughness measurements in accordance with ISO 25178 and ISO 4287.


  • Bearings
  • Cylinders, pipes, and bores
  • Gears and sprockets
  • Shafts and seals
  • Inline measurements
  • Actuators


  • Bearings
  • Brakes and clutches
  • Sensors
  • Engines
  • Gears and sprockets
  • Shafts and seals
Semiconductor Industry


  • Wafer inspection and metrology
  • Electro polished surfaces
  • Die attach
  • ​Inkjet nozzle plate
  • High purity valves
Medical Devices Industry

Medical Devices

  • Dental implants
  • Medical blades and sharps
  • Stents
  • Orthopedics

Precision Manufacturing

  • Precision machined parts
  • Power cutting tools
  • Lenses

Features & Benefits

  • Non-contact measurements of smooth, rough, and specular surfaces such as glass, metal, plastic, and composites
  • Precise measurement of height and relevant surface parameters
  • Installed in the immediate vicinity of the production line
  • Inspects mirrors, semiconductor wafers, microlenses, and solar cells
  • Micron-level, fast measurements of various surface profiles
  • 3D sensor with manually interchangeable objective
  • White-light interferometry-based, very high-resolution sensors (5 MP and 2.3 MP)
  • Piezo positioning system with interferometric calibrated closed-loop controller (up to 400µm scan range)
  • Optional XY positioning table with manual Z adjustment
  • Advanced algorithms improve speed and reduce system noise


High-Resolution Camera

5 MP (ZTS-7050) 2.3 MP (ZTS-7020)
Measuring Points 2,456 x 2,054 1,920 x 1,200
Scanning Speed, Full Resolution 77 Hz 169 Hz
Scanning Speed ROI Up to 2 kHz Up to 3.2 kHz
Topography Reproducibility <0.1 nm <0.15 nm
Scanning Speed 5.2 μm/s 11.4 μm/s
Objective / Magnification Working Distance / mm Measuring Field / mm² Point Spacing / µm Working Distance / mm Measuring Field / mm² Point Spacing / µm
5x 9.3 3.4 x 2.8 1.4 9.3 3.7 x 2.3 1.9
10x 7.4 1.7 x 1.4 0.69 7.4 1.8 x 1.2 0.96
20x 4.7 0.85 x 0.71 0.35 4.7 0.91 x 0.58 0.48
50x 3.4 0.34 x 0.28 0.14 3.4 0.37 x 0.23 0.19
100x 2 0.17 x 0.14 0.07 2 0.18 x 0.12 0.1
115x 0.7 0.15 x 0.12 0.6 0.7 0.16 x 0.1 0.08

System Performance

1-σ Reproducibility 0.4 μm Step Height <1 nm
1-σ Reproducibility 12 μm Step Height <3 nm
1-σ Reproducibility 100 μm Step Height <20 nm

Machine Size

Sensor Weight ~3 kg (6.6 lbs)
Coarse Positioning Range (max.)
(manual Z positioning)
70 mm
Fine Positioning Range
(manual Z positioning)
1.9 mm
Tilted Angle (leveling device) ±3°


Scan Range Up to 400 μm
Maximum Scanning Speed ~400 μm/s
Digitization Up to 0.01 pm

Positioning Table¹

Positioning Area 100 x 100 mm²
Load Capacity 2 kg
Resolution 0.01µm
Orthogonality <10arcsec
Vibration Isolation Options available

¹ Other positioning table sizes available on request.


Benefits of Consolidating Metrology Operations

Automated metrology platforms not only ensure high quality finished goods, these high speed solutions also lower total cost per part by consolidating multiple metrology operations into one system.

Improving Long-Term Performance of Metrology Systems

In challenging manufacturing environments, adjustability, calibration, and monitoring are key influences on the long-term performance of automated metrology systems installed in uncontrolled environments.

Speed Wins in Contact vs. Non-Contact Surface Profiling

In surface morphology inspection, non-contact optical methodologies provide the same measurement results as a conventional contact profiler—but in a fraction of time.

Contact Us

With manufacturing facilities located in the U.S. and China, DWFritz provides exceptional global support services.

DWFritz Global Locations