Topography measurement

The third dimension in the roughness metrology. For graphic representation and evaluation of certain surface characteristics and calculation of 3D parameters.


Can be used as an optional supplement for all HOMMEL TESTER T8000 measuring stations. The following accessory components are available for this:

Topography measurement system  WAVESPEED 1010:
autarchic topography measurement system with laser triangulation sensor and optional additional chromatic white light sensor.

Y-positioner
as traverse unit for recording 3D measurement data

Topography software HOMMEL MAP
for displaying and evaluating the 3D measurement data

Chromatic white light sensor
for non-contact surface measurement

 

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System for measuring 3D topographies Wavespeed 1010 / 1010 TOP

The WAVESPEED 1010 is a versatile system for measuring 3D topographies. Optical sensors guarantee a fast measuring rate at high measured value resolution. The HOMMEL MAP EXPERT software enables measurement control in real time and offers extensive analysis possibilities of the recorded topography data. Triangulation lasers or a chromatic white light sensor act as a measurement principle.

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Topography software HOMMEL MAP
HOMMEL MAP, the software option for the HOMMEL TESTER T8000, enables the three-dimensional display and analysis of your topographical measurement data. You have the choice between two versions:


HOMMEL MAP BASIC

  • extensive presentation possibilities:
    image in pseudo colours, photosimulation or contour diagram
    3D display in colour curve or grid representation
    with rotation and tilting in the room
  • alignment function, partial or over the whole
    area
    zoom, rotate, mirror invert
  • distance measurements with freely selectable
    co-ordinate points in X, Y and Z direction
  • step height calculation
  • calculation of 2D and 3D parameters
  • filtering of waviness and roughness
  • free design of printing forms

 

Additional scientific functions in the HOMMEL MAP EXPERT

  • morphological filters

  • Fourier analysis

  • autocorrelation, intercorrelation

  • frequency spectrum, medium spectral density

  • interactive Abbott curve

  • fractal analysis

  • texture direction and texture isotropy

  • joining of surfaces

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Y-positionierer
Positioning table with roller bearing step motor for recording topographies or for positioning transversely to the scanning direction.
  • Travel 50 mm

  • Smallest step width 2.5 µm or 0.5 µm

  • Contact surface 160 x 160 mm

  • Optionally with manual fine adjustment

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Chromatic white light sensor - Measuring with light

The sensor uses the chromatic longitudinal aberration of a special lens. Owing to the independence of the measurement principle from the surface properties of the measuring samples such as reflectivity, colour and texture, a wide variety of different materials can be measured.

The coaxial measurement principle is insensitive to shadowing so that structures with large aspect ratios can also be measured. The compact measuring head operates without moving parts. The sensor is particularly suitable for topography measurement due to the highly effective measuring rate. The measuring range is determined by selection of the appropriate sensor head.

Model Measuring range Measuring
distance
Resolution
Z axis

Measuring spot
diameter

Lateral
resolution

Measuring angle
to the surface
CHR-Sensor-300 300 µm 4,5 mm 10 nm 5 µm 2,5 µm 90°+/- 30°
CHR-Sensor-600 600 µm 6,5 mm 20 nm 5 µm 2,0 µm 90° +/- 30°

 

 

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