Industrial CT-Xray Machine
Werth Coordinate Measuring Machine with X-Ray Tomography Sensor TomoScope® L Series
Werth Coordinate Measuring Machine with X-Ray Tomography Sensor TomoScope® L Series

 

Werth Coordinate Measuring Machine with X-Ray Tomography Sensor TomoScope® L Series

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Werth Coordinate Measuring Machine with X-Ray Tomography Sensor TomoScope® L Series

Werth Multisensor Coordinate Measuring Machine TomoScope L for 3D measurements with Computed Tomography (CT). Rigid granite base with precision linear guideways and integrated rotary axis. Presented by MSP Metrology (M) Sdn Bhd from Werth Germany.

Features

TomoScope L

Coordinate Measuring Machine with Tomography Sensor (Compact Design)
  • Multisensor coordinate measuring machine for 3D measurements with computed tomography (CT)
  • Rigid granite base with precision linear guideways and high accuracy air bearing rotary axis
  • Large distance between X-ray source and detector for precise measurement with small cone angles
  • Fully protective lead shielding design according to German Radiation Protection Act
  • Optical workpiece positioning aid for easy positioning of the measuring objects
  • Software to optimize the speed of 3D workpiece geometry reconstruction
  • WinWerth® – graphically interactive, user-friendly measuring software
  • Werth image processing system for generating and processing of X-ray images (patent pending)
  • Local subvoxeling for reduction of the probing error (patent)

Option:

 

  • Second Z-axis for operation in multisensory mode (patent pending)
  • Workpiece changing system
  • Raster tomography (patent pending):
    • Measurement of small features, even on large workpieces, with high resolution
    • Extending the measurement area
  • Multi-ROI tomography for high resolution measurement of small object details at any position in the measurement volume in the same reference system (patent)
  • Volume cross section image processing for evaluation of cross sections directly in the voxel volume (patent pending)
  • Spiral CT for reducing cone beam artifacts
  • OnTheFly tomography to significantly reduce the measurement time
  • Multi-spectra tomography to minimize artifacts when measuring multi material workpieces
  • Werth Tool Correction (patent) for direct correction of the injection mold
  • Werth Autocorrection (patent pending)

Ever since Werth presented the first X-ray tomography machine developed especially for coordinate measuring technology, with optional multisensor systems, the machines in the Werth TomoScope® series have enabled the complete, precise, and non-destructive measurement of workpieces. This technology minimizes first article inspection times for rapid product validation, thus reducing development costs. Special measurement methods also make it possible to monitor processes with high throughput due to short measurement times.

Special Features

 

  • CMM technology inside
  • CAA compensation
  • Temperature compensation
  • Pre-calibrated magnifications
  • Fully-automatic measurement
  • Local edge detection using subvoxeling algorithms (patent)
  • No manual influence on the measuring results
  • Integrated artifact correction
  • Accuracy around 2 µm − 20µm (depending on component material and geometry)

Principle

X-ray images of the workpiece are taken at various rotated positions. With suitable mathematical methods, they can be used to calculate a complete, high-resolution volumetric model. A patented subvoxeling process determines the measurement points at the material boundaries.

3D Comparison

The 3D point cloud can be compared directly with the 3D CAD model, imported for example in IGES or STEP format. Each point is automatically associated with the corresponding patch in the CAD model. WinWerth® measuring software generates a color-coded deviation plot for each measurement point in comparison with the specified CAD surface.

Dimensional Measurements

The points associated with a geometrical feature are selected for analysis, either using automatic segmentation or simply by clicking on the CAD model (patent). WinWerth® calculates the corresponding standard geometrical features (line, cylinder, plane, etc.) and links them into dimensions, generating a measurement report on request. Using virtual planes, measurements can be performed in any cross section of the volume or point cloud (patent pending). Workpieces made of several different materials can be measured using this technique. 

Machine Design

The design principle of the CT machines, based on proven components from Werth coordinate measuring machines, ensures stability and precision. All TomoScope® and TomoCheck® machines meet the requirements to be considered cabinet X-ray systems.

Precision in the Sub-Micron Range

The CT measurements can be traced back to the internationally recognized length standard of the German National Metrology Institute (PTB – Physikalisch-Technische Bundesanstalt), using calibrated standards in accordance with VDI 2617 or VDI 2630, with a DAkkS calibration certificate available on request. CT measurements, e.g., on plastics, can be performed with measurement errors of a few micrometers. If precision in the sub-micron range is required for workpieces that are difficult to penetrate radiographically, multisensor systems can help reduce systematic measurement errors due to artifacts, using patented Werth Autocorrection.

Special Measurement Methods

Special measurement methods, such as OnTheFly CT, Eccentric CT (patent), Multi-ROI CT, Raster Tomography, and Dual-Spectra CT are available to increase the measuring speed or resolution, to expand the measurement range, and to measure workpieces made of multiple materials.

X-Ray CT Speeds Up First Article Inspection

The measurement time for first article inspection of a workpiece has been reduced from several days, using classical measurement techniques, to a few minutes with CT. Product development can thereby be sped up significantly, which increases cost-effectiveness. With extensive and precise information about the workpiece, mold corrections can be implemented in a fraction of the time.

WinWerth® Software

The operation of machines with a wide variety of sensors, but also the evaluation of volume data and point clouds are possible with WinWerth® in a unique combination. The Werth image processing software is based on 40 years of experience and is the foundation of probably the most powerful image processing sensors for coordinate measuring machines currently available. Optical distance sensors, conventional styluses in single-point or scanning mode, the Werth Fiber Probe®, X-ray computed tomography or machines with a combination of several sensors are all supported by the uniform concept. Measurement points, 2D images or volume data can also be conveniently evaluated in terms of geometrical characteristics or with part-to-part deviation analysis. PTB-certified evaluation algorithms ensure correct measurement results. All desired information is displayed in the graphic: CAD models with PMI data, voxel volumes, measurement point clouds, colour-coded deviation plots from 3D nominal-actual comparisons, video images, measurement and calculation elements as well as flags with nominal and actual values, tolerances and deviations. In order to meet the most diverse requirements, the software has a modular structure. Various machines can be operated, from simple measuring projectors to complex multi-axis coordinate measuring machines with multi-sensor systems or even X-ray tomography sensors.

Image Processing Measures almost by Itself

The “intelligence” of the WinWerth® measurement software then takes over, for example, the exact determination of the object area to be captured, the selection of the geometrical element to be measured (e.g. e.g. straight line, circle, corner point) as well as the linking algorithms for determining geometrical characteristics such as distances, angles and diameters.

Measurement Points Distributed Automatically

Measurement points or scan lines are automatically distributed on the geometry elements to be measured, e.g. as circles, cylinder surface lines, stars or spirals, taking into account the necessary travel paths. In this way, the complete measurement sequence, including evaluation, is first created offline using the CAD model or online with the minimum number of points for the respective geometry element.

Evaluating Images Perfectly for Optics and Computer Tomography Scan

The evaluation is mainly realised by PC hardware and software. In a first processing step, the image can be improved with image filters (optimising contrast, smoothing surface disturbances). This enables reliable measurements even with difficult edges and rigid scanning in incident light.

Testing and Changing Made Easy

The feature tree in the WinWerth® user interface also controls the test and change mode, in which programmes can be run step-by-step and changes can be added. A text editor, available in parallel, allows experienced operators to directly enter or change DMIS programme code while teaching in programmes.

CAD-Online® and CAD-Offline®

Measurement programs can be generated both online and offline using 2D or 3D CAD models. The CAD models are imported in either STEP, native CAD or IGES format. In offline mode a sensor is selected and a patch or combination of several patches is selected on the CAD model. The software computes the necessary actions for the sensor and automatically generates the corresponding segment of the program. The graphic shows the simulated measurement sequence. In online mode the procedure is similar to the offline mode, but the coordinate measuring machine immediately performs each operational step so it can be observed “live.

Volume Section Sensor

With 2D contour image processing and the associated image processing filters, measurements can also be taken in any cross section of the CT volume or point cloud.

Eccentric Sections can be Scanned Tomographically with Multi-ROI CT

With the help of section tomography or ROI tomography (ROI: Region of Interest), parts of the measuring object are measured with high resolution without having to capture the entire measuring object, e.g. , completely with high resolution using Raster Tomography, which is time-consuming and requires a lot of memory. Multi-ROI tomography offers a combination of the benefits of eccentric and sectional tomography scans. Multiple parts with high resolution can also be selected at any position in the measuring object.

Automatic Burr Detection

A special feature of Werth is the automatic detection and measurement of burrs or chips during the measurement sequence. The result is a colour-coded deviation plot of the burr and the maximum burr length. The deviation display optionally shows only those points where the burr length exceeds the tolerance limits. The burr length along the entire burr can also be displayed numerically via analysis markers. For example, every 0.5 mm a flag is set that contains the maximum local burr length.

Graphic Displays and ReportsWinWerth® displays all the measured elements along with the selected geometrical characteristics in the 2D or 3D graphics window. The report generator summarizes the various outputs in “Office style.

 

All desired dimensions are collected during measurement, statistically analyzed in real time and evaluated using standard SPC functions.

Test Report

Test report output is supported for measured elements and selected geometrical characteristics.

Full Specifications

Model TomoScope L
General
Machine Type Multisensor coordinate measuring machine with CT device
Probing System Compact X-ray sensor, Optical Sensors, Image Processing, Mechanical Probing Systems: Trigger and Scanning Probes
Modes of Operation Linear path control
Measuring Software WinWerth®
Operating System MS Windows
Measuring Range
Max. part dimensions for tomography*** For “In the image“ measurements
from L = 175 mm, Ø = 175 mm
to  L = 379 mm, Ø = 340 mm		 Option raster tomography
from L = 493  mm, Ø = 299 mm
to  L = 678 mm, Ø = 470 mm
Max. part dimensions for other Sensors L = 600 mm (23.6″)
One-sided: Ø = 500 mm (19.7″)
Max. distance X-ray source – detector: FDD = 1250 mm (49.2″)
X-Ray Tomography Sensor
X-Ray Voltage 130 kV / 150 kV / 160 kV / 225 kV / 240 kV
X-Ray Power 10 W / 20 W / 25 W / 50 W / 80 W / 130 W / 240 W
Detector Flat panel detector
Machine Dimensions
Width Approx. 2100 mm
Depth Approx. 1400 mm
Height Approx. 2200 mm
Machine Weight Approx. 4500 kg
Operating Conditions
Operating Temperature 10 – 35 °C (50 – 95 °F)

** Other supply data on request or according to specific countrykit
*** Depending on calibration condition and aspect ratio of the workpieces

Maximum Permissible Error MPE (Extract)

Maximum Permissible Error MPE (Extract)
For advanced laboratory conditions
Optical and Tactile Sensor ¹ ~² ~ E : (2.5 + L/120) µm E : (2.9 + L/100) µm E: (4.5 + L/75) µm
CT Sensor ² ~ P: 4.5 µm E: (4.5 + L/75) µm SD: (3.5 + L/100) µm
No air-conditioning required
Optical and Tactile Sensor ¹ ~³ ~ E : (4.5 + L/120) µm E : (6 + L/75) µm E: (7.5 + L/50) µm
CT Sensor ³ ~ P: 7.5 µm E: (7.5 + L/50) µm  

(Where L = measuring length in mm comparable to ISO 10360 and VDI/VDE 2617)

 

1) Measured with TP200 or sensor with equal or better probing error

2) ∂ = 20 °C ± 2 K                  ∇∂ = 1 K/h                             m ≤ 2 kg (4.4 Ibs.)

3) ∂ = 16 °C to 30 °C              ∇∂ = 2 K/h, 2 K                    m ≤ 2 kg (4.4 Ibs.)

Variable X-Ray Sensors

Description Number of Pixels Pixel Size Max. part Dimensions for “in the image” Measurements (mm) Max. part Dimensions with Raster Tomography (mm)
X-DETECTOR PE1000 1000 x 1000 200 µm ∅ = 175 mm / L = 175 mm ∅ = 299 mm / L = 493 mm
X-DETECTOR PE2000 2000 x 2000 200 µm ∅ = 319 mm / L = 351 mm ∅ = 451 mm / L = 652 mm
X-DETECTOR PE2000/15 2000 x 2000 200 µm ∅ = 319 mm / L = 351 mm ∅ = 451 mm / L = 652 mm
X-DETECTOR VA1500/4 1496 x 1874 127 µm ∅ = 166 mm / L = 209 mm ∅ = 284 mm / L = 524 mm
X-DETECTOR VA2000/4H 2176 x 1792 139 µm ∅ = 253 mm / L = 218 mm ∅ = 391 mm / L = 532 mm
X-DETECTOR VA2000/4V 1792 x 2176 139 µm ∅ = 214 mm / L = 265 mm ∅ = 354 mm / L = 574 mm

Categories: OPTICAL INSTRUMENT, X-Ray Computed Tomography Machine

Tags: computed tomography machine, coordinate measuring machine, Inspection, malaysia, measurement, msp metrology, Singapore, TomoScope L, TomoScope series, werth germany, werth messtechnik

Contact us today to inquire about the Werth Coordinate Measuring Machine with X-Ray Tomography Sensor TomoScope® L Series.

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