With plastic gears, often all teeth have to be measured due to the manufacturing process. Computed tomography allows the entire workpiece to be captured in a single measuring process, thus achieving an enormous time advantage. Using the CT data, gear […]

With high speed and precision, workpieces can be fully captured by means of X-ray computed tomography. For measurements in parallel with production, however, this method has often been too slow. A new type of machine now combines the advantages of […]

A connector usually contains several stamped and bent parts that must be manufactured with high precision. In order to prove and document the required quality (and ultimately to optimize the process), Unimet has invested in four Werth Videocheck  multisensor measuring […]

Figure 1: Laser sensor using the Foucault principle integrated into an image processing sensor (illumination systems not shown). Optical Sensor Technology in Coordinate Metrology In coordinate measuring technology, mainly tactile and optical sensors and X-ray computed tomography are used. Optical […]

Figure 1. Calculating volume data by back projection of the filtered radiographic images: a) Object, b) X-ray beam path in one section plane, c) Principle of stepwise back projection and superimposing, d) Result of reconstruction with different numbers of back […]

Measurement technology has always played a central role at the stamping and bending technology specialist Johann Vitz in Velbert. Managing Director Michael Vitz is convinced that the 3D multisensor coordinate measuring technology from Werth in particular secures a competitive edge […]

Figure 1. Measurement of a micro gear with the Werth Fiber Probe – the fiber is guided in a metal tube. Flexible and Surface Independent Sensors In coordinate metrology, mainly tactile and optical sensors, as well as X-ray computed tomography, […]

Fig. 1. One of Werth’s newest computed x-ray tomography machines the TomoScope XS Plus Measure as Accurately as a Probe or Optics Using Computed Tomography in Coordinate Metrology PRACTICAL TIP For precise measurements with X-ray computed tomography (CT), Autocorrection based […]

For years, toolmaker Mauth had to calculate more time for measuring complicated form cutters than for their grinding process. With the new 3D coordinate measuring machine Scope Check S from Werth Messtechnik, the relationship has changed. The production-related measurement system […]

Practical Tip-Why to Use Multisensor Technology-QZ 12.2017

Here is your guide to understand measurement uncertainty and tolerances. For Download Click Here    

The work piece changing system transports various work pieces in sequence from a pallet into the measurement area, then removes them again afterwards. With this automatic loading, the TomoScope® can also be used during “unmanned” night shifts or over the […]

Computed tomography (CT) reconstructs the entire work piece volume from 2D radiographic images. Inspection tasks such as void analysis or inspection of the situation in an assembly can be performed directly on the X-ray images without measurements. To support such […]

There are several calculation strategies available in WinWerth® for analyzing circles and cylinders. Among others, Gaussian, maximum inscribed, minimum circumscribed, and minimal zone elements can be calculated. Expanding on the maximum inscribed, minimum circumscribed, and minimal zone elements can be […]

Tables of measured values, 2D and 3D graphs, BestFit and ToleranceFit® plots, camera images from the image processing sensor or any other images can be documented in the office report. The measurement report can be created any time after the measurement […]

Various functions for editing measurement programs are integrated in the WinWerth® measurement software. After modifying the position, measurement window size, or light settings, the element can immediately be measured automatically. This way, the adaptions can be tested quickly without running […]

Complete measurement programs for all sensors may be created offline or online on the CAD model from single points, scan paths, and free-form scanning. Sensor parameters such as light settings, measurement strategies, and image processing filters can also be selected […]

For cylinder, cone, and sphere elements, automatic scan path and point distributions are available with the helix, circles, or surface lines strategies. On flat surfaces, scan paths are distributed in a particular shape (grid, star, or spiral), measured as an […]

Quality assurance uses various measuring machine concepts depending on the measurement task:  for production monitoring, extremely fast machines are needed and high-precision multisensor coordinate measuring machines are required for work pieces with tight tolerances. For first article inspection, however, computed tomography that captures […]

Today, using WinWerth® measurement software, measurement sequences can be created from 3D CAD data away from the machine.  Optimal measurement methods can be determined at the CAD workstation and measurement sequences can be simulated graphically. Programs are thus available prior to […]

One benefit of computed tomography is that the work piece is captured completely, including undercuts and internal geometries.  Historically, computed tomography has been too slow for  measurements during the manufacturing process. For years, real time reconstruction in WinWerth in parallel with image capture […]

Like all Werth CT machines, the TomoScope® XS also reconstructs the work piece volume in real time, in parallel with capturing the images, allowing the system to be used for production monitoring. The use of Win Werth® measurement software for […]

In recent years, developments in computed tomography have concentrated on the high resolution measurement of large work pieces and materials that are difficult to penetrate. To this end, large and heavy coordinate measuring machines were used. X-ray tubes came in […]

Werth Messtechnik presents the latest innovation in its extensive selection of sensors:  with the Chromatic Focus Line (CFL) sensor, entire work piece geometries are captured rapidly. Using different lenses, the measurement uncertainty and range can be adapted to a particular […]

The Chromatic Focus Line sensor provides another interesting function: in addition to the wavelength of the reflected light, its intensity is also analyzed and a raster image of the work piece surface is generated. Subsequent analysis with image processing software […]

A quick “in the image” measurement in the field of view of the image processing sensor has the same advantages for large work pieces as it does for small, however the measurement precision is not a high as it could […]

The new Measuring Spot Sensor simulates a tactile scan path or point distribution on a point cloud. The measurement points or scan paths, as is the case of tactile sensors, are automatically distributed on the selected geometrical features using the […]

The machine can optionally be equipped with two independent sensor axes. Both optical and tactile measurements as well as an optimal combination of both measurement principles are possible. During measurements with one sensor, the second axis remains in the park […]

The ScopeCheck FB DZ product line offers compact devices with large measuring ranges. A large combined measurement range can be achieved for Multisensor measurements, as for the smallest machine it is 425 mm x 500 mm x 350 mm with […]

With computed tomography, the complete work piece geometry is captured with one single measurement. To determine the measurement points in the entire voxel volume, at Werth the material transitions are calculated using a patented subvoxeling process. Using this process, it […]

WinWerth 8.42 now offers the functionality of a more comprehensive and clearer display of geometrical characteristics in the 3D graphic.  The display of the geometrical characteristics is now based on the ISO Norm 16792. The actual values are color coded. […]

Measurement technology is increasingly being integrated in production processes. Functions such as the OnTheFly operating mode, wherein measurements can be performed with the image processing sensor while the machine axes are moving, allow high throughput. In the CT field machines […]

The future points to increase integration. One example of this is the Werth Multisensor System, with conventional stylus systems, the fiber probe, and/or the contour probe, and accessories such as angle optics and ancillary lenses placed directly in the image […]

The depiction of volumetric data is now integrated the WinWerth® measuring software’s 3D module. Three different views can be used at the same time and can be unhidden or hidden. This provides the option to show the entire volume, i.e. […]

The field of X-ray tomography in particular is seeing rapid advancements. A series of software correction methods are now available, so that sufficiently precise CT measurements are usually possible without Autocorrection.  With Auto correction, the measurement process is even suitable […]

The first experiments for introducing computed tomography (CT) to coordinate metrology took place in the early 2000s. Unfortunately, the process was still much too imprecise, with measurement deviations in the range of tenths of millimeters. One early solution was the […]

Over the following years, the spectrum of optical distance sensors in particular was expanded. The laser distance sensors mentioned above were supplemented by chromatic focus sensors for measuring surface contours and flatness on reflective surfaces. That sensor determines the distance […]

Cooperation between medium-sized companies and universities and other research institutions is particularly well advanced in Germany.  Cooperative efforts between Werth Messtechnik and the Physikalisch Technische Bundesanstalt (PTB-the German National Institute of Metrology) in 1998 resulted in a tactile optical micro […]

As the diversity and complexity of work pieces increases, measurement tasks can often no longer be addressed with just one sensor.  Multisensor coordinate measuring machines are created by integrating various sensors in one measuring machine, each allowing individual adaptation to […]

Even after 20 years of image processing in coordinate metrology, revolutionary developments are still possible today.  For example, the Raster Scanning HD process presented in 2016 enables previously unknown measuring speeds while increasing accuracy.  To do so, images of the […]

PC technology in the early 1990s, with the first frame grabbers, was powerful enough to automate optical coordinate measuring machines. With a management buyout in 1993, now 25 years ago, business autonomy was reclaimed and Werth Messtechnik was the first […]

With FormCorrect, the exact work piece geometry is achieved by a mostly automatic correction of the CAD model.  The deviations between the original CAD model and the test work piece measurement data are directly determined by the WinWerth® measurement software […]

The patented Raster Scanning HD method can be used to capture an entire work piece automatically at high resolution. A new function also makes it possible to overlay this raster image with the 2D CAD model in DXF format within […]

Creating measurement programs with 2D-CAD-Online® or 2D-CAD-Offline® is as simple as can be. These two options allow easy CAD-based measurements of 2D contours using the most appropriate sensor. The controls are integrated in the 3D graphic of the WinWerth® software […]

When measuring work pieces with high radiographic length or high material density, such as cylinder heads or turbine blades, scattered radiation and cone beam artifacts often occur.  They make inspection tasks more difficult and increase measurement uncertainty when capturing geometric […]