Werth's Image Processing Optical Measurement

The newly redesigned ScopeCheck Multi-Sensor Coordinate Measuring Machines offers full image processing with variable working distance.  This combination of optics, software, and lighting control provides consistent, automatic measurement over a run of parts with reflective variability.

The new design with the granite base mounted on a stand alone steel foundation increases the stability of the machine and allows for increased operating speeds.  Additional sensors such as touch and scanning probes, laser probes, and the tiny Werth Fiber Probe can be added for increased flexibility.  All sensors are calibrated to each other, fully integrated within the WinWerth software, and can be used interchangeably within the same measuring programs.


For more information contact:


Werth, Inc.

8 Custom Dr. s Old Saybrook, CT s 06475 USA

Tel: (860) 399-2445 s Fax: (860) 399-6784

info@werthinc.com

OnTheFly – Measurement in Flight

Werth, a manfacturer of optical and multi-sensor coordinate measuring machines, presents the patented “OnTheFly” method for rapid measurement with image processing. Werth ScopeCheck^® and VideoCheck^® coordinate measuring machines can now take measurements while in constant motion.  By flashing the light sources, blurriness due to the motion is eliminated. Start-Stop operation is no longer needed. Measurement time is drastically reduced (up to a factor of 10) and the efficiency of the measuring machine is increased.  This technology is ideal for printed circuit boards or other workpieces with numerous features and the need for short inspection cycles.

Tomography in a multisensor coordinate measuring machine

The future of metrology –

Tomography in a multisensor coordinate measuring machine

For the very first time, Werth Messtechnik has integrated x-ray computer tomography into a multisensor coordinate measuring machine.

The Werth TomoScope^® measuring machine uses x-ray tomography to perform rapid, non-destructive geometrical measurements of interiors and exteriors of complex components. The measured point clouds can be calibrated with extremely high precision by using the additional integrated tactile or optical sensors. First article inspection is performed in a few minutes. Therefore, the ROI will be realized in a very short period. The traceability of measurement results is provided by a calibration according to coordinate measuring machine standards (ref. ISO 10360), which is unique for this kind of instruments. The gathered data can be easily exported to STL files for direct machine tool communication or directly imported to the WinWerth 3D CAD module for a graphical nominal-actual comparison in a deviation color plot display or measurement of constructed geometrical elements.

The First Scanner That “Actually” Measures

Werth Messtechnik GmbH presents its new scanner, the Werth FlatScope, for fast, precise, and reliable inspection of flat work pieces and extrusion profiles in a production environment. The main area of application is in the measurement of complex profiles (e.g. rubber, plastic, or aluminium profiles) as well as stamped parts, laser cut profiles, and circuit boards.

The exceptional features of the scanner, currently the most exact in the world, are based upon proven designs in its mechanical construction. This enables workpieces to be measured with the smallest uncertainty. The measuring range of this reasonably priced series of machines is up to 650 mm. Larger measuring ranges can be supplied upon request.

The Werth FlatScope is equipped with an Image Processing Sensor with telecentric or zoom optics as required. By using the unique Werth Zoom, constructed with linear guideways, an accuracy can be achieved which is unprecedented within the scope of the scanner. The magnification can be set via CNC controls. Powerful image processing, which goes far beyond the capabilities of common edge detector systems, makes the previous, time-consuming preparation of test pieces superfluous. The versatility of numerous available filters eliminates the need for extensive deburring. Even parts with profiles of 100 mm thickness can be measured with ease.

Completely automatic measurement of complicated, extremely low-contrast work pieces in Backlight and Surface Illumination can also be easily achieved. In Grid Scanning mode, the entire measuring area can be scanned quickly and all geometrical characteristics recorded and evaluated.

The WinWerth Measuring Software combines modern, intuitive user operation with exceptional features, making measuring with the Werth FlatScope particularly simple, thus enabling the machine to be used by untrained operators.

High-Precision Measurement

The new Werth VideoCheck EA provides compact, high-precision multi-sensor coordinate measuring machine using air bearing technology.

Image processing is the primary sensor. Additional sensor options include; Laser, Scanning, Touch Probes, and the unique Werth Fiber Probe, as small as 20µm diameter. Probe magazines, articulated heads, and rotary/tilt axes increase its flexibility.

Applications include measurement of; injection nozzles, turbine blade cooling holes, stents, tooling, automotive, electrical, plastics parts and more.

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Measurement of Fuel Injectors

The preferred tool around the world today for measuring fuel injectors used in modern diesel, gasoline, and aircraft engines is the patented Werth Fiber Probe. This tactile-optical sensor can have a contact sphere with a diameter between 20 μm and 300 μm. The Werth Fiber Probe makes it possible to measure, in 3D spatial orientation, the cylindricity and diameter of the tiny injection ports, as small as 80μm.

Fiber Probe Scanning has recently been implemented. The extremely high measurement point density provides another increase in precision and reliability. The WinWerth® “Injector” application has also been expanded to include the measurement of the K-factor of reverse tapered holes.

Together with a high-precision multi-sensor coordinate measuring machine from the Werth VideoCheck® EA series, measurement deviations of less than 0.5 μm are achieved

Contact;

Werth, Inc.

8 Custom Dr.  Old Saybrook, CT  06475 USA

Tel: (860) 399-2445  Fax: (860) 399-6784

info@werthinc.com

OnTheFly – Measurement in Flight

Werth, a manfacturer of optical and multi-sensor coordinate measuring machines, presents the patented “OnTheFly” method for rapid measurement with image processing. Werth ScopeCheck^® and VideoCheck^® coordinate measuring machines can now take measurements while in constant motion.  By flashing the light sources, blurriness due to the motion is eliminated. Start-Stop operation is no longer needed. Measurement time is drastically reduced (up to a factor of 10) and the efficiency of the measuring machine is increased.  This technology is ideal for printed circuit boards or other workpieces with numerous features and the need for short inspection cycles.

Werth Messtechnik's Measurement Machines Brought to Market by Mantech Sales

Mantech Sales Ltd has won the contract to distribute Werth Messtechnik GmbH’s dimensional measurement machines in the UK. The award will mean that UK manufacturers and engineers will have access to some of the world’s most accurate measuring machines, including the Werth Tomoscope, a CT scanner which incorporates many patented features.

German company, Werth Messtechnik GmbH, has over 50 years’ expertise of high quality and precision in measurement technology. The broad range of products on offer allow for non-destructive, internal and external imaging of materials and components, including metals, plastics, rubber, circuit boards and semiconductors.

The news has been met with excitement by the manufacturing industry, with four orders having been placed already by the medical and aerospace industries, at a value of 1.4 million Euros.

This includes the sale of a Werth Tomoscope, the world’s first integration of computer tomography (CT) in a multisensory coordinate measuring machine. This machine opens up completely new measurement possibilities for analysing features of materials. Quick CT measurement is combined with precision measurement of functional dimensions, taken using tactile or optical sensor technology.

The machine works by placing a workpiece on a revolving stage and rotating it through 360°, while x-ray images are taken at several orientations. It then uses these measurements to construct a 3D image of the sample under inspection. Tactile sensors with probe tip diameters down to 20 microns probe optically inaccessible features. This makes it one of the most accurate measurement systems on the market, meaning less chance of scrapping good parts or keeping bad parts.

Paul Nash, Director of Mantech Sales, said: “The Werth Tomoscope provides a very quick, 3D colour image of every feature of the component, without any need for further checking or measurement. Other methods can be time-consuming or require destruction or pre-treatment of the product, but the Tomoscope allows users to quickly obtain all the information they need, and respond to their customers more quickly.”

Other Werth products now available in the UK include the Scopecheck series for use in a shop-floor environment, and the Videocheck series for gauge master certification, research and development, and first article verification. The full product range extends from classic profile and measurement projectors to highly-advanced multi sensor coordinate measurement equipment featuring optics, laser and tactile scanning probes.

Paul Nash added, “We are delighted to have been awarded this contract and to be able to offer such high quality equipment to UK manufacturers. The products will have a broad range of applications, and are already making an impact on major UK businesses in the automotive and medical fields. We look forward to offering the machines to these and other manufacturing industries to help them improve the quality, safety and efficiency of their products.”

DMIS CERTIFICATION PROGRAM

Need for Certification

The Dimensional Metrology Standards Consortium (DMSC, Inc.) has officially announced the DMIS Certification Program for testing conformance of DMIS-based products against the DMIS Standard. This certification process has been years in the making with the help and expertise of the National Institute of Standards and Technology (NIST), the DMIS Standards Committee (DSC), the Automotive Industry Action Group’s Metrology Interoperability Project Team (MIPT), and the DMSC membership. This collective group has developed a DMIS Conformance Test Suite, defined DMIS Conformance Classes, and established a DMIS Certification Program to validate the correctness and completeness of vendor DMIS-based products.

Dimensional measurement part programs and results are critical to manufacturing Quality Assurance. DMIS (Dimensional Measuring Interface Standard) is both an American National Standard and ISO international standard language for the correct, complete, and unambiguous description of computer-executable dimensional measurement part programs and measurement results. Because it is an accredited standard, DMIS is non-proprietary and represents industry consensus. Since DMIS is a very large standard, it has been divided up into several conformance classes, in order to accommodate the fact that many users only need to implement subsets of the standard.

DMIS is a successful, dynamic standard because it’s scope and capabilities have expanded over the years along with technology advances in the metrology industry. However, this success has brought about challenges in the area of conformance of DMIS implementations. Not surprisingly, many who claim DMIS conformance are conforming to some variation or modification of the actual DMIS Standard. This situation nullifies and inhibits one of the most fundamental benefits of the DMIS Standard, which is interoperability. Many large companies use the DMIS Standard to share inspection programs between subsidiaries around the world, among suppliers, and even among departments. The basic requirement to accomplish this interoperability is “stick to the standard.”

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High Speed CMM

The Werth Inspector FQ is an extremely fast measuring machine with linear drives. Positioning speed is up to 1,000 meters / second with acceleration speed of 10 meters / second2. It comes standard with zoom optics and can be outfitted with additional sensors such as touch probes and laser scanning. For even faster utilization it can be used in the “Measure OnTheFly” mode, capturing measurement data while the machine remains in constant high speed motion.



Werth Inc. Contact Info
Werth, Inc
8 Custom Dr.
Old Saybrook, CT 06475
860-399-2445
info@werthinc.com

Making a Point: Picoscale Stability in a Room-Temperature AFM

Forget dancing angels, a research team from the National Institute of Standards and Technology (NIST) and the University of Colorado (CU) has shown how to detect and monitor the tiny amount of light reflected directly off the needle point of an atomic force microscope probe, and in so doing has demonstrated a 100-fold improvement in the stability of the instrument’s measurements under ambient conditions. Their recently reported work* potentially affects a broad range of research from nanomanufacturing to biology, where sensitive, atomic-scale measurements must be made at room temperature in liquids.

Atomic force microscopes (AFMs) are one of the workhorse tools of nanotechnology. AFMs have a sharp, pointed probe fixed to one end of a diving-board-like cantilever. As the probe is scanned across a sample, atomic-scale forces tug at the probe tip, deflecting the cantilever. By reflecting a laser beam from the top of the cantilever, researchers can sense changes in the force and build up a nanoscale topographic image of the sample. The instruments are terrifically versatile—in various configurations they can image electrostatic forces, chemical bonds, magnetic forces and other atomic-scale interactions.

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CMM Quarterly Press Release

Werth Inc. Fiber Probe

It Goes Where No Probe Has Gone Before

The Werth Fiber Probe can be as small as 20µm in diameter to measure inside of small features such as tiny holes and slots.

Previously, features under around 300µm were either measured optically at the surface of the part or measured by inserting very small feeler gage pins. The first method provided no information about the characteristic inside the cylinder or slot. The second method generally provided whatever information that the operator wanted to report. The self illuminated sphere of the Fiber Probe is positioned via CNC positioning into the hole and slightly deflected on the workpiece. The sphere is mounted exactly in the focal plane of the optics and its deflected position is measured optically. Thus, extremely accurate and repeatable measurements inside tiny features can now be made non-destructively on a production basis. Calculations of cylindricity, taper, perpendicularity, and vector angles of holes are now possible with the Werth Fiber Probe.

http://www.cmmquarterly.com/site/index.php?option=com_content&task=view&id=148&Itemid=63