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measureup PORTABLE CMM NEWSLETTER HEXAGON METROLOGY 02/2006 September 2006 Edition www.portable-cmm.com Custom-Tailored Tubes Pages 4 5 The Need for Speed Pages 10 11 Focus on Technology Pages 13 14

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Page 1: measureup - w3.leica-geosystems.com · USINAGEM October 24-26, 2006 Brasil, Sao Paolo EUROBLECH October 24-28, 2006 Germany, Hannover DAMEX November 1-4, 2006 ... plans to purchase

measureupp o r t a b l e C M M N e w s l e t t e r H e x a g o N M e t r o l o g y 0 2 / 2 0 0 6

september 2006 edition www.portable-cmm.com

Custom-tailored tubes pages 4 − 5the Need for speed pages 10 − 11Focus on technology pages 13 − 14

Page 2: measureup - w3.leica-geosystems.com · USINAGEM October 24-26, 2006 Brasil, Sao Paolo EUROBLECH October 24-28, 2006 Germany, Hannover DAMEX November 1-4, 2006 ... plans to purchase

Custom-tailored tubespages 4 − 5Featured product: romer Flex armpages 6 − 7Hexagon Metrology Profilepage 8Q&a with Cesare Cassani, Hexagon Metrology Italypage 9the Need for speedpages 10 − 11Featured product: leica t-scanpage 12Focus on technologypages 13 − 14precision Centers in europepage 14

Dear reader,

we are happy to report that the initial response to the premiere issue of measureup was overwhelm-ingly positive. Many of you have filled out the response card in the back, and the first 50 have received our trademark “Portable CMM” wireless optical mouse as a small token of our gratitude. We started distribut-ing measureup at the CONTROL trade show in Sinsheim, Germany, thus commemorating the first joint exhibition of all Hexagon Metrology brands under one roof. The new Portable CMM organization within Hexagon Metrology will focus solely on the products from Romer and Leica Geosystems, providing our customers with a complete selec-tion of articulated arms, theodolites, laser trackers, hand-held contact-less scanners and wireless “Walk-Around” probes. In this issue we are showcasing another two of our customers, Dick Keyt in the USA and TUBAZUR in France. Are you a Hexagon Metrology customer and would like your company to be the next one featured in a measureup article? Contact us at the address provided in the back. On that note, enjoy your reading and don’t hesi-tate to voice your feedback. Let’s make measureup a true readers’ magazine.

Sincerely, Your measureup Editorial Team

exhibitions august - December 2006 Index

for deep-point inspection, relying on a 400-mm probe extension.

PSA Group augments its existing arsenal of por-table CMM equipment

Following several Leica Laser Tracker/T-Probe/T-Scan installations, PSA Group has committed to another set of Leica Geosystems PCMM solutions. The Velizy plant near Paris is expand-ing toward PCMM with the addition of a Leica T-Probe to an existing LTD700 Leica Laser Tracker system. In ad-dition, the Sochaux plant is adding a brand new LTD840 Leica System. PSA models like Citroën C2, C3 and the new Citroën Picasso as well Peugeot 207, 307 and 407 models will profit from new Leica Geosystems PCMM solutions that will be used for enhancing technical expertise, tooling inspection and building.

Ceramic in automotive design

Over the past decade, the use of ceramic in automo-tive design and manufacture has become increasingly common. Its powerful physi-cal, thermal and electrical properties make it a reliable, highly durable and cost-effec-tive alternative to metal.

NCSL International August 6-10, 2006 USA, Nashville TNwww.ncsli.org

CIEMEAugust 29-Sept. 2, 2006China, Shenyangwww.zxexpo.com

IMTSSeptember 6-9, 2006USA, Chicago ILwww.imts.com

Tool & MoldSeptember 6-13, 2006Korea, BEXCO, Busanwww.tools.or.kr

MICRONORASeptember 26-29, 2006France, Besançonwww.micronora.com

EXPOMACSeptember 26-30, 2006Brasil, Curitiba-Paranàwww.diretriz.com.br

Technical FairOctober 3-6, 2006 Sweden, Stockholmwww.tekniskamassan.se

MERCOPAROctober 3-6, 2006 Brasil, Caxias-RGSwww.mercopar.com.br

BI-MUOctober 5-10, 2006Italy, Milano - New exhib. Sitewww.bimu-sfortec.com

SIANEOctober 10-12, 2006France, Toulousewww.salonsiane.com

Metal Working China 2006 October 10-13, 2006China, Shanghaiwww.metalworkingchina.com

MESUREXPOOctober 17-19, 2006France, Pariswww.mesurexpo.com

AIRTECOctober 17-20, 2006Germany, Frankfurt/Mainwww.airect.aero

KIMEXOctober 18-21, 2006Korea, CECO, Changwonwww.kimex.org/2006

USINAGEMOctober 24-26, 2006Brasil, Sao Paolowww.arandanet.com.br

EUROBLECHOctober 24-28, 2006Germany, Hannoverwww.euroblech.com

DAMEX November 1-4, 2006Korea, EXCO, Daeguwww.damex.co.kr

JIMTOFNovember 1-8, 2006 Japan, Tokyo Big Sightwww.jimtof.org

MIDESTNovember 7-10, 2006France, Pariswww.midest.com

PROF. MOTORSPORT WORLD EXPONovember 8-10, 2006 Germany, Kölnwww.professionalmotorsport-expo.com

MTQ November 14-17, 2006Germany, Dortmundwww.mtq-messe.de

PRODEXNovember 14-18, 2006Switzerland, Baselwww.prodex.ch

The 8th Dongguan Int’l Mould & Metalworking ExhibitionNovember 15-18, 2006China, Dongguanwww.paper-com.com.cn/

AEROMARTNovember 29-30, 2006France, Toulousewww.aeromart.tm.fr

EUROMOLDNovember 29-December 2, 2006 Germany, Frankfurt www.euromold.com

New version of PC-DMIS available

Wilcox Associates Inc., a Hexagon Metrology Com-pany, has announced the availability of a new version of the PC-DMIS software. With over 30,000 seats in place, PC-DMIS is the world’s leading metrology software for Coordinate Measurement Machines (CMMs). Developed in direct response to requests and suggestions from our user base, this release significantly extends the software’s functionality and enhances its usability. In addition, the new version expands on the concept of Enterprise Metrology Solu-tions (EMS®), by introduc-ing modules that expedite the job of programming and extend the software’s capabilities to other types of measurement equipment. PC-DMIS now supports the Portable CMM products from Leica Geosystems and Romer.

Renault F1 Team pur-chases three Romer articulated arms

This summer marked the centenary of the first Grand Prix race, won by a Renault vehicle in 1906. Coinciding with this anniversary, the UK-based chassis Techni-cal Centre of the world champion Renault F1 Team has acquired 3 articulated arms from Romer, which will be used in the testing and inspection of new vehicle prototypes. The company also uses a Leica T-Probe

Newsticker

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editorial

www.cartoonstock.com

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Custom-tailored tubes

4 measureup measureup 5

Case study

made with a ball-point because of budgetary constraints pre-venting the acquisition of a non-touching probe. In addition, the arm they purchased back then had a limited radius and required frequent repositioning. Plus, there was the issue of shared owner-ship of the arm.

Looking back, this intermediate solution was beneficial for TUBAZUR because the company could get its feet wet in articu-lated arm use. Based on the many positive experiences amassed with the first Romer arm, the company decided in 2006 to pur-chase a modern, brand-new articulated arm from Romer.

Barbier explains: “Many of our clients own a Romer arm them-selves, so the fact that we own one as well puts their fears about accuracy to rest. The articulated arm purchase has enabled us to expand into the growing automotive sector, offering more direct cooperation with our clients.” Nowadays, it is extremely impor-tant to always have the right tools that can be adapted swiftly to the clients’ ever-changing needs. In addition, Romer’s geographical proximity and the excellent after-sales service give both TUBAZUR and its customers a peace of mind.

All types of users—from the bending technician, workshop technician with a metrology background, all the way to the quality manager and the CAD technician—all appreciate the simplicity of using the Romer articulated arm, especially the G-PAD software and the associated multifunctionality. The arm is being used to check the control tools, the assembly and welding equipment and to validate externally acquired components. For the time being, TUBAZUR still uses a control model for large pieces. “The arm will soon become a pure control tool in the production, with its integration into the production being done gradually,” Barbier points out.

Specializing in the back-packing tent manufactur-ing since 1960, TUBAZUR, formerly known as “Ger-man & Lejour,” has made the successful switch to being a subcontractor for the automotive, medical and construction sectors. With a turnover of more than 7.5 million Euros and a workforce of 70 employ-ees, this French ISO 9001-licensed company relies on a Romer articulated arm for production quality inspection.

TUBAZUR processes 3,600 tons tubes a year, in series as small as 50 pieces and as large as 200,000. With an annual growth of 15 percent, the company relies on a core of about a hundred clients, mostly in the medical sector (hospital beds and chairs), automotive industry and construction (antenna masts, scaffolds and shutters). TUBAZUR runs its facilities in 3 shifts from 5 am Mondays to 8 pm Fridays. To keep a competitive edge, a substantial portion of the earnings is being invested into new tools. Among others, there are plans to purchase a tube laser and a welding robot.

Contacts

Full version of this case study available opon request using the feedback form in the back.

For further information, please contact your closest Hexagon Metrology Precision Center (see list on page 14) www.portable-cmm.com

www.tubazur.com

First Romer arm bought second-handThe first foray into the articulated arm arena took place in 2002. TUBAZUR, along with two other regional companies, Société Aremeca in Vendôme and Fonderie Lajoinie in St. Firmin des Près, purchased a legacy pre-owned System 6 Romer arm. The require-ments placed on the metrology equipment included dimensional tool inspection, but the skepticism was high, especially due to the high price associated with metrology solutions. The management needed to justify such a substantial investment, especially whether it would offer the required flexibility and the ease of use. All three companies shared the same concerns. Consequently, all three decided to go with the pre-owned arm that was both portable and required only minimal installation. In doing so, they shared the investment and the risk burden.

The initial results and the degree of satisfactions differed among the three. For Société Aremeca, specializing in mechanical precision, the measurement results did not meet the accuracy requirements. On the other hand, Lajoinie, a foundry, immediately started reaping the benefits of articulated arm use. The company was conducting complex surface measurements and got proficient at using the Romer articulated arm quickly. Thanks to the G-Surf software, the foundry was now able to compare CAD data to actual measurements, analyze the discrepancies and implement corrections right there on the spot.

Jean-Charles Barbier, TUBAZUR CEO, remembers the initial reservations about the articulated arm’s utilization in tube measurement. At the beginning, measurements were

“the articulated arm pur-chase has enabled us to expand into the growing

automotive sector.”Jean-Charles barbier, tUbaZUr Ceo

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romer articulated arms

The portable measuring solution for high accuracy and volume flexibility: with the in-troduction of the FLEX Arm, you can select your favorite 2 sizes in terms of measuring volume depending on your applications.

FLEX is a combination of 2 different arm sizes in only one arm, getting the required accuracy in both applications. The FLEX technology and the modularity concept bring a complete easy handle of the arm and a total comfort of the measurement.

The most complete range in the world (10 references)

• Measurement volume 1,800 – 5,200mm, weight between 5.9 – 6.8kg• Accuracy from ± 25 microns• Infinite rotation on all axes• Able to modify arm size on site between two selected configurations

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ARMTUBE Inspection Tube Series• ARMTUBE is an articulated arm (with a 6th encoder on the arm elbow) specially developed for fast non-contact measurements of bent tubes with very high accuracy•ARMTUBEseries,inadditiontobeingefficientforquicktubechecks, allows for setting up the majority of the benders • These setitngs can be done manually or in an automatical modus with a network link via RS-232 cable, avoiding any risk of operator entry error during bender adjustment• ARMTUBE is made of carbon graphite and aerospace aluminum

G-Pad is a user-friendly software running under Windows XP®

• Powerful 3D graphic viewer shows all geometric features • Simple G-Pad macro programs facilitates time savings during repetitive part measurements • G-Pad creates EXCEL® reports automatically; this inspection report can be easily customized• Minimal training required • G-Pad is especially designed to work with remote control on ROMER 3D portable measuring arms •Probeidentificationandquickchangewithoutre-calibration.• G-Pad calculates geometric features : Point, Line, Plane, Circle, Sphere, Cylinder, Cone, Section, Slot, Length and Angle •G-PadincludesGD&T(flatness,circularity,cylindricity,etc.)

Tube-Inspect is an optional G-Pad module. It offers geometric inspection and non-contact tube inspection at the same time. It uses non-contact measurement technology (infrared and laser). No tube deformation.

FLEX delivery includes

• FLEX arm (2 sizes)• Romosoft including GDS (interface software)• Set of 3 contact probes (point, 6 and 15mm ball ø)•Fixingkit:repeatablemountingpuck,fixingplateand c-clamps• Counterbalance (2 sizes)•Verificationbar• Transport case• Wireless battery pack with WiFi communication (battery life 5 hours, max theoretical range 50m (indoors) and 200m (outdoors), removable Li-Ion battery, sound jack and integrated speaker

Software & hardware complementary equipment

• PC-DMIS, PowerINSPECT, G-Pad, G-Tube: software for geometric andsurfacemeasurement,withorwithoutCADfiles,aswellas tube entities• VPS: Virtual Plate 4,000 x 6,000mm• Non-contact probes for tube inspection• Laser scanning for complex shapes

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1 Infiniterotation

2 Wireless battery pack with WiFi communication

3 Repeatable mounting adaptor compatible with mobile or magnetic stand

4 Very high-resolution encoders

5 New design for optimum rigidity

6 Thermally stable carbon fiber

7 Clamptofixtube

8 Light and ergonomic wrist

9 Adaptor for rotating scanner

10 Touch trigger, contact or non-contact (infrared) probes (quick change and automatic detection)

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measureup What will be some of the chal-lenges for future development of the PCMM market? Where do you see the limitations?

Cesare Cassani: The challenge in the future will be to automate Portable CMM, further expanding the field of possible applications. Achieving even higher accuracies is also a point around which you can either make it or break it in this market.

measureup How has your job changed since the formation of the Portable CMM product organization at Hexagon? How do you approach your customers and commu-nicate the benefits of such a broad variety of available products (articulated arms, laser trackers, scanning and tactile solutions)?

Cesare Cassani: Today, after 11 years with Leica Geosystems, I still sell their products, but in addition to pushing the products I am well familiar with, I also enjoy the challenge of learning about other Portable CMM solu-tions such as articulated arms. At the end of the day, we are interested in providing our customers with the most appropriate solu-tion for their measurement tasks, and having a large portfolio of available solutions only makes my job easier.

measureup Cesare, what is your job title at Hexagon Metrology? What do you exactly do?

Cesare Cassani: Prior to the integration of Leica Geosystems into Hexagon Metrology, I was in charge of promoting, selling and supporting the Metrology products of Leica Geosystems. At Hexagon Metrology, I am part of the new Portable Sales Team and my role has expanded to include the entire product portfolio, which includes promot-ing articulated arms, a product to which I am relatively new. But it has been a great learning experience.

measureup What are some of the cus-tomer trends you see nowadays? Where do you see the role of Portable CMM products on today’s metrology market?

Cesare Cassani: Being part of a large sales organization with a very high territo-rial penetration rate, I can tell you that portable solutions are increasingly gaining on importance. In situations in which the customer doesn’t need measurement au-tomation, portable is the way to go due to its flexibility and ease of use. In addition, for large objects, portable CMM is a must.

providing our customers with the best pCMM solutions around Interview with Cesare Cassani, Hexagon Metrology Italy

CMMs and Vision systems: Brown & Sharpe, CE Johansson, DEA, Leitz, Sheffield, TESA

portable CMM: CimCore, leica geosystems, romer

precision Hand tools: tesa

Hexagon Metrology Profile

Based on the completeness of offering, technological so-phistication and worldwide market coverage, Hexagon Metrology is a world lead-ing supplier of precision in-dustrial metrology products, ranging from hand gauges to coordinate measuring ma-chines and robots, from ad-vanced metrology software to integrated systems for quality assurance. The group

has been formed through the acquisition of leading companies in brands in the dimensional metrology field. The Group’s ten production facilities around the world are organized to ensure that advanced measurement and inspection technology is continuously available and effective for customers. Products are sold through-out the world under the

Brown & Sharpe, CE Johans-son, CimCore, DEA, Leica Geosystems, Leitz, Romer, Sheffield, Tesa and PC-DMIS brand names.

A wide selection of customer-oriented software solutions will be presented in the next issue of measureup in December 2006.

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software solutions

Page 6: measureup - w3.leica-geosystems.com · USINAGEM October 24-26, 2006 Brasil, Sao Paolo EUROBLECH October 24-28, 2006 Germany, Hannover DAMEX November 1-4, 2006 ... plans to purchase

ing based on the new engine arrangement and improve aerodynamics. For the latter, he would team up with the University of Texas at Arlington (UTA) to do an aerodynamics analysis of the entire aircraft. For both of these tasks, Keyt needed to digitize large segments of his plane.

Leica T-Scan Comes Into PlayFor both of these tasks, Leica T-Scan, a high-speed hand scanner, paired to a Leica Geosystems Laser Tracker, was selected because it ideally matched the requirements set for the job at hand. Denny Deegan, a Leica Geosystems Application Engineer from Wichita, KS, drove down to Granbury to perform the job. Leica T-Scan offers three crucial advantages when compared to simi-lar scanning solutions: it is virtually impervi-ous to environmental light and the type of surface being scanned, requiring no surface preparation in most cases. In addition, Leica T-Scan operates in a measurement volume of up to 30m, allowing for the entire air-plane to be scanned with just rudimentary repositioning of the equipment involved. On top of that, the point-cloud data collected by the Leica T-Scan requires no post-pro-cessing to generate a 3D rendition of the scanned object; all data is processed in real time right there on the spot, and is immedi-ately usable.

Because of the Leica T-Scan’s clear advan-tage over similar scanning solutions, Denny scanned the entire plane in merely 16 hours, gathering over 32 million data points. This is a saving of several days when compared to other scanning solutions that require extensive surface preparation and massive postprocessing of data. Dick Keyt was able to follow the progress of the scanning job in real time on an application computer run-ning the T-Collect software, seeing scanned engine segments in real time on a PC screen just as they were being digitized. Various improvement ideas kept popping up in his head almost as quickly as Denny Deegan was able to scan different surfaces.

Sleeker, Faster, Higher“One of the uses for this data will be to de-sign a plenum chamber on top of the engine that would seal all of the air coming into the front inlets and would be independent of the cowling itself,” explains Dick Keyt. “The new plenum chamber will be completely embedded inside the cowling. This will opti-mize the air flow management in the engine, letting us squeeze more power out of it. The more power I have at my disposal, the harder I can push the plane. This is whatreverse engineering is all about.”

10 measureup

Case study

Contacts

Full version of this case study available opon request using the feedback form in the back.

For further information, please contact your closest Hexagon Metrology Precision Center (see list on page 14) www.portable-cmm.comwww.polenspecial.com

measureup 11

the Need for speedMaking a Flying legend Fit For the 21st CenturyYou know you are looking at a piece of

aviation history the moment you set your eyes on it. Its seductive, elegant lines, its smooth, flush-riveted body and the “get-out-of-my-way” scream-ing red all bespeak of an unrelenting desire for speed. The Polen Special airplane, conceived and hand-built by Dennis Polen in 1972, is after all these years still one of the most revered homebuilt aircraft in the world.

At the beginning of the 1970s, available commercial sports airplanes either cost too much money or lacked in performance. Polen’s decision to build his own arose from that simple fact. Essentially a scaled-down WWII fighter minus the armament, the Polen Special, with its ground speed in excess of 480km/h, is still the fastest four cylinder airplane in the world.

Very SpecialThis airplane is literally one-of-a-kind. Efforts were made over the years to con-vince Polen to mass-produce his airplane or at least make its blueprints available, but he remained true to his commitment to keep the plane entirely to himself. After all, the Polen Special is not an airplane for amateur pilots. Intended to fly high and fly fast, the Special spends most of its air time in Class A airspace, above 5,500m altitude under instrument flight rules and subject to air traffic control clearances and instructions, with the pilot breathing oxygen. Dennis Polen took enormous pride in having built such an amazing flying machine. Who could blame him for a little bit of pride of owner-ship? Over the years, the Polen Special has

achieved a truly “Classic” status among the aviation aficionados living in the American Pacific northwest, many of whom have their own Polen “sighting” story that inevitably involves seeing the plane’s tail. As the year passed, the plane’s eminence only grew stronger. In 1997, Dennis Polen made the decision to sell the plane after no longer being able to fly it himself due to a chronic illness, but only under the condition that the plane be put into the capable hands of a pilot who was qualified enough to fly it safely and care for it lovingly. Enter Dick and Debbie Keyt from Granbury, TX.

A Perfect MatchDick Keyt is an American Airlines pilot and an Air Force veteran with an aerospace engineering background. His wife Debbie is a former American Airlines flight attendant and a licensed pilot herself. If foster care for airplanes imposed a set of requirements, Dick and Debbie would pass by birthright. Upon assuming “guardianship” of the Polen Special and flying it at various air shows for several years, Keyt wanted to embark upon making modifications to the plane’s aerodynamics and powertrain but without chipping away at its soul. First, he wanted to redo some of the inefficient “plumbing” underneath the cowling (the sheeting cover-ing the engine in the plane’s nose) and thus increase the power output of the engine. Second, Keyt wanted to redesign the cowl-

© Ph

oto Ed

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leica t-scan

Leica T-Scan is a high-speed hand scanner that digitizes shiny and diffuse surfaces in one go under normal light conditions. With a measurement volume of 30m, it scans large objects more accu-rately and 50 percent faster than comparable products. Set-up times are minimal, and there is no need for photogram-metric targets.

By projecting a laser beam point by point, the high-speed Leica T-Scan uses fly-ing dot scanning to digitize any type of surface at apoint rate of 7,000Hz.

Leica T-Scan features include:• Window for laser beam,

including navigation laser for staying in measurement field

• Measures up to 7,000 points per second

• Class 2 eye-safe laser• Min/max working distance:

41 – 119mm• Automatic intensity adjust-

ment to adapt to metallic and dark surfaces

• Insensitive to environmen-tal light

• Trigger function for data acquisition

• Measurement depth: 78mm

• Scanning width within working distance: 90mm ±25mm

ApplicationsThe hand-held Leica T-Scan laser scanner digitizes small and large objects 50 percent faster than regular scanners. It scans almost any surface with no need for pow-der or photogrammetric targets–from clay and foam to textiles, folio-covered surfaces and sheet metal.

Reverse engineeringThe hand-held Leica T-Scan permits fast and easy scan-ning of objects with virtually no setup time. Millions of points can be delivered for reverse engineering within minutes and in measure-ment volumes of up to 30m.

Focus on technology

leica t-Cam: It’s a Kind of Magic

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In the premiere issue of measureup we talked about the inner workings of the interferometer found inside each Leica Geosystems Laser Tracker. In our second article in this series we are tackling one of the most visually fascinating parts of every Portable CMM system from Leica Geosystems: the Leica T-Cam.

The Leica T-Cam, part of every Leica Geosystems PCMM system or as an add-on option for existing Leica Geosystems Laser Trackers that need to migrate from reflec-tor measurements to PCMM, is a CMOS digital camera system operating with visible light and near infrared (IR) radiation, with an optical vario (zoom) and a motor for vertical, angular movement. Attached to the tracker, the Leica T-Cam continuously follows the target device, a Leica T-Probe or a Leica T-Scan, and captures the images of the IR LEDs located on them (green lines in

the illustration above). The Leica T-Cam’s incremental angle encoder is used to provide the vertical, angular movement of the Leica T-Cam based on tracker guidance angles. The Digital Signal Processor (DSP), located within the Leica T-Cam, makes all the calculations and image processing tasks. The zoom lens group is completely sealed in the body of the Leica T-Cam. This design allows stable and repeatable measurements.

A reflector integrated in the target device (red line in the illustration above), together with a set of ten IR LEDs, represents the measurement targets of the system. Six measurement parameters describe the target device in relation to the tracker system completely. These are 3 position parameters (x, y and z) and 3 orientation parameters (pitch, yaw and roll). Together, they comprise the Six Degrees of Freedom (6DoF) principle. These parameters are de-termined by the tracker (position) and the Leica T-Cam (orientation). In case of Leica T-Probe measurements, the user can select the prism or the tip of the Leica T-Probe as the reference point. For measurements with the Leica T-Scan, the scanned points at the object surface are calculated independently.

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premium Chocolate!*) The first 50 respondents will get a free package of premium swiss chocolate.The prize is not redeemable in cash and must be accepted as awarded. One entry per person. There is no legal recourse. Hexagon employees may not participate.

get measured up!Please send me the marketing materials about the following products:

  Romer Articulated Arms

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Please check all that apply:I would like to order the case studies featured in this issue of measureup:

Romer Case Study: Custom-Tailored Tubes

  PDF (per email)   hard copy

Leica T-Scan Case Study: Need for Speed

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  I would like to receive personal invitations to trade shows at which Hexagon Metrology is exhi-biting. I am interested in the following countries (please specify):

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  Leica T-Probe & Leica T-Scan

  Leica Geosystems Industrial Theodolites & Total Stations

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The IR LEDs are given unique IDs, which identify the LED and its position on the Target Device. After identification of the LEDs in the Leica T-Cam, the IR LEDs are set to measure-ment modus (constant illumination). A minimum of four (4) LEDs must be continuously visible by the Leica T-Cam to allow a reliable 6DoF calculation. Best results are achieved when the visible LEDs are spatially distributed. To avoid uncertainties and bad measurement conditions, the LEDs are divided in 4 different groups and an ac-curate measurement is only possible if each group has in minimum of one LED visible by the Leica T-Cam.

The optical system uses a combination of zoom and focusing lenses together with a long pass absorp-tion filter and a pentagram prism. The optical system is fine-tuned for infrared rays with a 880nm wavelength, which are emitted by the IR LEDs. The built-in insensitiv-ity to radiation outside the infrared zone enables high precision and repeatability of the IR LED images on the CMOS chip. Regardless of whether you are conduct-ing your measurements in direct sunlight, with welding sparks flying around or with sharply changing envi-ronmental light, the Leica T-Cam is impervious to all distractions.

editorial measureup c/o Leica Geosystems AGMoenchmattweg 5CH-5035 UnterentfeldenSwitzerlandPhone +41 62 737 67 67 Fax +41 62 737 68 68www.portable-cmm.com

Lucia Drago, [email protected]

NevenJeremić,ManagingEditorAnne Willimann, Marketing CoordinatorLudwig Willimann, Creative & [email protected]

measureup was launched in 2006 and is published quarterly. Circulation 10,000.

To subscribe for free, manage or cancel your subscription:Phone +41 62 737 67 67 Fax +41 62 737 68 [email protected]

The publisher is not responsible for product claims and representations. All rights reserved. Copyright ©2006 by Hexagon Metrology. Printed in Switzerland.

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FRANCE: Bron (Lyon): Tel. 04 72 37 90 60, Fax 04 72 37 90 61 – Courtaboeuf: Tel. 01 69 29 12 00, Fax 01 69 29 00 32 – Montoire: Tel. 02 54 86 40 40, Fax 02 54 86 40 59 – GERMANy: Munich: Tel. 089 149810-0, Fax 089 149810-59 – Sarstedt: Tel. 050 6698 99-0, Fax 050 6698 99-21 Wetzlar: Tel. 064 412 07 0, Fax 06441 207 122 ITALy: Calderara di Reno (BO): Tel. 051 725254, Fax 051 725288 – Cormano (MI): Tel. 02 615411 1 Fax 02 6150473 – Grugliasco (TO): Tel. 011 4025111, Fax 011 7803254 – Verona: Tel. 045 80 70 174Fax 045 80 70 295 – POLAND: Warsaw: Tel. 022 848 2446, Fax 022 849 8757 SPAIN: Cerdanyola del Vallès (Barcelona), Tel. 93 594 69 20, Fax 93 594 69 21 SWEDEN: Eskilstuna: Tel. 016 16 08 00, Fax 016 16 08 90 – Spånga: Tel. 016 16 08 80, Fax 016 16 08 90 Trollhättan: Tel. 052 01 51 61, Fax 016 17 06 39 SWITZERLAND: Crissier: Tel. 021 633 50 33, Fax 021 633 50 34 – Unterentfelden: Tel. 062 737 67 67, Fax 062 737 68 68 UK: Huntingdon: Tel. 0870 446 2667, Fax 0870 446 2668 – Milton Keynes: Tel. 870 4462667, Fax 1539 737876 Swindon: Tel. 0870 446 2667, Fax 0870 446 2667 – Telford: Tel. 0870 446 2667, Fax 0870 446 2668

www.hexagonmetrology.comwww.portable-cmm.comcontact@portable-cmm.com

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