Center for Manufacturing and Metrology (CMM)

The Center for Manufacturing and Metrology, built with the support of Pratt & Whitney, extends our capability of providing technical service and training to industry in coordinate measuring machines, structured light scanning and scanning electron and optical microscopy, surface profiling. The Center for Manufacturing and Metrology is jointly sponsored by the Connecticut Center for Advanced Technology (CCAT) and the College of Engineering, Technology, and Architecture, University of Hartford (CETA). Our faculty and associates have significant research and training experience in related areas that attribute to the success of this center.

The Center for Manufacturing and Metrology's vision is focused around your success, including:

  • Excellence in industrial metrology from meso scale to nano levels
  • Create a national resource in workforce development and research in measurement science

The courses outlined below are targeted to all Pratt & Whitney employees and suppliers who get involved in the challenges of measurement. This may include understanding how to perform a layout inspection of a particular GD&T feature, conducting a Gage Capability Study and how basic and advanced gages are used. All courses take place in the Pratt & Whitney Metrology Laboratory at the University of Hartford that is stocked with the latest in basic mechanical and non-contact gages that you will get hands-on experience using.

Contact Director Chittaranjan Sahay or Associate Director Suhash Ghosh for more information.

Certificate in Manufacturing Metrology

Come explore the world of dimensional measurement in this five-day certification program. Whether you are a new employee to a Pratt & Whitney plant site or a Pratt & Whitney supplier, or one looking for refresher training, this certificate program will cover the fundamentals required to understand in a hands-on manner what it takes to properly utilize the most common measurement instruments used on aerospace engine components. The ability to measure properly and to evaluate measurement systems used is becoming more prevalent in today’s competitive manufacturing landscape that interacts with tighter product tolerances, applied process controls and product acceptance plans.

Certificate in Advanced GD&T (ASME Y14.5 2009)

GD&T is a system for defining and communicating engineering tolerances by using a symbolic language on engineering drawings that describe nominal (theoretically perfect) geometry of controlled features, as well as their allowable variation in size, other geometrical characteristics (form, orientation, location)  and variation between features. Per this language, dimensions are selected to suit function and mating relationship of a part and are subject to a unique interpretation. The course focuses on the fundamental understanding of the 14 tolerances and their inspection techniques, concepts of datums, features, feature modifiers, datum modifiers, datum boundaries, and design of functional gauging. Practical aspects of different call-outs are discussed with opportunity for hands-on experience.

Certificate in Fundamentals of Airfoils

Airfoil Modeling & Metrology involves a wide range of technologies & challenges. The need for faster and more accurate “in process” and “final acceptance” measurement data has seen the emergence of many new 3D Model-based technologies such as CMM scanning & Structured Light. Historically, airfoil surfaces have been defined and analyzed as a collection of airfoil sections comprised of ordered X, Y and Z coordinates.

Many of the current structural & aerodynamic codes used at engine OEMs are still based on the analysis of planar, conical, or streamline airfoil sections.  In addition, many of the processes & procedures used at airfoil supplier sites remain “section based.”  This course focuses on the (still relevant) use of airfoil section based techniques & analyses while, at the same time, showing how they complement the transition to the next generation process.

This two-day program will start off by covering the fundamentals of airfoils including geometry and the influence of its function. In addition to current airfoil based techniques, the course will also provide an overview of the next generation process (currently being transitioned to) focusing on the use of 3D Model-based measurement, functional analysis codes, and multi-variant & principal component statistical analysis. The second day of the course will provide the student with some hands-on experience using CMM dimensional and geometrical inspection techniques.

Graduate Certificate in Metrology

Earn a Certificate in Manufacturing Metrology through the College of Engineering, Technology, and Architecture (CETA). Courses run concurrently, and you have the potential to complete the certificate in one year.

Additional Information

Chittaranjan Sahay

Professor Sahay is the Vernon D Roosa Distinguished Professor of Manufacturing Engineering and Professor of Mechanical Engineering and Associate Dean for CETA. Dr. Sahay has worked in the area of manufacturing and metrology for more than thirty years. He has worked with the National Institute of Standards and Technology (NIST) for developing fiber probes for making nano level measurements and has published in the subject area. He has also published in the area of uncertainty analysis of cylindricity measurements. He has taught courses in the area of metrology at various levels including newly developed course in Gage Quantification. He is scheduled to teach a course in Principles of Dimensional Metrology and Metrology Projects. He has also received training in coordinate measurement machines, laser scanners and Structured Light Scanners.

Suhash Ghosh

Professor Ghosh has worked in the areas of design and manufacturing for over ten years. While working with BOSCH India in their distributor type diesel fuel injection pump division, he gained valuable experience in quality inspection tools and methodology. In line with his experience, he is currently developing a course in Advanced Geometric Dimensioning and Tolerancing for Summer 2012. He has successfully completed the training on FaroARM articulated robotic arm coordinate measuring machine and the structured light scanner/interferometer.

Mohammad Saleh Keshawarz

Professor Mohammad Saleh Keshawarz is Professor and former Chair of the Civil and Environmental Engineering Department, Dr. Keshawarz has conducted extensive research in the study and analysis of microstructure of stabilized soil and concrete. He has used scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and X-ray diffraction techniques in the identification of reaction products of stabilized soils concrete. His research on the microstructure has led to the publication of several research well-regarded articles.

Hemchandra Shertukde

Professor Hemchandra Shertukde is Professor of Electrical and Computer Engineering. He is a recognized expert in signal and image processing. He has also extensively worked in the area of multi-target multi-sensor tracking using infrared sensors and probabilistic data association techniques.

Hisham Alnajjar

Hisham Alnajjar is the Dean of the College of Engineering, Technology and Architecture and a Professor of Electrical and Computer Engineering. He has worked extensively in signal and image processing including character recognition. His research interests include sensor array processing, digital signal processing theory and real-time applications, power systems in addition to engineering education. These will be important for defect identification on manufactured items.

Nikon Metrology, Inc.

Today Nikon is a world-renowned brand, firmly established as a market leader in optical instrumentation and the only microscope company to manufacture its own glass, ensuring the very finest quality assurance throughout production. With over 90 years expertise in the field, Nikon has always been at the forefront of optical and technological innovation, promoting creativity and trustworthiness as part of the company's global mission statement. With the acquisition of Metris in 2009, Nikon enlarged its portfolio with optical 3D measuring instruments. The new division "Nikon Metrology" today offers the broadest range of metrology solutions for applications ranging from miniature electronics to the largest aircrafts. Nikon Metrology’s innovative measuring and precision instruments contribute to a high-performance design-through-manufacturing process that allows manufacturers to deliver premium quality products in a shorter time.

FARO Technologies, Inc.

With more than 30,000 installations and 15,000 customers globally, FARO develops and markets computer-aided coordinate measurement and imaging devices and software. Portable equipment from FARO permits high-precision 3D measurement, imaging and comparison of parts and compound structures within production and quality assurance processes. The devices are used for inspecting components and assemblies, production planning, 3D documentation, as well as for investigation and reconstruction of accident sites or crime scenes. They are also employed to generate digital scans of historic sites. Principal products include the world’s best-selling portable measurement arm – the FaroArm®; the FARO® Laser Tracker ION; the FARO Laser ScanArm®; FARO® Laser Scanner; the FARO® Gage; and, the CAM2 family of advanced CAD-based measurement and reporting software.

The L.S. Starrett Company

The L. S. Starrett Company, founded in 1880, manufactures more than 5,000 variations of Precision Tools, Gages, Measuring Instruments and Saw Blades for industrial, professional and consumer markets worldwide. Starrett, a leader who has set the standard for fine precision tools in for over 131 years, has rightfully earned the title, "World's Greatest Toolmakers". Starrett has a history and reputation so rich and solid that the words “quality” and “Starrett” have become virtually synonymous. The broad Starrett product line includes precision measuring tools (micrometers, calipers, rules, etc.), levels, electronic gages, dial indicators, gage blocks and granite surface plates and custom engineered products. The company offers metrology equipment including optical measuring projectors, vision systems and multi-sensor measuring systems, many of which are custom engineered. The precision group also includes M1 lubricant, precision ground flat stock and drill rod. Starrett hand measuring tools and other precision products are used by manufacturing companies of many types and sizes to ensure the quality of their products.

Carl Zeiss Industrial Metrology

Carl Zeiss Industrial Metrology is the world’s leader in CNC coordinate measuring machines (CMMs) and complete solutions for multidimensional metrology in the metrology lab and production. We offer bridge-type, horizontal-arm and inline measuring machines, as well as form, contour and surface measuring machines, our METROTOM Computed Tomography system, and the O-INSPECT multi-sensor CMM. We develop and manufacture all key components, such as controllers, software, measuring systems and sensors to provide the best metrology experience.

Renishaw Inc.

Renishaw is a global company with core skills in measurement, motion control, spectroscopy and precision machining. Their innovative sensors for co-ordinate measuring machines (CMMs) are an industry standard, from basic touch-trigger probes and manual probe heads, through to automated stylus changers, automated probe changers, motorized indexing probe heads and revolutionary five-axis measurement systems. A full range of probe styli/probe tips is also available.

Mahr Federal Inc.

Mahr Federal Inc., a member of the Mahr Group, has been providing dimensional measurement solutions to fit customer application needs for over 150 years. The company manufactures and markets a wide variety of dimensional metrology equipment, from simple and easy-to-use handheld gages to technically advanced measurement systems for form, contour, surface finish and length. Mahr Federal is also well known as a producer of custom-designed gages and a provider of calibration and contract measurement services.

Connecticut Center for Advanced Technology, Inc.

CCAT's Modeling & Simulation team advises companies and educators on the use of new methods of measurement techniques, such as non-contact measurement, which can give quicker and more complete information on a particular part. CCAT is also exploring the latest capabilities in traditional contact measurement approaches, including new software tools for more efficient programming of Coordinate Measurement Machines (CMMs). CCAT has recently developed an affordable, automated structured light projection system for rapid inspection and reporting of complex manufactured parts.

Laboratories, Facilities, and Equipment

The primary metrology lab is housed in Dana Hall 102 at the University of Hartford. The University of Hartford machine shop has facilities in turning, milling, and grinding operations. The facilities include a CNC machine tool and a 3D Rapid Prototype Printer. The laboratory has several laser-based equipment such as Surface Roughness Measurement Instruments - Federal Pocket Surf, Computerized Surface Roughness Analyzer CSRA-1000, Probe Type Roughness Sensor, and image processing system.

Facilities and Equipment

CCAT Structured Light System

This affordable, accurate and easy to use Structured Light Scanning system for Inspection/Reverse Engineering has the options of single scan manual feature alignment, motion control alignment, photogrammetric dots, multiple scanner geometric object alignment and automated cleanup with noise filters, hole filling, scan merging, abnormal triangles and smoothing.

Faro Articulated Arm CMM

The FaroArm Platinum’s high accuracy renders traditional CMMs, hand tools and other portable inspection equipment obsolete. Anyone, anywhere can now inspect, reverse engineer or perform CAD-to-Part-analysis on parts, fixtures and assemblies with high precision. With its accuracy starting at ±0.029 mm, 7-axis availability, 6-DOF probe, composite material construction, temperature and overload sensors, Bluetooth® cable-free operation and multi-probe capability, it is ideal for forming, molding, fabricating, casting and assembly facilities needing basic 3D measurements or advanced GD&T and SPC output.

Amray Scanning Electron Microscope

The Amray 1830 is our newest Scanning Electron Microscope and still a project in the works. It is a fully analytical SEM which is turbo pumped and uses a Tungsten filament. It is equipped with an EDAX 9800 X-ray system, a Robinson backscatter detector, and an Acorn computer controlled stage.

MarSurf XR1

With the mobile surface measuring units from Mahr, Bluetooth technology was brought into the world of metrology. Based on this technology, Mahr carried out further developments. The result is the new MarSurf XR 1. The MarSurf XR 1 combines mobile surface metrology with the advantages of a MarWin evaluation software. This means, for a roughness or waviness measurement, a simple all-in-one PC as well as the suitable drive unit suffice. Depending upon the customer's needs, laptops or industrial PCs can also be implemented. Bluetooth technology offers a special degree of freedom, for in addition to the cable connection between the drive unit and evaluation unit, the connection functions also cable-free. The measurement can be comfortably activated by touchscreen or the respective drive unit and the data transferred to the computer. The surface measuring unit Marsurf XR 1 offers you the most cost-efficient entry to comfortable surface metrology.

MarForm MMQ 100

The MarForm MMQ 100 offers superior accuracy in a rugged, shop floor hardened package. In combination with the EasyForm Software it represents the perfect solution for simple yet powerful measuring tasks.

NIKON LK V 10.7.6 HA

LK V bridge CMMs are standardly available in a wide range of measurement volumes ranging from LK V 6.5.4 to LK V 40.20.15 covering most inspection applications. For applications requiring specific or larger measurement volume, an LK V CMM can be delivered to the customer’s needs.

Nexiv VMZ-R4540

The CNC Video Measuring System "NEXIV VMZ-R4540" is capable of accurately measuring the dimensions and shapes of high density and multi-layered electronic components. Some of its key features include zoom systems provide a clear and low distortion image and high NA. The Type A zoom system is designed for a wide field of view and long working distance, Designed to detect the surfaces of thin transparent materials, the new Laser AF works with the same high speed and high accuracy as the VMR series Laser AF, Episcopic, diascopic and ring illuminations employ white LEDs and provide stability and long life. The new ring light system has three incident angles designed for correct edge capture, streamlined and logical software, measuring accuracy is further improved, faster throughput.