Navigation Links
New freeform standards to support scanning CMMs
Date:11/14/2012

The National Physical Laboratory (NPL), the UK's National Measurement Institute, has developed a new range of three dimensional standards for verifying freeform coordinate measurement machines (CMMs). The standard allows the verification of portable and fixed non-contact coordinate measuring systems such as those employing laser scanning and fringe projection technologies, as well as those employing tactile sensors. It also helps evaluate the surface measurement capabilities of new scanning measurement technologies.

Items that are freeform are unconventional in shape or design, especially in being asymmetrical and irregular, but with a flowing outline. Freeform manufacturing projects include the development of more efficient engines for aeroplanes, drag reduction for cars, longer lasting prosthetics and reverse engineering of archaeological finds to learn about their provenance.

Traditionally such forms have proved difficult to measure practically with optical systems of the type used on production lines or away from the factory. It is often difficult to provide measurement traceability for mass produced freeform shapes, limiting innovations in freeform manufacturing. With the right measurement facilities, freeform brings many advances to the manufacturing sector.

NPL FreeForm dimensional standards ensure measurement traceability within freeform manufacturing industries. The standards are complex reference artifacts which provide traceability routes for a range of diverse measuring techniques.

Each NPL FreeForm standard bears several geometrical forms that are blended to form a single surface that tests various aspects of a scanning instrument's performance. Ceramic tooling balls or hemispheres on each corner of the standards aid registration. The precise nature of the surface employed by the standard allows traceability to be transferred to the freeform measurement technology. It is also possible to incorporate designed deformation to the surface, typically 100 m in size.

The Freeform development project was funded by the National Measurement Office. NPL worked with industry on a number of freeform measurement projects to identify the relevant measurement requirements. These highlighted many errors in existing optical scanning measurement systems, which the final artefact was designed to overcome.

The FreeForm standards are available to buy directly from NPL and are each supplied with a calibration certificate, the relevant CAD model and traceable measurement data files. It also forms part of NPL's calibration consultancy offer, which can be carried out onsite or at NPL.

The NPL FreeForm standards are available in various sizes. They have linear base dimensions nominally 37.5mm, 75mm, 150 mm and 300mm and bearing four ceramic tooling balls.


'/>"/>

Contact: David Lewis
david@proofcommunication.com
44-084-568-01865
National Physical Laboratory
Source:Eurekalert

Related biology technology :

1. Happtique Releases Draft App Certification Program Standards For Public Comment
2. A milestone in nanoparticle research: Nanoparticle test handbook sets the standards
3. Quality Standards Established for Competition to Identify Best Researchers in the US
4. iBio, Inc. Submits Plan to Satisfy NYSE Amex Continued Listing Standards
5. Promotion of Young Researchers Supported by Major Donation
6. Mangrove Partners Agrees to Support Amended Transaction Between Nabi Biopharmaceuticals and Biota Holdings
7. Seaside publishes research supporting disease-modifying potential of STX209 for fragile X syndrome
8. UPMC Invests in Intelligent Infrastructure with IBM to Support Vision of Personalized Medicine
9. ARMGO Pharma, Inc. announces data which supports its Rycal program as a novel approach for the treatment of stress-induced cognitive disorders
10. Elekta President and CEO Tomas Puusepp Pledges Support in Addressing Global Cancer Challenge at World Cancer Leaders Summit in Montreal
11. Elusys Awarded Additional $50.2 Million Under An Exisiting U.S. Government Contract To Support Final Stages Of Development Of ETI-204, For Treatment Of Inhalational Anthrax
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/30/2016)... BILLERICA, Massachusetts , 30. November 2016 ... und Technologieunternehmen, hat heute die Unterzeichnung einer ... gegeben. Diesen zufolge wird Evotec AG Screeningleistungen ... und shRNA-Bibliotheken bereitstellen. Der Zugriff auf diese ... Bereich Screening eröffnet einen schnelleren Weg zur ...
(Date:11/30/2016)... Lafayette, IN (PRWEB) , ... November 30, 2016 , ... ... industry experts to discuss the implications of the latest FDA guidance on pharmaceutical ... December 8, 2016 in Cambridge, MA. , The event follows the successful ...
(Date:11/30/2016)... Triangle Park, North Carolina (PRWEB) , ... November 30, 2016 , ... ... (IUPAC) approved the names and symbols for four elements: nihonium (Nh), moscovium (Mc), ... Following a 5-month period of public review, the names earlier proposed by the discoverers ...
(Date:11/30/2016)... ... November 30, 2016 , ... Microbial genomics leader uBiome ... Arianna Huffington, as part of the Thrive Global pop-up store. This stunning 5,000 ... to explore the microorganisms in their gut, collectively known as the microbiome. , ...
Breaking Biology Technology:
(Date:11/15/2016)... 15, 2016  Synthetic Biologics, Inc. (NYSE MKT: ... on the gut microbiome, today announced the pricing ... of its common stock and warrants to purchase ... price to the public of $1.00 per share ... from the offering, excluding the proceeds, if any ...
(Date:6/27/2016)... 2016 Research and Markets has announced the ... report to their offering. The ... to grow at a CAGR of 12.28% during the period ... an in-depth market analysis with inputs from industry experts. The report ... years. The report also includes a discussion of the key vendors ...
(Date:6/21/2016)... Columbia , June 21, 2016 ... to the new role of principal product architect ... named the director of customer development. Both will ... chief technical officer. The moves reflect NuData,s strategic ... in response to high customer demand and customer ...
Breaking Biology News(10 mins):