December, 2011
Molding Continued from page 60
Adding Speed and Quality to Ultra-Clean Silicone
Based on expertise built up over the years, FMI is recognized as a leader in insert molding and bonding of sili- cone to various substrates. “High precision and process val-
idation is key in the medical device business, to make sure critical sili- cone parts can be confidently incor- porated into lifesaving medical devices and state-of-the art laborato- ry equipment,” remarks Sant. “The Nikon Metrology iNexiv system is ideal to measure any of our silicone molded parts, including micro-preci- sion parts manufactured to the tight- est tolerances. It outperforms our previous manual video measuring system in terms of measuring accu- racy and speed as well as repeatabil- ity and reproducibility. We notice that leading medical device manufac- turing firms trust our inspection qualification and validation reports better, because the majority of them are Nikon users themselves who know the system we are using.” FMI is also a long time user of
many stereomicroscopes from Nikon and NIS Elements software to char- acterize the detailed features of molding tools. The iNexiv CNC video measuring system was purchased after concluding a detailed compari- son study including demos and benchmarks involving several differ- ent brands. “All along, we felt that Nikon better understands our busi- ness, and that iNexiv hardware and software are better aligned for inspecting medical device compo- nents,” Sant clarified. “We would def- initely recommend Nikon to any of our business partners, also because we are very satisfied with the provid- ed training, support and advice.” Contact: Nikon Metrology, Inc.,
12701 Grand River, Brighton, MI 48116 % 810-220-4360 E-mail:
jeffrey.bourque@
nikonmetrology.com or
Marketing_US@NikonMetrology.com Web:
www.nikonmetrology.com r
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Every special feature, every news article, and every new product release printed in the past three years is
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Page 69 Customizing COTS Test Systems Continued from previous page
provided its customer with custom software that could be used to easily align data acquisition between the two cards through a visual represen- tation of the signals. The application also required a
subtle adjustment to the sampling rate in order to cover the system’s entire EM frequency spectra. According to the Nyquist Theor -
em, the sampling rate must be at least twice the highest analog frequency for completely accurate analog-to-digital conversion (ADC) of the signal. The GaGe card delivered a
2GS/s sampling rate, but the cus- tomer wanted to be able to accurate-
ly identify signal frequencies up to 1GS/s. To build in flexibility, the customer specified 2.1 to 2.2GS/s sampling rate for the card. Because GaGe utilized fixed
oscillators, it had to look elsewhere for a solution. Fortunately, GaGe’s digitizers have a built-in 10MHz ref- erence input as part of its standard reference circuitry that, multiplied by 200 provided the 2GS/s. GaGe modified the normally
fixed reference input to be adjustable between 9 and 11MHz so the sam- pling rate could be tuned to 90-110 percent of 2GHz which delivered a 1.8 to 2.2GS/s sampling rate. According to KineticSystems’
Krebs, there is a limit to customiza- tion that should be expected from COTS products. “Once you get to the point of having a vendor create a new circuit board, you are really design- ing a fully custom product,” says Krebs. “The expense goes way up, and you are no longer reaping the ad - vantages of COTS modules.” The bottom line: modular instru-
ment manufacturers need to be able to deliver the best of both worlds — a level of customization at the price and timing of COTS products. Contact: Kinetic Systems, 900
North State St., Lockport, IL 60441 % 815-838-0005 fax: 815-838-4424 Web:
www.kscorp.com r
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