|F25 from Carl Zeiss|
|More Safety for the Construction of Medical Devices||Downloads and Links|
|F25 coordinate measuring machine monitors down to the nanometer||RTF Documents|
english (61 KB)
|OBERKOCHEN/Germany, 11.03.2008. |
The safety of patients in the operating room, critical care and in the practice must be ensured. Doctors must be able to rely on their technology and instruments. The F25 coordinate measuring machine (CMM) from Carl Zeiss, which was developed for the quality assurance of micro-parts, plays a key role. It permits contact scanning with very high resolution, as well as optical 2D measurements of features and structures that cannot be touched. CALYPSOŽ CAD-based measuring software supports users during programming, measuring and documenting.
More and more applications require micro-parts. They are essential to miniaturized systems such as pressure sensors, micro-motors and switches, gears, pumps, ball bearings and bio reactors. Their use in medical devices demands high accuracy and the associated reliability and functionality. Only then can an infusion be administered over a specified period with the right dosage. Only then can a high-speed drill work properly at a dentist and maintain the necessary, constant speed of many thousands of revolutions.
With the F25 coordinate measuring machine, Carl Zeiss offers a measuring system that meets the very high accuracy requirements in the quality assurance of micro-parts. The F25 enables determination of size, form and position of the tiny parts that are manufactured through micro-injection molding and milling, micro-drilling and erosion. This high-tech measuring machine permits scanning of geometric structures that are only a few tenths of a millimeter in size and whose production accuracy is less than one micrometer. During measurement, the micro-part must not be deformed, moved or damaged. For this reason, when miniaturized holding equipment is used, the measuring sensor of the measuring machine must be designed in a way that only extremely low forces are used while measuring with contact sensors. The measuring force of the F25 CMM corresponds to one four-hundredths of the probing force of a large industrial measuring machine.
Measure efficiently with CAD-based CALYPSO measuring software
CAD-based software such as CALYPSO must be available for multi-dimensional measuring tasks on micro-parts. As the workpiece features are practically invisible to the naked eye, the control data and measuring program are directly programmed with CAD and tested for interfering contours and navigation capabilities away from the machine before the measurement. This ensures that all features can be reached with the tiny stylus without a collision. Feature-controlled, object-oriented CALYPSO software enables the selection and measurement of as many features as needed from the entire measuring program – without additional work. This is a decisive advantage when using the measuring program for detailed measurements on the workpiece.
Contact measurements with measuring uncertainty of 250 nanometers
The measuring volume of the F25 3D coordinate measuring machine is one cubic decimeter. Measuring uncertainty for this volume is 250 nm at a resolution of 7.5 nm. Using minimal probing forces, this resolution, along with optimum control of the linear drives, enables contact measurements even in bores less than one millimeter in diameter. The probing forces have also been minimized to less than 0.5 millinewtons.
The 3D micro-stylus is designed for stylus diameters of 20-500 micrometers and stylus tip diameters of 50-700 micrometers with a free shaft length of up to five millimeters. For comparison: a two-cent coin has a diameter of 18.75 mm.
An optical sensor enables 2D measurements. Its optics are based on microscope lenses and have been optimized for the measurement of micro-parts. An additional camera provides assistance while probing the extremely small features. This simplifies learn programming.
Image Download (JPG: 1,2 MB)
F25 measuring machine from Carl Zeiss for the quality assurance of micro-parts.
Phone: +49 7364 20-3539
Fax: +49 7364 20-4657
Media/Press contact for North America
Carl Zeiss IMT Corporation
Maple Grove, Minnesota, USA
Phone: +1 763 744-2408
Fax: +1 763 533-0219
Number: 0058-2008-ENG IM