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Mahr Federal Builds Wireless Data Transmission into its MarCal Digital Calipers
16 EWRi Digital Calipers with internal MarConnect transmitters and MarCom software allow for economical implementation of secure wireless data transmission
Mahr Federal has built wireless data transmission into its family of MarCal Digital Calipers, making them available for the same price as a typical wired caliper. Using proven wireless technology first developed for MarCator digital indicators, new MarCal digital calipers send data to a small i-stick receiver, resembling a common USB flash drive. MarCom software makes data acquisition even simpler: just take a measurement and transmit your measuring data directly into MS Excel or via a keyboard code into any Windows program without cumbersome cables. It's even possible to apply the 16 EWRi wireless data collection capabilities to existing SPC applications.
New low power data transmission technology has allowed the transmitter to be built into the digital indicator. Integrating the transmitters with MarCal digital calipers eliminates expensive power hungry add-on transmitters that can make gages bulky and interfere with portability, saving hundreds of dollars compared to "add-on" wireless transmitter based systems. Each MarConnect i-stick wireless receiver supports up to eight measuring instruments with a range of up to 12 meters, perfect for most bench-top or workstation applications. And since i-stick receivers are so inexpensive, it's now possible to add a receiver to every workstation in the shop.
With a sleek new-look, MarCal 16 EWRi digital calipers are easier to read with a large clear digital display, and include a number of advanced features, such as lapped guideways, a reference system that retains the zero position setting, and a number of product options and accessories. MarCal 16 EWRi digital calipers are protected against dust and immersion to class IP67. Advanced electronics provide increased battery life and the line is available in a wide range of sizes.
The MarConnect integrated wireless interface is active as soon as the i-stick is plugged in, and each indicator is identified by signal coding in the MarCom software so there is no confusion as to signals. Wireless data transmitters are built into MarCal 16 EWRi digital calipers, so no interface boxes or additional batteries are required. Plus, integrating the transmitters into the caliper's electronics makes the units extremely energy efficient and can extend battery life up to 50% longer than competitive systems.
Integrated wireless gives more freedom of movement. For example, when measuring on or at the machine, or with large workpieces, wired cables or cumbersome add-on modules do not obstruct the gage's use. Successful data transmission is confirmed with a message on the digital indicator's display.
Mahr Federal Introduces Redesigned MarShaft™ Scope Plus
Mahr Federal has introduced a new, totally redesigned version of its MarShaft™ Scope, its high-precision, fully automatic optical measuring system for dimensional testing of turned parts. The new MarShaft Scope Plus is now twice as accurate as previous -- and competitive -- models. It offers micron level measurements, and includes a new MarWin®-based controller and system architecture that opens new levels of machine capability. The new MarShaft Scope Plus also incorporates new EasyShaft™ operating software that facilitates easy and quick measurements. The optional ProfessionalShaft™ software high-level script programming allows virtually unlimited customizing capability for these systems.
"The goal of this ground-up redesign was to apply Mahr's extensive experience in form, surface, and contour measurement to the world of optical shaft measurement and fundamentally change what is possible," said Pat Nugent, Mahr Federal Vice President for Metrology Systems. "In addition to mechanical enhancements that improve accuracy, we're now using the same electronics and controller architecture, and the same MarWin operating platform, as our high-end form testers. This, in concert with the new EasyShaft software allows users to do things with these systems that have never been possible before."
In terms of accuracy, the error limit for measuring length with the new MarShaft Scope Plus is (2+L/ 125) µm, compared to (5+L/ 100) µm for the previous version and leading competitive models. For diameter, the error limit for the MarShaft Scope Plus is (1+L/ 125) µm, compared to (2+L/ 100) µm for competitive models. "This groundbreaking level of accuracy for an optical shaft measuring system allows high precision measurements on turned parts that typically couldn't be measured by these types of systems," said Nugent.
Operational software for the MarShaft Scope Plus comes in two levels: basic and professional. Basic EasyShaft software provides simple touch screen operation utilizing selectable feature icons, many of which are easily recognizable from the standard Feature Control Frames that the user sees on their part drawings. Multi-feature measurement routines can be easily constructed without programming knowledge, and EasyShaft will automatically optimize them to assure the fastest possible measurement. All MarShaft Scope Plus systems are equipped with touch screens with intelligent multi-touch gestures built in, so zooming in on specific features is as easy as the two finger "pinch to zoom" we all know from typical tablets. Moving the camera view around the machine is done by a flick of the finger on the screen just as you would do to scroll up or down on a tablet.
ProfessionalShaft script-level programming of the new MarShaft Scope Plus allows expert users virtually unlimited access to the machine's capabilities. This offers tremendous flexibility for custom application development, either by users or by Mahr Application Specialists. Highly complex measuring, control and evaluation routines for special parts can be developed, but activating them can remain as simple as touching an onscreen icon or button.
The MarShaft Scope Plus is suitable for use in both production and metrology lab environments. Optional equipment includes a tactile measuring system with an inductive measuring probe to measure such things as run-out and straightness. All measuring runs are fully automatic and thus free of operator influence. The new MarShaft Scope Plus is available in a number of sizes and configurations to match a multitude of applications.
Mahr Federal Introduces MarVision MM 320 Video Measuring Microscope with Image Processing
Mahr Federal has introduced a new video measuring microscope with image processing capability, the flagship product for a new line of Mahr optical measuring instruments. Designed for the measurement and/or dimensioning of geometric elements, the MarVision MM 320 incorporates an integrated CCD color camera with zoom lens, a 23" touchscreen PC with keyboard and mouse, and easy to use Windows 7-based M3 software. Automatic edge detection allows even low contrast features to be measured, and a Multi Touch function provides quick and continuous variable magnification using either touchscreen or mouse.
"MarVision optical measuring instruments offer a quick and reliable solution to many different 2D measurement and inspection tasks," said George Schuetz, Director Precision Gages for Mahr Federal. "Applications range from cutting tools and precision products for manufacturing, plastics, and medical technology, to miniaturized electronic components. These extremely precise measuring instruments are designed to meet the highest quality and production requirements."
The MarVision MM 320 rests on a robust hardened granite base with a precision mounted XY table. An optical incremental measuring system assures quick and fine adjustment of the axis, and a laser pointer assists with part positioning. The CCD camera and Navitar Zoom lens with 0.7-4.5x magnification are mounted on a stable Z-column with 200 mm vertical movement. Coarse and fine height adjustment knobs are mounted on both sides for precise focusing. Illumination is provided by a quadrant LED ring top light with four individually controlled segments, and table mounted Telecentric LED transmitted light for more focused measurement of rotationally symmetric parts.
The automated video edge detection and multi-touch functions make the MarVision MM 320 especially suitable for a wide range of punched and flexible parts, plastic components and electronic circuit boards. Measurement and evaluation functions include: Point, such as the intersection of straight lines; Line, including line of best fit and/or centerline; automatic calculation of a Circle, including index and pitch circles; Distance between points or point and line; Angle taken from two lines; and Alignment of axis of the coordinate system on the test piece.
Other products in the MarVision line include a stereo-zoom microscope with or without digital camera; an optical measuring microscope with optional graphic LCD operating and display unit for evaluation of geometric elements and PC integration; and a full-featured measurement station designed for fast, close to the grinding machine evaluation of cutting inserts and flat components such as punch and stamped parts.
Mahr Federal Inc., “The Application Specialist” and a member of the Mahr Group, has been providing dimensional measurement solutions to fit customer application needs for over 150 years. We offer calipers, micrometers, dial and digital indicators; mechanical, plug, air, and electronic gages; height gages and dimensional standards; measuring microscopes, calibration systems and lab gages; form, surface roughness and contour; gear and shaft measurement systems; custom design and build gages; gage repair, calibration, and field services. We are ISO/IEC 17025:2005 Certified and offer contract measurement and calibration services.