Amidst speculation in the motion control community, Heidenhain Corp., the German-based encoder company, confirms that it is closing in on a U.S. launch date for a new line of products featuring an all-digital, bi-directional serial interface. "By 2005, there should be several products available, starting with a linear scale in mid-2004, followed by angle and rotary encoders," says Product Manager Tom Wyatt. The high-speed serial interface, known as EnDat 2.2, follows EnDat 2.1, which was introduced 8 years ago. The availability of a purely digital encoder interface has enormous implications for motion control engineers, who will be able to take advantage of clock frequencies of up to 4 MHz over cable lengths up to 100m. Further, position encoders with this type of interface will be able to transmit data, including position data and other parameters, in either direction. "We wanted to give engineers the luxury of having absolute feedback without having to sacrifice speed," Wyatt explains. He says that the products will be backward compatible with the existing 2.1 technology, and that the company plans to offer the EnDat 2.2 for the same price as EnDat 2.1. For more info on EnDat 2.2, visit www.heidenhain.de/pressetexte/english/endat.htm.
Because of the increasing ubiquity of wearable technology, it would be easy to think that design of wearable devices is routine and involves common design and engineering knowledge. Missed efforts in development will be remembered once the devices are used in the field
This grab-bag of new fasteners and adhesives work with a range of materials they can attach to, as well as a wide variety of applications. Several are for use in consumer applications, such as wearables or other compact electronic assemblies, and some of the adhesives have extended service temperature ranges and cure at room temperature.
As governments, associations, and NGOs around the world seek to protect consumers, national and regional standards are becoming mandatory, challenging manufacturers and making testing and certification necessary for any product developed and brought to market.
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