Absolutely, Alex. In my previous position, the MBTF was actually more important than linear accuracy. It was so true that "others" demanded a spare as part of the standard BOM, rather than on the list of suggestions for our customers. (It was useful too, when the mechanical system fail and destoyed the position sensor - which actually was working quite well).
My experience with resolvers was with ABB industrial robots. The first absolute positioning system I saw used 3 resolvers (IRB 90), followed by 2 (IRB 2000) and finally 1 resolver and a revolution counter (IRB 6400). The feature I thought was most useful was it 'failed-safe'. An axis with an encoder has to fail to show movement feed-back when commanded to move to detect a failure. How far does tha axis move before the lack of position change feed-back causes a fault ? With a resolver, a broken wire causes a failure during initialization.
Environmental protection is frequently a deciding factor in industrial environments. Can it take being hosed down with high pressure, caustic solutions such as is found in food processing? Can it resist coolant or oil?
Positional accuracy seems like the key spec when choosing a rotary encoder, but what about MTBF? Does that come into play at all, especially considering that it's a part which gets a heavy and constant workout?
We are using a RVDT to track the opening percentage of large Ball type valves used in Pipelines to monitor closing sequence and speed. Here, resolution was not necessary, but reliability is of utmost importance; the RVDT is rugged and very reliable. Amclaussen.
United Launch Alliance will fly 3D-printed flight hardeware parts on its rockets starting next year with the Atlas V. The company's Vulcan next-gen launch vehicle will have more than 100 production parts made with 3D printing. The main driver? Parts consolidation and 57% lower production costs.
The new small-form-factor EZ-BLE PRoC (Programmable Radio on Chip) module is a derivative of the existing PRoC BLE Programmable Radio-on-Chip solution. The EZ-BLE PRoC module integrates the programmability and ARM Cortex-M0 core of the PRoC BLE, two crystals, an onboard chip antenna, a metal shield, and passive components.
The engineers and inventors of the post WWII period turned their attention to advancements in electronics, communication, and entertainment. Breakthrough inventions range from LEGOs and computer gaming to the integrated circuit and Ethernet -- a range of advancements that have little in common except they changed our lives.
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