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ALTERNATIVE METROLOGY


pensates for pressure fl uctua- tions, eliminating the need for a precision pressure regulator. Another example of advances


Marposs offers a variety of gages, spindles, masters, and air-to-electronic converters for maximum utility and fl exibility.


Advancing Electronics Powell from Marposs predicts that air gaging will progress with the advance of electronics that convert air pressure into an electrical signal. Marposs provides these air-to-electric converters both for use in measuring systems and on ma- chine tools for in-machine process control. “The kind we use on machine tools uses a higher pres-


sure and provides a much faster reading to keep up with cut- ting or honing operations,” he said. “The future of air gaging developments is going to be in the air-to-electronics con- verter.” The Marposs Air-To-Electronic Converter is designed for use with a number of Marposs-supplied industrial PCs. It features noise of less than 0.3 µm and linearity error in the range ±30 µm of less than 2 µm. Recognizing the importance of the air-to-electronics conversion, Jenoptik has also advanced the fi eld of electro- pneumatic transducers with its TPE99 and recently released TPE200 transducers. Producing a digital CANbus/CANopen signal, the unit is also about 1 × 1 × 3" (25 × 25 × 75 mm), small enough to fi t directly onto the measurement tooling. The company boasts that the TPE200 has a measurement noise of less than 0.1 μm and a response time of just 15 ms. “This makes it suitable to be used directly on a machine tool, say a honing machine, to measure the ID of a hole,” said Blind. In response to concerns about the expense of air, their transducers are capable of detecting when the supply pres- sure falls below 2.5 bar. If it does the tranducers will switch off automatically. The company also claims the device com-


96 AdvancedManufacturing.org | September 2016


in this fi eld comes from a small company named Broadteq (Genesee, MI). It now offers an advanced air-to-electric con- verter that provides a digital- only output. “The advantage of a digital-only output is its range of error,” explained Jerry Seymour sales manager for the company. “Twenty percent of range is natural with analog, while our [direct-to- digital] technology measures only 2% conversion error,” he claimed. They do not make or adapt gages


themselves, but rather provide the critical piece to incorporate gage readings into computers and displays. “Our customers are machine tool builders or gage builders,” he said. Another feature Seymour notes is especially important is


the Broadteq AEC direct connection to the Solartron Orbit protocol. This allows air gaging measured with the Broadteq AEC to be mixed with Solartron digital probes on the same network. Relatively small at 1 × 3.5 × 4" (25 × 90 × 100 mm), it can use either 30 or 60 psi (210 or 420 kPa) air.


? Air Gaging 815-242-0027 / www.airgaging.com/


Birdsall Tool & Gage 248-474-5150 / www.birdsalltool.com/ Broadteq


248-794-9323 / www.broadteq.com/ Jenoptik


248-853-5888 / www.jenoptik.com/ EN_Industrielle_Messtechnik_Hommel- Etamic


Marposs


248-370-0404 / www.marposs.com/ Stotz


815-242-0027 / www.stotz-usa.com/ Universal Gage


310-644-0770 / universalgage.com/ Western Gage


805-445-1410 / www.westerngage.com/


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