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Marposs Introduces Air Gage Interface Box for Data Acquisition

The Duo Air can be supplied with one or two analog air-to-electronics converters with adjustable sensitivity and zeroing nozzles for connecting to one or two gauges.

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Marposs, a leader in measurement, inspection and test technologies, announces its new Duo Air interface box for easy and economical management of a wide range of air gauges. The Duo Air can be supplied with either one or two analog air-to-electronics converters with adjustable sensitivity and zeroing nozzles for connecting to one or two gauges. Each converter provides a linear variable differential transformer (LVDT) output signal for easy association to the Marposs’ Duo electronic display unit, offering a compact and affordable solution for measurement applications. Duo Air is said to be ideal for measurements with small tolerances requiring high resolution of 0.1 µm.

Air gage
Photo Credit: Marposs Corp.

According to Marposs, the Duo Air is accurate, robust and versatile, with the ability to accept air gauges from other manufacturers. Both Marposs and non-Marposs air gauges can be easily and immediately connected to Duo Air, with consideration to the following parameters:

  • Air supply pressure (3 bar ± 0.1)
  • Number of air gauge jets
  • Diameter of air gauge jets
  • “Mid-range gap”; the difference between the mid-tolerance diameter of the part to be measured and the distance between the air gauge jets

In a typical application, the Duo Air reportedly offers linearity of < 0.4% of the working range, repeatability of < 0.15 µm, noise of <0.1µm, resolution of 0.01 µm and a response time of 200 milliseconds.

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