How to Achieve <1um Accuracy When Measuring Roller Gap Roller Gap Measurement with MTI Digital Accumeasure Capacitive Probes Many roll-to-roll finishing processes typically use a calender, or series of hard pressure rollers, to deliver smooth, high-quality products of plastic, textile, or paper (Fig 1). Ensuring a consistent material thickness, however, depends on the ability to monitor, and maintain, a precise gap between rollers. This application note describes a quick and easy means for roller gap measurement. Problem How to measure the small gap between rollers to keep track of product thickness. Typically, it’s not possible to [...]

By Gerald Allgaier, Systems Specialist and Bob Fitzgerald, Application Specialist - Vitrek For many measurements that require the capture and processing of analog data, data throughput speed and conversion resolution are the two most important considerations. Typical examples include Radar, Signals Intelligence (SIGINT), Ultrasound Imaging, Non- Destructive Testing (NDT), Mass Spectroscopy / Time-of-Flight (TOF), and Production Test. These test applications usually demand high speed data transfer rates. So typically, Digitizers (A/D) or Arbitrary Waveform Generators (D/A) residing on a high-speed backplane are required. These applications many times require 2, 4 or more conversion channels, [...]