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The MERMEC Inc. EZ-Grind system now has an option to add a non-contact corrugation measurement along with the rail profile measurement. The two systems are integrated to provide one common output. The corrugation measurement is made by utilizing high-precision axle-mounted accelerometers coupled with high-speed digital signal processing. The output channels can be tailored to meet the end-user requirements by selecting from a wide range of bandwidths and signal types — including discrete, peak-sampled, RMS and corrugation index data values. The corrugation information can be output on the same screen with the profile information. When space is at a premium on a grinder, this is a compact, simple and cost-effective solution to the profile and corrugation measurement requirements, the company says.