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Acoustic emission (AE) sensors detect ultrasonic sound waves emitted when the grinding wheel contacts a part or the dressing wheel and send that information to a process control unit. Monitoring the sound waves and comparing them with reference values allows operators to control the grinding and dressing processes. Variations in acoustic emissions indicate changes in cutting forces, which can then be modified. Some AE sensors are stationary while others rotate with the wheels. Electronic filters reduce or eliminate acoustic emissions from other nearby devices, such as bearings.

3D optical metrology

Focus Variation, the technique behind Alicona's Infinite Focus 3D optical metrology system, has enabled EDM Department, Bartlett, Ill., to measure and see what it is making down to 1.7µm tolerances. Watch this brief report to see the system in action and learn about how EDM Department implemented the system.

BX53M System Microscope and Stream Analysis Software

Said to combine ease of use with expanded functionality, the new BX53M System Microscope from Olympus Scientific Solutions Americas is designed to make it easy for users to quickly and accurately undertake a variety of analytical tasks, the company announced in a Jan. 26 news release. What's more, when combined with new Olympus Stream 2.1 Image Analysis Software, the BX53M System Microscope reportedly simplifies workflow from observation to measurement, analysis and reporting.

MCV-500H and MCV-5000H Laser System

Optodyne Inc., Rancho Dominguez, Calif., a maker of laser measurement, calibration and compensation systems, recently introduced a new and improved laser calibration system—the MCV-500H and MCV-5000H. The MCV-500H and MCV-5000H laser calibration system is a basic system for linear displacement measurement, the company said in a news release issued Dec. 17, 2015.