Over the years, the portable hardness testers have improved. Though it finds amid a controversy due to different perspectives, there’s no apparent need for undermining the efficacy of portable hardness testers.
As facts would have it, the use of device probe (ball, cone, or pyramid) helps in testing the hardness and performances have comparatively increased. Each test piece differs for variables like material hardness properties, elastic properties, behavior, etc. Therefore, a proper correlation should be established with a bench-top tester.
A modern ultrasonic hardness tester equips LCD, microscopic indentation, higher calibration efficiency, and lots more. Widely used for measuring the hardness of test pieces like flange edges, sheets, molds, turbine rotor, wheel, shaft hardness, etc., the portable hardness tester produces accurate results.
Coming to the point of accuracy again depends on the handling unit. Expert users can determine the right values using the right hardness tester and there are certainly some specific test pieces that can be operated upon using this device only. After evaluating all variables, testing personnel can determine if the hardness tester or method is affected.
Unfair comparisons about portable Rockwell tester with that of bench-top testers had been made time and again, yet results proved otherwise. As standard would have been set, the personnel can automatically determine the efficiency and accuracy level of a portable hardness tester equipment.
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