Surface roughness tester, surface roughness tester, surface roughness detector, roughness measuring instrument, roughness, roughness tester and other names, the first foreign R & D and production was introduced before the domestic.
For Pan Wai
When the surface roughness of the workpiece is measured, the sensor is placed on the measured surface of the workpiece. The internal drive mechanism drives the sensor along the measured surface to do constant speed glide. The sensor senses roughness of the measured surface through the built-in sharp stylus. The workpiece surface roughness caused by the displacement of the stylus, the displacement of the sensor inductance coil inductance change, resulting in the output phase-sensitive rectifier with the measured surface roughness proportional to the analog signal, The signal is amplified and level-shifted into the data acquisition system.