"JJF 1105-2018 Stylus Surface Roughometer Calibrate Specification" is applicable to the calibrating work of Stylus Surface Roughometer. This specification refers to a series of national standards related to surface structure profile method, including terms, definitions, evaluation methods and calibrate standards. Stylus Roughness Gauge is usually composed of Sensors, drivers, electronic signal processing devices, computers and printers. The working principle is to sense the geometric shape change of the measured surface through Sensors, convert it into electrical signals and process it, and finally output surface roughness parameters. Depending on the type of Sensor, it can be divided into Inductance, Piezoelectric, Photoelectric, Laser and Grating, etc. Guided Sensors are dedicated to asperity measurement, while Guided Sensors can additionally measure ripple and surface geometry.