A Profilometer Based On The Z_direction Scanning Of Displacement

Contact-type surface measurement is the most widely used of engineering measurements. Traditional inductance - contact gauges in measuring the scope and power measurement accuracy and measurement between contradictions exist, with the expansion of the scope of measurements, with the final measurement for statistical power gradually increased, and errors easily hurt working surface deformation, worn with needles, impact measurement accuracy. With measuring range expansion inductance displacement sensors deviate from the linear region near the equilibrium point will affect the accuracy of measurements. Meanwhile lever in the process because of statistical measurements of the surface and around fulcrum-ups, resulting in the direction of micro-displacement X,Z error also caused her measurements and theoretical contours of the original contours of the inconsistency. In actual engineering applications, many of her important work surfaces are limited to the surface, the toroidal surface features on the use of performance has a very important role. To toroidal surface externalities should not only measure surface roughness measurements, but also measurements of the surface contours and face error The contours device should also have high-precision and large measuring range. To this end, and a large range, high-precision, small outline integrated measurements of the surface detectors are very necessary.The main content and research work is as follows: in the analysis of the traditional contact-type gauges inductance shortcomings, the proposed based on the vertical displacement scanning the surface contours of the integrated gauges the overall programme, which outlines device changed her previous vertical direction and not moving to touch needles along her on the surface mobile, through leverage institutions through the displacement of sensors to electrical signal inductance reflect ideas, used to maintain a balance lever location for working with the vertical direction from mobile platforms, the use of placement in the vertical direction of the work platform diffraction raster interference displacement sensors were to be measured, effective avoid the traditional gauges of the state. Measurement principles expounded equipment, system component modules discussed gauges in the design and realization of methods. Interference in the principles of diffraction raster to Z measurement principles to workstations, raster interference signal processing and workstations positioning done analysis on the levels.Applications virtual instrumentation technology to C++Builder6.0 platform for the development, preparation of the contours on the surface parameters assessed applications, given the contours of a curved surface of the two-dimensional images of the error curve. On spherical lenses, Cylinder lenses, bearings and outside roll Road, drum-rolling sports piece of camber measurements of the certification process feasibility.