What frequency measurement method is used in electronic measurement and instrument experiment?
Interference: to measure the surface roughness using the principle of light wave interference. The interferometer microscope is mainly used to measure the Rz value. The measuring range is Rz0.05~0.8 m. It is used for measuring the surface roughness and requiring high surface
Light cutting: optical measurement of surface roughness cutting principle for measuring instrument, optical microscope (dual microscope) the instrument is suitable for cars. Milling. The processing of metal plane or plane by the cylindrical surface of the main measuring Rz measurement range of Rz0.5~60 M
Comparison: measurement of surface roughness, plate for direct comparison, for Workshop Evaluation of surface roughness values than workpiece
Stitch: contact measurement of surface roughness. With instrument profilometer, the instrument displays the Ra value directly. It is suitable for measuring Ra value 0.025~6.3 mu m
India: touch the actual measurement in deep hole hole groove of thread can use direct measurement instrument can be used in surface printing printing using a flow of touch touch elastic plastic materials (Paraffin) fit the measured surface surface contour copying model measurement of surface roughness measurement impression
