Application of voice coil motor in modern hard core scratch tester. If not in the relevant industry or related jobs done, should be relatively unfamiliar with the scratch instrument equipment. 

     The scratch tester is a device used to define the bond strength between the coating film and the substrate and the scratch resistance of the film, the main application scenarios include semiconductor technology (passivation layer, metal plating, Bond Pads) , optical components (contact lens, optical fiber, optical scratch protective layer) , storage materials (magnetic disk protective layer, magnetic coating on disk substrate, CD protective layer) , anti-wear coating (TiN, TiC, DLC, cutting tools) , pharmacology (tablet, implant material, biological tissue) , engineering (paint coating, rubber, touch screen, MEMS) , etc. . 

     Thus, scratch instrument is a precision instrument, and speaking of scratch instrument, voice coil motor in which a series of practical applications. The scratch instrument is mainly composed of a scratch device and a measuring device. The scratch device is composed of a scratch needle with a carbide tip and a force applying device. The constant force exerted by the scratch needle through the force applying device, the measuring device is a 20-fold reading microscope with additional illumination, through which the width of the scratches of the tested sample can be read out. The voice coil motor is introduced into the force device, driving the needle for reciprocating uniform motion. 

    Kunshan's self produced high performance voice coil motor has already been used in the scratch machine, which has been searched by 360 search engine, you can see a video of the application of the Tongmao voice coil motor in the constant force scratch machine.                                                                                  

     The article was originally written by www.tmmotion.com in Kunshan, China. Please quote the source.