Digital display involute gear measures teaching aid

The utility model provides a digital display involute gear measures teaching aid for matching gear can not make up at will when solving gear measurement, artifical reading error is great or erroneousreading's problem. The utility model discloses place platform, other end installation baffle at linear guide one end installation fixed gear, the slip gear is placed the platform slip and is established on linear guide, and capacitive gate transducer fixed grid is fixed to be established on linear guide, bench installation knurled nut, display screen, capacitive gate transducer moving gate are placed to the slip gear. The utility model discloses utilize capacitive gate transducer to change the mechanical displacement volume into the characteristics that signal of telecommunication phase changemeasured, measuring experimental data in will testing to digital form appears through the display screen is directly perceived, has advantages such as measuring error is little, convenient to use, inaddition, the slip gear pl