低速转速表的制作

Manufacture of Low Speed Tachometer

应用数字集成电路自己动手制作数字转速表 ,取代目前热处理、镀锌等生产线人工测速的落后方式。数字显示转速表读数 ,测量精度高 ,工作可靠 ,安装制作容易。从事电子技术的电工。

To replace backward method of manual measuring speed at present in heat treatment and Zn plating by applying digital integrated circuit to manufacture digital tachometer by oneself The tachometer shows rotational speed in digit with high measure precision,which is reliable in working and easy in fitting and making Electricians and instrument repairing workers engaging in electrical technology can make it according to circuit map