用圆度仪可以迅速准确地测量出被测件的不圆度误差。但这种仪器数量少、价钱贵,对环境要求又很严格,一般工厂在短期内不可能有这种仪器。利用光学分度头测量不圆度要多次对线(等分圆周),也比较麻烦,有些工厂又没有这些设备,使用简易不圆度测量装置虽然精度稍差,但比较适用。现介绍如下: With the roundness meter can quickly and accurately measure the measured object roundness error. However, the small number of such instruments, the price is expensive, the environmental requirements are very strict, the general factory in the short term can not have such equipment. It is also troublesome to measure the out-of-roundness by the optical indexing head repeatedly (equally divided circle), and some factories do not have these equipments. The simple non-roundness measurement device is suitable for less precision. Now introduced as follows: