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现已证明由于成本太高,在测量通用机械及机床的直线性时,用市场上通用的激光干涉仪装置作为短移传感器是不适宜的。很多实验室及科研单位都希望用成本相对低而且精密的数字式测量装置。为了满足这个要求,美国标准局(NBS)承担了这项低成本测试装置的研
It has been shown that it is not appropriate to use commercially available laser interferometer devices as short-time transducers when measuring the linearity of general machinery and machine tools because of the high cost. Many laboratories and research institutes want to use relatively low-cost and sophisticated digital measuring devices. To meet this requirement, the United States Bureau of Standards (NBS) undertook this low-cost test device research