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1 前言 近年来,由于数字技术的发展,计算机技术的广泛应用,要求信息的测量和分析向数字化、计算机化方向发展。特别是数字技术具有精度高,逻辑性强,利于高度集成等特点,为数字式磁记录方法的应用提供了可靠的保证。数字式磁记录方法不仅具有模拟式记录方法的优点,而且可以充分运用各种先进的数字技术,克服模拟记录方法的缺陷,使记录的信息受磁带机械抖动的影响最小,记录信息更准确可靠,并能直接与计算机相联进行数据的
1 Introduction In recent years, due to the development of digital technology, the widespread application of computer technology requires the measurement and analysis of information to be digitized and computerized. In particular, digital technology has the characteristics of high precision, strong logic and high integration, which provides a reliable guarantee for the application of digital magnetic recording method. The digital magnetic recording method not only has the advantages of analog recording method, but also can make full use of various advanced digital techniques to overcome the shortcoming of analog recording method, minimize the influence of mechanical jitter on the recorded information, record the information more accurately and reliably, And can be directly linked with the computer for data