一、引言近十几年来,在要求校准的性质和范围上,在所用的技术和设备上,在对校准振动测量设备重要性的了解上,都发生了明显的变化。这期间小型传感器得到了很快的发展,几乎满足了所有振动、冲 I. INTRODUCTION In the past decade or so, significant changes have taken place in the nature and extent of calibration requirements, in the techniques and equipment used, and in the understanding of the importance of calibrating vibration measurement equipment. During this period small sensors have been rapid development, almost all the vibration to meet the red