This paper describes the principle and application of correlation method in the absolute radioactivity measurement.
本文介绍用于放射性核素活度绝对测量的相关方法的基本原理、应用及其优点。
2
At present, the measurementof sluice gate opening usually USES the digital encoder. It has the advantage of high measuring precision and USES the absolute coding method which makes it widely used.
目前水库闸门开度测量通常使用的是数字编码器，它的测量精确度高且使用绝对编码技术，得到广泛的应用。
3
The instrument plays a very important role in the absolutemeasurementof laser wavelength. Principle and method of I...