In high precision digital m easurem ent of power electrical parameters,the synchronous error is one of the main factors that cause measuring errors while sam pling period adjustment is an im portant m eans of reducing synchronous errors.

• 在电力参数微机高精度测量中 ,同步误差是导致测量误差的主要因素之一 ,而采样周期校正是减小同步误差的重要手段。