Miller F C, Mueller E, Velick K
Obstet Gynecol. 1980 Mar;55(3):388-91. doi: 10.1097/00006250-198003000-00026.
An on-line, automated system, voltage-controlled oscillator (VCO), with digital print-out of uterine activity units (UAU) at designated intervals, has been used in clinical studies and appears reliable. A comparison was made between the VCO system and a microprocessor-controlled digital integrator system (MCDI), which displays UAUs as a bar graph every 10 minutes on the uterine activity channel of the clinical fetal monitor.
一种在线自动系统——压控振荡器（VCO），能按指定间隔以数字形式打印出子宫活动单位（UAU），已用于临床研究且似乎很可靠。对VCO系统和微处理器控制的数字积分器系统（MCDI）进行了比较，MCDI在临床胎儿监护仪的子宫活动通道上每10分钟以条形图形式显示UAU。
