| 释义 |
track and hold unit
跟踪保持器
A functional unit whose output analog variable is equal to either the input analog variable or a sample of this variable selected by the action of an external Boolean signal. When tracking, the device follows the input analog variable; when holding, the device holds the value of the input analog variable at the instant of switching.
一种功能部件［操作装置］，其输出模拟变量等于输入模拟 变量，或者等于在外部布尔信号作用下所选出的该输入变量的采样值。在跟踪时，该设备 跟随输入模拟变量的变化；保持时，它保持输入模拟变量在转换瞬时的值不变。同trackand store unit。 |