Programmable hardware timing was used in design of microsecond synchronizer based on ISA bus, after pulse generated by oscillator was divided frequency, it was sent to 8254 to count.
基于IS A总线的微秒级同步器采用可编程硬件定时，由晶振发出脉冲经分频后送入8254计数。
2
Microsecond optical switch is observed and BR molecule distributing of different intermediate is analyzed when the exciting pulse is over.
观察到了微秒量级的快速光开关现象，并分析了激发光脉冲作用结束时，各中间态上细菌视紫红质分子的分布。
3
High precision time, outputting second pulse reach microsecond.