频率计

The development of an equal precision frequency and phase meter based on FPGA is introduced in this paper, mainly about the design of hardware and software. The Design mainly includes three modules: counting module, calculating module and displaying module. The number of period of a signal is counted by counting module, data from counting module is computed by calculating module, and finally the result from calculating module is showed by displaying module.

本文介绍了基于FPGA的等精度频率与相位计的设计，包括硬件和软件设计，设计主要分为三个模块：计数模块、计算模块和显示模块，计数模块对被测信号周期数进行计数，计算模块对信号处理模块输出的数据进行计算，最后计算结果由显示模块显示。

Factory Taicang with cars, milling, grinding, and other mechanical processing equipment, welding and other processing and cooling capacity, there is electronic measurement device, the transistor characteristics Miriam icon, TB-3 frequency characteristics tester, electronic potentiometer UJ-37 , standard resistance box and other equipment.

太仓仪表厂具有车、铣、磨、等机械加工设备，冷却加工和焊接等生产能力，有电子测量仪、晶体管特性图示仪、TB-3频率特性测试仪、电子电位差计UJ-37，标准电阻箱等设备。

He and Nina moved to California and lived at 2005 Ivar Street, Apt.

他和Nina搬到加州，并在2005年伊瓦尔街，公寓生活。

Droperidol （ potently inhibits transfected HERGchannels and this is the probable mechanism for QT prolongation.

氟哌利多有效地抑制了转染的 HERG 钾通道，可能是 QT 间期延长的机制。