一種高可靠性的頻率測量系統

摘要：提出并研制了一種高可靠性、高精度、使用簡單且便于維護的頻率測量系統，該系統用于電力電子測量領域。其硬件系統以嵌入式PC104計算機為測控平臺，軟件系統以LabWindows/CVI為開發平臺，采用測周期法，依據頻率大小選用不同的基準頻率。經實際測試證實，該設計滿足精度和實時性的要求，檢測效率高，便于操作與維護。該系統亦可用于其他要求高精度頻率測量的領域中。 敘詞：頻率量測量 PC104 測周期法 Abstract：It proposes and develops a frequency measurement system with high reliability and accuracy which is simple to use, easy to maintain in the paper. Its used in the field of power electronics measurement. PC104 Embedded computer is used as the measuring and control platform in the hardware systems, and the software platform is based on the LabWindows/CVI platform. Its based on the cycle measurement method, choosing different reference frequency according to the values of the frequency. The practical test confirmed that the design meets the requirements of precision and real-time, and it is easy to operate and maintain with high efficiency. The system can also be used in other areas where high-precision frequency measurements is reauired. Keyword：Frequency measurement, PC104, Cycle measurement method