2005年Nios 软核心嵌入式处理器设计大赛Nios II Embedded Processor Design Contest―Outstanding Designs 2005 Third Prize Portable Vibration Spectrum Analyzer Institution: Institute of PLA Armored Force Engineering Participants: Zhang Xinxi, Song Zhuzhen, and Yao Zongzhong Instructor: Xu Jun and Wang Xinzhong Design Introduction We designed a portable vibration spectrum analyzer based on the Altera Nios II soft core processor and FPGA. The instrument is used in fault monitoring and diagnosis of rotary machines, which are used in battle tanks, armored cars, and vehicle engines. The operation of these vehicles may be affected by abnormal vibrations for different reasons, including serious accidents that may lower fighting strength and productivity. To solve the vibration diagnostics problem, we……