摘要
针对谐振式微机械加速度计输出数字频率信号的特点,基于TMS320VC5509A DSP处理核心与FPGA设计出一种可同时检测九路数字频率信号并具有较高精度的硬件单元,利用接入灵活、传输速率快的USB总线,结合SQLserver2000数据库构建起主要针对谐振式微机械加速度计的测试平台。主要阐述了前端频率测试方法、DSP应用系统设计及PC软件框架。整套系统对谐振式微加速度计产品的生产开发、质量检测有重要的现实意义。
According to the properties of the digital frequency signal which is yielded by the resonance-based micromachined accelerometer, based on the TMS320VC5509A processor and the FPGA, we designed a precise hardware unit which can detect 9 channels digital frequency signal at the same time. Furthermore, utilizing the flexible and fast USB bus, combining the data base SQL server 2000, we built a modular platform for measuring micromachined accelerometer. The focus is on front-end frequency testing methods, DSP System Design and Application of PC software framework. The entire system shows the practical value in the development and detection of the resonance-based micro-eccelerometer.
出处
《仪器仪表用户》
2008年第2期57-59,共3页
Instrumentation
关键词
微机械加速度计
数字频率测量
USB数据采集
micromachined accelerometer
digital frequency measuring
USB data acquisition
