摘要
根据目前微观性测量单元MIMU中硅微机械陀螺仪和加速度计的主要技术性能及A/D转换技术的现状,提出了基于高集成度、低功耗和6通道16位逐次逼近型ADC的电压输出实时数据采集系统。介绍了为提高系统应用性能而采取的技术措施,并通过实际测试证实了这些措施的必要性和有效性。实验表明,此数据采集系统测出的零位稳定性和标度因数等性能指标与用Agilent六位半34401A数字万用表测出的结果一致,满足设计要求。
In accordance with the main technical performance of the silicon micro mechanical gyroscope and accelerometer in micro inertial measure unit{ MIMU } , and current status of A/D conversion technology, the real-time data acquisition system based on ADC for the voltage outputs of three of the gyroscopes and accelerometers in MIMU is proposed. ADC is a highly integrated 6-channel, 16-bit A/D converter with low power consumption and high integration. Specific measures used in the design for enhancing applicable performance of the system are em- phasized. In practical tests, the necessity and effectiveness of these measures are verified. The experiments show that the zero stability and scale factors measured bv this data acauisition svstem are consistent with the results from Agilent 34401A 6 1/2 dizit muhimeter.
出处
《自动化仪表》
CAS
北大核心
2011年第2期69-73,77,共6页
Process Automation Instrumentation
基金
南京理工大学自主科研专项计划基金资助项目(编号:ZDJH02)
关键词
微观性测量单元
微机电系统
硅微陀螺仪
硅微加速度计
数据采集系统
Micro inertial measure unit （MIMU） Micro-electro-mechanical system（MEMS） Silicon micro gyroscope Silicon accelerometerData acquisition system （ DAS }
