A Simple Digital Acquisition System Design Based On MCU
Abstract
Data Acquisition System referred to DAS (Data Acquisition System), refers to the temperature, pressure, flow, displacement, such as simulation of a collection, quantitative converted into digital, so as to provide computer storage, processing, display or print device. Digital Acquisition System Acquisition System is the most common type, with the rapid development of SCM technology, the object through the MCU control has increasingly become an important future development direction. The key is to complete the design of specific signals (such as temperature, flow, etc.) simulation of the collection, processing and display. Design is based on the AT89C51 SCM to achieve a set of multi-parameter acquisition system. This system is mainly to complete the routine data collection function, the corresponding signal through sensors (such as temperature signal using temperature sensors), into the amplifier. After a weak signal amplification, and then after I / V transformation, A / D converter circuit into the SCM data processing. After dealing with the SCM, into the display system to display it. In the production process, the system can be applied to the production site of the parameters of the collection, monitoring and recording, to improve product quality, reduce costs to provide information and means. In scientific research and application of data acquisition system will be a lot of dynamic information, thereby becoming an instant physical processes on a powerful tool, is also exploring scientific mysteries of one of the important means.
