多参数新型智能变送器的设计

主要介绍了多参数传感器芯体的概念、原理及结构特点，介绍了美国TI公司最新推出的24位高精度低功耗微处理器MSC1211Y5，给出了在多参数智能变送器硬件设计中MSC1211Y5和多参数传感器接口电路，小信号处理中针对各种噪声和干扰采取的模拟滤波和数字滤波，HARD通讯过程中数据传输波形示意图，智能变送器软件设计中用高级语言编制的采样程序举例以及对小信号处理时绘制刷线路板方面的注意事项。

Design of New Multi-parameter Smart Transmitter

Descibe the conception?principle and construction of multi-parammeter sensor,introduces 24-bit precision low power microprocessor MSC1211Y5 from texas instrument.It gives the interface circuit of MSC1211Y5 and multi-parammeter sensor.When the signal is very small,it is necessary for digital filtering and analog filtering for restraining noise and disturbance,gives the figure of transmitting data in HART and example of the software programming,as well as presents the notes of printing the circuits.