The Investigation Of An High Accuracy Temperature Transducer Base On HART Protocol

This article presents a detailed research in the design, development filed bus based intelligent transducer and the realization of hardware. Presents a general introduction to the field bus and intelligent instrument, and here we also select a correct communication protocol appropriate of field bus. It presents a collective introduction to the HART communication protocol, including feature, working principal, structure, etc, which we use in the transducer. It gives the functional-block plan of the intelligent transducefTand it gives programs of communication. And plots a design of the hardware by the circuit design software, Protel99. Finally, it introduces an application of intelligent transducer base on HART communication protocol.Qi Bin(Control Engineering)Directed by prof. Tian Pei...