ABSTRACT
The computer is the core of modern measurement Technology. The system usually has two parts, one is called hardware that taking PC as core, including sensors, conditioners, I/O interface equipment. Another is called software. The lastest generation of instruments——Virtual Instrument is the representative form. Between a variety of I/O interface equipments, the data acquisition board is the most basic form in the modern measurement Technology.
The paper firstly introduced the virtual instrument concept, generation, the background and significance of the application, Research and development trends. The VI what was used developed by the company of NI in the USA——LabVIEW. Introduced the interface of the LabVIEW and basic methods of operation easily.The Structure that the system of the experimental used was “Sensor + Conditioning circuit +DAQ Card +Computer”, you will design a temperature measurement system in the LabVIEW.
The paper show that how to complete the step of the project, and Platinum RTD temperature measurement characteristics of the experimental procedure Model.
KEY WORD: virtual instrument, LabVIEW, temperature measurement, data acquisition, thermistor, thermocouple
