Abstract
The traditional measuring instrument of temperature mainly consists of different types of hardware, whose cost and scale are quite big, and whose operation is inconvenient. In many practical applications, describing the measured objects only by accurate values is not enough. Aiming at these problems, the design of sea temperature test system based on Virtual Instrument has been introduced in this paper. The temperature test system combines high performance PCI-6014 data acquisition card with sensor elements and amplifying circuit. On the basis of LabVIEW software platform, an application software for temperature measurement has been designed, whose functions include real-time acquisition of test signal, data processing and data display.
A virtual instrument consists of an industry-standard computer or workstation equipped with powerful application software, modularization hardware such as plug-in boards, and driver software, which can fulfill the functions of traditional instruments. The LabVIEW virtual instrument technology has been efficiently used to complete many important processes in common PC computer which is integrated of hardwares. So it makes the key point of the measurement move to software design. Temperature measurement by virtual instrument is a typical application of virtual instrument technology.
Keywords：Virtual Instrument；LabVIEW；Temperature test
