A Virtual Instrument of Temperature Measurement for LPG Cylinder Incinerato

摘要

This paper develops an virtual instrument (VI) for measuring the variation of temperature during LPG (Liquefied Petroleum Gas) cylinder incinerator based on LabVIEW platform. This VI consists of hardware and software. The former includes thermocouples, an ADC based on PCI bus, and an industrial PC; while the latter consists of an algorithm for temperature measurement and the corresponding program. Based on the LabVIEW platform, an measurement system including filter compensation, data monitoring, and data storage has been established. The accuracy and feasibility of the VI has been verified by the field experiments. Compared with the traditional temperature measuring instrument, the VI are more appropriate for temperature measurement of the LPG cylinder incinerator, especially its flexibility and counter-measures to improve the measurement accuracy.