The Study of Unitive Temperature Correcting Equation for Pressure—Measuring Copper Cylinders

摘要

In this paper, authors briefly analyzed reasons that the variation of working environment temperature will cause measurement error when pressure-measuring copper cylinders are used to measure dynamic pressure. To study the temperature error law of copper cylinders, Authors conducted for three batches of Φ3.5x8.75 copper cylinders; analyzed the variation law of pressure-measuring at high and low temperature based on the quasi-dynamic data; clarified the significance of deriving unitive temperature correcting formula for pressure-measuring copper cylinders, discussed the means of forming the unitive temperature correcting formula and derived the correcting formula by means of regression analysis .The feasibility of this equation has been tested and its result is satisfactory.