PRESSURE GAGE, LEAKAGE QUANTITY MEASURING METHOD USING THIS PRESSURE GAGE, LEAKAGE JUDGING METHOD USING THE GAGE, AND RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a pressure gauge capable of accurately judging leakage and capable of highly accurately measuring a leakage quantity, a leakage quantity measuring method and a leakage judging method using this pressure gage and a recording medium.;SOLUTION: This pressure gage mainly comprises a pressure measuring part 101 for measuring pressure in gas piping, a compressor supply quantity calculating part 111 for calculating a gas quantity supplied to the gas piping from a compressor by using a calculating expression and a pressure value measured by the pressure measuring part 101, a piping volume/leakage quantity calculating part 115 for calculating the piping volume of the gas piping and a gas quantity leaking from the gas piping from the pressure value measured by the pressure measuring part 101 and a calculating expression using a Boyle-Charles' law and a leakage speed calculating part 117 for calculating a leakage speed of gas by using a calculating expression of setting a calculating leakage quantity as a variable to judge a leakage state from the gas piping on the basis of a gas leakage speed calculating by the leakage speed calculating part 117.;COPYRIGHT: (C)2001,JPO