| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for speedily and accurately measuring the remaining quantity of nitrogen in nitrogen containers. <P>SOLUTION: One type of method for measuring the remaining quantity of nitrogen in nitrogen containers is a method for measuring the remaining quantity of nitrogen in nitrogen containers, prior to replacement. In the method, after the entire quantity of nitrogen in each of a nitrogen container and nitrogen consumption is read, the remaining quantity of useable nitrogen is computed on the basis of a nitrogen remaining quantity computational expression. When the nitrogen container is to be filled with nitrogen or replaced, the number of times of use of the nitrogen container, the entire quantity of nitrogen in the nitrogen container, and the nitrogen consumption are read sequentially, and then the remaining quantity of useable nitrogen is computed on the basis of the nitrogen remaining quantity computational expression. <P>COPYRIGHT: (C)2007,JPO&INPIT |
