| 摘要 |
PROBLEM TO BE SOLVED: To provide a portable instrument for measuring airtightness performance superior in portability, capable of measuring nondestructively airtightness performance of a completed existing measurement objective chamber, and capable of freely measuring various regions in the chamber. SOLUTION: This portable airtightness performance measuring instrument is provided with the portable chamber 4, attached to the measuring objective portion 2 in the existing measuring objective chamber via a sealing member 3 and facing the measuring objective portion to form a measuring space V; a portable air pump 6 connected to a pipe 5 attached airtightly to the chamber to change pressure P1 in the measuring space; a portable differential pressure gage 8 connected to a pressure introducing pipe 7 for the measuring space attached airtightly to the chamber to detect and output a differential pressure value between the introduced pressure in the measuring space and pressure P2 in the measuring objective chamber; and a portable computer 9 connected to the differential pressure gage, and for calculating and displaying the airtightness performance of the measuring objective portion in a real time, using the differential pressure value that is input from the differential pressure guage. COPYRIGHT: (C)2006,JPO&NCIPI
|
