Patent ID: 11927504
Assignee: ZHENGZHOU TOBACCO RESEARCH INSTITUTE OF CNTC
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 1:
2. The non-destructive determination method of a cigarette packet's seal according to claim 1, wherein:
a testing device used in the non-destructive determination method of a cigarette packet's seal comprises: a pressure regulating valve (2), a vacuum generator (3), a balance cabin (6), a pressure gauge (7), and an airtight chamber (9), a cigarette packet (10), a differential pressure sensor (11) and a computer (12);
one end of the vacuum generator (3) is connected with the pressure regulating valve (2), and the other end is connected with a muffler (4);
the pressure regulating valve (2) is connected to an air supply (1); and
the vacuum generator (3) is sequentially connected to a first shut-off valve (5), the balance cabin (6), the pressure gauge (7), a second shut-off valve (8), the airtight chamber (9), the cigarette packet (10), the differential pressure sensor (11) and the computer (12).