Method and apparatus for inspecting an internal pressure of herm

Details Method and apparatus for inspecting an internal pressure of herm Method and apparatus for inspecting an internal pressure of herm

1978-03-13

1980-02-12

Myracle, Jerry W.

Measuring and testing

Testing sealed receptacle

364558, G01N 2900

Patent

active

041877187

ABSTRACT:
A method and apparatus for inspecting the internal pressure of hermetically sealed containers wherein a sound wave of free damped oscillation exicted at the elastic wall of a hermetically sealed container is converted and detected as an electrical signal, analysis is performed for natural self-correlation function of this detected signal by using logical operation circuits, and thus, the adequacy of the internal pressure is discriminated by measuring the period of such function.

REFERENCES:
patent: 3596502 (1971-08-01), Forry et al.
patent: 3802252 (1974-04-01), Hayward et al.

Affiliated with

Also associated with

Rating

Method and apparatus for inspecting an internal pressure of herm does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for inspecting an internal pressure of herm, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for inspecting an internal pressure of herm will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1849484