AUTOMATED TEST STAND FOR TESTING ARTICLES FOR TIGHTNESS Russian patent published in 2002 - IPC

FIELD: monitoring and testing technology. SUBSTANCE: test stand includes rotor made in form of swivel table with drive for step motion in adjusting mode to monitoring unit containing rejecting unit, throttling divider connected with compressed gas source and with one of chambers of comparison element, additional comparison element in form of double-bellows unit which is connected with additional rejecting unit, measuring unit and additional throttling divider connected with compressed gas source and with one of bellows. Pressure relay is connected with compressed gas source and is electrically connected with two distributing valves. Monitoring unit may be periodically connected to each testing unit by means of pneumatic connector. Process includes comparison of pressures in comparison chambers or in bellows of additional comparison element and loss of tightness of article is judged from their relationship. EFFECT: extended functional capabilities; ease in operation. 2 cl, 4 dwg