PRODUCT LEAKAGE MEASURING DEVICE Russian patent published in 2013 - IPC G01M3/06 

FIELD: test equipment.

SUBSTANCE: device includes a bubble chamber with conducting liquid, a drain tube, a test chamber, a test gas source, which are connected with tubes and shutoff valves, a standard capacity, two shutoff valves, one regulated valve, two tubes connecting the standard capacity to the test gas source and to the inlet end of the drain tube, a bubble catcher, two electrodes, an electric power source, a comparator, a setting device for level of actuation voltage of the comparator, a double-throw switch, six electronic switches, a switchgear, a pulser, a calculator with four input memory registers, a pulse counter, two adders, two dividers, a trigger, two timers, four delay elements, three memory units, two comparison units, a pressure difference setting unit, a pressure sensor and a temperature sensor.

EFFECT: improving the accuracy of determination of low gas leaks of tested products.

1 dwg