KARPEN PILE

[profitis]

Pomodoro,you don't even have to short a sealed device to rid it of O2 traces.self-discharge of H2+O2 happens at surfaces of both catalysts spontaneously and completely within 2days.the problem is it causes massive vaccuum if too much air was in there,then that punctures a leak in the device.

[MarkE]

True @mark E.but you'd need to see that the pressure is maintained in order to know that pressure is maintained.a valve on the gadget1 gas exhaust pipe is one way to do this.

Or a pressure sensor should do.  A small fraction of a PSI over ambient should cover things.  There are lots of very nice analog and digital pressure sensors around that cover gauge pressures well below 1 PSI.  A simple voltage limit alarm can be devised easily enough to trip and hold an alarm if the gauge pressure gets too low.

[pomodoro]

Overnight experiment did not give positive results. After shorting out all night, the cell voltage sluggishly crawled to 192 mv after one hour and stayed there. Discharge was weak. So another gadget has been constructed. This is similar to gadget 1 but has a lower volume and can be evacuated. Currently it has been evacuated till the water boiled, filled with hydrogen with a slight pressure and is now shorted out.

[profitis]

Or he could just lead the exhaust pipe under beaker water of a fixed level and slowly bubble out,one at a time..

[profitis]

Pomodoro,how much H2 was visible in the overnight test.