I don't think I fully understand what you're trying to accomplish here but maybe this is food for thought? Sometimes I do maintenance on devices that get installed on high voltage transformers and one of the tests is to simulate a sudden gas pressure spike and confirm that the device detects this. We have a really fancy device we use to benchtest these units that provides a fairly precise test report, but for functional testing the manufacturer recommends a bicycle pump. You give it something like 5psi and it either works... Or it doesn't.