Why not use a simple contact closure. On one side of an oil filled diaphragm you could have foil. You could also have foil on the bottom. If there is impact they will open and you have a signal. KISS.
sorry only got this message now. Do you know any company that sells oil filled diaphrams or something similar to your suggestion or a company that could make these? much appreciated belatedly! Luan Cuffe!
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