piezo sensor

I am currently developing a low noise preamp for a new piezo sensor that should be used as a hydrophone. Since I am actually from the signal processing domain the topic was quite hard to get into for me. The sensor is relatively new and not well characterized. The only specifications I have are...

I am working on a project that has this piezo sensor I want to know how I can solder wire to it 1)What kind of wire do I need to use 2)Do I need to place any contact points on the piezo disc (contact are metal plate placed on some piezo) 3)What is the redial and normal resonating frequency in...