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[PSUBS-MAILIST] Preasure Gauge



I'm looking to make myself some sort of preasure gauge so I can calculate depth, but the best Idea I can come up with is to embed a Preasure sensor in a ball of silicon and mount it to the outside of my preasure hull, I'm thinking that the silicon will transfer preasure to the sensor evenly as well as protect it from water damage. The biggest problem with that would be the wires coming out of the silicon ball causing rippage if any stress was put on them, thus allowing water in however minute amount to get to the sensor, so I'd have to make some sort of cradle for it so it can't move... maybe epoxy it onto a machine brass craddle that can be mounted to the preasure hull which I can then run the wires through so I can connect the Preasure sensor to the MC this way I can avoid loose wires. Another problem is would the silicon transfer the preasure so I could get an accurate reading.
 
Am I over thinking this, is there some simple solution I'm over looking?
 
Illustration of what I'm talking about at http://www.captovis.com/marine/designsketches/preasuresensorandcradle.png Kind of small and all, but I stick my doodles in that directory so I can reffer to them later. Kind of like a "design written on a napkin" repository.
 
Thanks
George H. Slaterpryce III