Underwater data acquisition project

[seanski06]

I'm currently working on a project where I am required to measure the load that is applied to a chain, which is submersed in an underwater tank (approx. 20 feet). The entire assembly must be self contained and hermetically sealed for up to 6 months.

I've successfully sourced some good ip68 load cells and a datalogger, however I'm trying to figure out the best approach to enclosing a 24v power supply needed to power my sensors.

Does anyone have any experience working with electronics underwater? I can't seem to find much info on some good ip68 enclosures that will allow a cable port.

The most idealsolution would be a self contained 24v power supply that would consist of a box with two wires coming off of it.

Thanks for any help,
-Sean

 

[Okefenokee]

Someone around these parts may have a better answer for you but have you tried looking in a dive shop to see what they have? I know they have big underwater battery packs for things like flashlights. Maybe you could use one of those.

 

[stewartcs]

I'm currently working on a project where I am required to measure the load that is applied to a chain, which is submersed in an underwater tank (approx. 20 feet). The entire assembly must be self contained and hermetically sealed for up to 6 months.

I've successfully sourced some good ip68 load cells and a datalogger, however I'm trying to figure out the best approach to enclosing a 24v power supply needed to power my sensors.

Does anyone have any experience working with electronics underwater? I can't seem to find much info on some good ip68 enclosures that will allow a cable port.

The most idealsolution would be a self contained 24v power supply that would consist of a box with two wires coming off of it.

Thanks for any help,
-Sean

Sean,

http://www.odi.com/" make the connections you seek.

CS

 

[seanski06]

Okefenokee: Most of those underwater battery packs are way too large for my application

Stewartcs: thanks for the info about ODI, I've been looking into what Seacon had, having more options is always a good thing

I found a really neat lithium polymer 14.8v dc source IP68 all the way...Unfortunately, the company has not decided to make them, I guess their just gauging interest