Pressure

[jdahl]

Hi,

Anyone got any experience with pressure and integrated components. Does the produsers make sure the components don't contain small air pockets so it won't implode, or do I have to pressure test everything.

The datasheet for this hall sensor doesn't say anything about this condisions.

Anyone got experience with this?

why? I want to up it underwater, 50 bar. Will it survive?

Johannes

 

[Leftyretro]

Hi,

Anyone got any experience with pressure and integrated components. Does the produsers make sure the components don't contain small air pockets so it won't implode, or do I have to pressure test everything.

The datasheet for this hall sensor doesn't say anything about this condisions.

Anyone got experience with this?

why? I want to up it underwater, 50 bar. Will it survive?

Johannes

I would be very surprised if the IC packaging was rated to handle 50 bars of pressure, but only a call the manufacture will confirm that.

Lefty

 

[Mikebits]

Your link for the pdf is not any good, it is corrupt.

Isn't 50 Bar like 1600 feet. Crush depth for many things, but I think an IC might handle it.

 

[Leftyretro]

Your link for the pdf is not any good, it is corrupt.

Worked for me, and I tried again after reading your post.

 

[ericgibbs]

Your link for the pdf is not any good, it is corrupt.

hi Mike,
Just download the pdf, A OK.?

 

[Mikebits]

When I try to DL, I get a unable to open warning. Hmm, maybe I need to update.

 

[Mikebits]

This is the message I get.

 

[Leftyretro]

When I try to DL, I get a unable to open warning. Hmm, maybe I need to update.

Try right clicking on the link and save as option. It might just be your browers not feeling well tonight

 

[ericgibbs]

This is the message I get.

hi,
Are using IE or Firefox.

I use the Foxit pdf Reader.

 

[jdahl]

I just talked to the manufacturers, it had never been tried, but the material will absorb some water so it's not sutible for long term use. But for a short amount or time, it will do the job.

 

[Boncuk]

Hi jdahl,

you might try this: cast the entire circuit in water clear epoxy. It is absolutely water tight, and small air enclosures shouldn't matter at 50 bar. Small pressure tanks with a maximum pressure of 300 bar (~4,800psi) and a volume of max 3 liters are allowed for use without x-raying the welding spots. So I guess 50 bar is a pretty low pressure value compared to that.

The lesser the air enclosures in the epoxy the more will be the usable depth. If there is nothing to compress (gases) the depth is unlimited.

Hans