How to Communicate Underwater With Robotic Fish.

[chemelec]

I Doubt the Audio would work.
The Pressure on the Reciever at 300m deep would seriously Limit its Reception.

 

[ramuna]

chemelec said: I Doubt the Audio would work.
The Pressure on the Reciever at 300m deep would seriously Limit its Reception.

Hi,
Have a look at: https://en.wikipedia.org/wiki/SOSUS and https://en.wikipedia.org/wiki/SOFAR_channel
As regards VLF radio communication with submerged objects, read: https://en.wikipedia.org/wiki/Communication_with_submarines

 

[amol.gulhane07]

Hey all, Thanks for your replies...Really I appreciate your help...

But CAn somebody just point me to where I can Buy one??

 

[JimB]

Try googling "underwater ultrasonic transducers", lots of hits.

JimB

 

[Misterbenn]

I just did exactly the same as Jim B. Google gives the following:

**broken link removed**

 

[JimB]

Misterbenn

I noticed that one, but there is one glaring omission from the specifications, the water depth rating.

JimB

 

[ramuna]

Hi,
Try Boston Dynamics:
https://www.dailymail.co.uk/science...erwater-drones-arsenal-robots-based-fish.html

 

[dr pepper]

Nige's suggestion might be worth trying with a twist.

A ferrite loopstick aerial from an am pocket radio works in the magnetic domain, if your transmitter also uses a tuned loop you might get better results underwater, sort of a similar thing that potholers use.

This is out of my comfort zone, but what about a scalar wave transmitter?