| |
 |
| |
| Submertec specialises in custom building
underwater and harsh environment electronic equipment. The use
of computer aided design allows systems to be adapted or developed
to meet customers individual requirements while maintaining
competitive pricing and delivery times. |
|
 |
| |
|
|
 |
|
Many years of experience in the diving, manned
submersible and ROV industry are now utilised to ensure that
equipment is designed to perform in the most hostile environments
- above or below water
Development of systems
is from initial concept to final product and includes design
of electronic circuits, circuit board and electrical layout,
enclosure and pressure housing design, procurement of components,
final assembly and test.
|
| |
|
|
| Projects frequently start with an informal
discussion to establish the feasibility of the project and how
it would be best to proceed. If at this stage Submertec does
not feel able to help, then best advice on how to proceed will
be given and no charge made. All ideas discussed remain confidential.
If you have a requirement
for equipment that does not yet exist, but you know what you
need, then Submertec may be able to develop it for you.
The ability to accept custom design projects
and the timescale involved will depend on the current workload.
|
|
 |
| |
|
|
|
| |
| |
| Example 1 - Magnet
base Pan & Tilt Camera |
| |
|
|
| |
| The system was designed
for the remote monitoring and inspection of maintenance being carried
out in the interior of boilers and similar plant, enabling operating personnel
to monitor the processes from a remote safe area. New
pan and tilt cameras were designed to fit through a 130mm diameter access
hole, operate in spray or shallow water and attach magnetically to the
inside of the vessels.
Each unit is fully sealed against
water ingress and features a 10X zoom colour camera with LED illumination,
unlimited 360 degree pan and tilt from -10 deg to +100 degrees. Three
camera units can be connected to the Power Unit simultaneously and up
to two Control Units can be connected either in parallel or series to
give maximum flexibility and allow control locally or up to 200 metres
away if required.
|
| |
| |
| |
| |
| Example 2 - Drill
String Camera |
| |
 |
|
Requirement - To lower a monochrome video
camera and light down inside a 100mm ID drill string, underwater
to a depth of 300 metres to assist with location and re-entry
to a subsea guide base.
In consultation
with the customer, Submertec was able to put together a design
for the complete package including camera, light, deployment
frame, underwater cable and controller which was then manufactured
and supplied within two weeks of the inquiry.
Development time was reduced to a minimum
in this case due to the urgency of the project.
|
|
| |
| |
| |
| Example 3 - Deep
zoom Wellhead Camera |
| |
 |
|
Requirement - for an underwater video camera
with zoom lens for use on a subsea drilling rig to a depth of
1500 metres.
A new camera assembly
was designed and manufactured to incorporate a colour camera
(430 TVL and 3 lux) with remote control zoom lens (6.3 to 38mm)
and long line video amplifier into a stainless steel pressure
housing with wet mateable underwater connector. The finished
assembly was hydro pressure tested to 2250 metres before delivery.
|
|
| |
| |
| |
| Example 4 - Brushless
DC Thruster Unit for ROV |
| |
These thruster units
have been developed by Submertec Limited for an overseas customer to
provide a low maintenance, high power propulsion unit for use on underwater
vehicles to a depth of 500 metres.
The output propeller shaft is driven by an 850 watt brushless DC motor
which is located together with its electronic controller inside an oil
filled and pressure compensated stainless steel housing. |
| |
 |
|
A wet mateable underwater connector on the
side of the thruster makes installation or removal easy even in
adverse weather conditions.
No serviceable parts
are located within the housing and all maintenance, including
shaft seal changes, can be carried out without disturbing either
end cap seal.
|
|
| |
| Protection against
the following conditions have been included in the design:
1) Motor leads shorting together or to ground.
2) Over temperature of either the motor windings or the controller heatsink.
3) Supply voltage exceeding the design limitations.
4) Direction reversal while at high speed.
5) Overload due to fouled propeller.
6) Where possible, the controller will attempt to recover from the fault
and restart automatically
|
|
| |
