Search found 10 matches
- Feb 10th, 2012, 3:43 pm
- Forum: Frames, Hulls, & Bouyancy
- Topic: leak detection
- Replies: 6
- Views: 4693
Re: leak detection
http://makeprojects.com/Project/Water-Leak-Detector/1382/1 Forget the upper part ( the power supply ) and use the ROV power instead. Place electronics in controller and place a sensor in the ROV sensor can be 2 wires with ~ 1cm blank ends use some HMA (Hot melt adhesive) to secure on the ROV bottom
- Feb 10th, 2012, 3:17 pm
- Forum: Control Systems and Tethers
- Topic: Webcam/Sensor Input Over Tether
- Replies: 1
- Views: 1466
Re: Webcam/Sensor Input Over Tether
Ethernet ?
- Feb 8th, 2012, 4:35 am
- Forum: Manipulators & Tools
- Topic: Measuring tool
- Replies: 20
- Views: 24718
Re: Measuring tool
standard speed of light = c ( in a vacuum ) in air the speed of light is almost the same as in a vacuum ( = c / 1.0003 ) in water the speed of light is c / 1.333 most measuring tools are designed for working in air, so when use in water you have to recalculate the distance cool diy projects on a las...
- Feb 7th, 2012, 9:31 am
- Forum: Manipulators & Tools
- Topic: Measuring tool
- Replies: 20
- Views: 24718
Re: Measuring tool
If using a standard lasertool for measuring distances underwater you have to correct it, because the speed of light is not the same in the water as in air or vacuum.
The speed of light is a factor 1.333 slower through water @ 20 degree celcius then through a vacuum.
The speed of light is a factor 1.333 slower through water @ 20 degree celcius then through a vacuum.
- Feb 6th, 2012, 7:31 am
- Forum: Lighting
- Topic: Good Lighting
- Replies: 4
- Views: 4914
Re: Good Lighting
Seoul P7 Emitter http://www.led-tech.de/en/High-Power-LEDs-Seoul/-3.5W-Seoul-LEDs/Seoul-P7-Emitter-LT-1284_121_78.html + color temp is 6300 + output is 800 lumen viewing angle of 130° this is ok for navigation lighting, but is too much for video or photography for video or photography you can use a...
- Feb 6th, 2012, 6:47 am
- Forum: Lighting
- Topic: Good Lighting
- Replies: 4
- Views: 4914
Re: Good Lighting
http://www.uwphotographyguide.com/backscatter-underwater Place 2 lights left and right from the camera and use narrow beam lights so that particles in the water don't get illuminated. In the picture section A and B are the lights and in these lightbeams backscatter can occure. In section C there is...
- Feb 5th, 2012, 2:29 pm
- Forum: Cameras
- Topic: Shopping For Underwater Video Cameras
- Replies: 4
- Views: 3089
- Feb 5th, 2012, 7:33 am
- Forum: Lighting
- Topic: Good Lighting
- Replies: 4
- Views: 4914
Good Lighting
For good lighting you need the correct color and enough light. If you wanted to use LEDs the the color temp should be 6000 - 6500 K this is the same color temp as normal daylight. And you need lots of light so go for something like this http://www.ledssuperbright.com/30w-led-c-18/100w-white-high-pow...
- Feb 5th, 2012, 7:19 am
- Forum: Cameras
- Topic: Shopping For Underwater Video Cameras
- Replies: 4
- Views: 3089
Re: Shopping For Underwater Video Cameras
Or you can use a IP webcam or security camera.
f.i. this one http://panasonic.net/pss/security/produ ... index.html
f.i. this one http://panasonic.net/pss/security/produ ... index.html
- Feb 3rd, 2012, 6:12 pm
- Forum: Introductions
- Topic: Hi from the Netherlands
- Replies: 2
- Views: 1414
Hi from the Netherlands
Hi all my name is Wim aka Dratsabylgu.
New in the ROV world but planning to build my first ROV this year.
New in the ROV world but planning to build my first ROV this year.