An underwater, multispectral light source - Revision history

imported>Projects221: /* Methods */

2015-03-20T03:38:13Z

Methods

← Older revision		Revision as of 03:38, 20 March 2015
Line 122:		Line 122:
	The final assembly after sealing into the waterproof housing:		The final assembly after sealing into the waterproof housing:

	[[File:DSCN0048.JPG\|\|\|300px]] [[~~FileDSCN0049~~.JPG\|\|\|300px]]		[[File:DSCN0048.JPG\|\|\|300px]] [[File:DSCN0049.JPG\|\|\|300px]]

	== Results ==		== Results ==

imported>Projects221: /* Methods */

2015-03-20T03:37:12Z

Methods

← Older revision		Revision as of 03:37, 20 March 2015
Line 116:		Line 116:
	[[File:pcb_gopro.png]][[File:pcb_fab1.jpg]][[File:pcb_fab2.jpg]]		[[File:pcb_gopro.png]][[File:pcb_fab1.jpg]][[File:pcb_fab2.jpg]]

	~~Snapshot~~ of the ~~final~~ assembly is shown below:		Snapshots of the parts of the assembly are shown below:

	[[File:Asembly.png]]		[[File:Asembly.png]]

			The final assembly after sealing into the waterproof housing:

			[[File:DSCN0048.JPG\|\|\|300px]] [[FileDSCN0049.JPG\|\|\|300px]]

	== Results ==		== Results ==

imported>Projects221: /* Conclusions */

2015-03-20T03:29:23Z

Conclusions

← Older revision		Revision as of 03:29, 20 March 2015
Line 135:		Line 135:
	== Conclusions ==		== Conclusions ==
	An LED system for multispectral imaging was designed, built and tested successfully. This design is currently in prototype stage of development, and there is still much to be done. Some potential directions of future development of this system are:		An LED system for multispectral imaging was designed, built and tested successfully. This design is currently in prototype stage of development, and there is still much to be done. Some potential directions of future development of this system are:

	1. Making the system more robust.		1. Making the system more robust.

	2. Testing the performance of our system with LEDs at higher brightness setting.		2. Testing the performance of our system with LEDs at higher brightness setting.

	3. Using higher power density batteries.		3. Using higher power density batteries.

	4. Using a lensing system to focus the light.		4. Using a lensing system to focus the light.
	5. Modifying the switch to a method that doesn't also switch things on the GoPro camera
			5. Modifying the switch to a method that doesn't also switch things on the GoPro camera.

	6. Synchronizing the GoPro shutter release with the LEDs.		6. Synchronizing the GoPro shutter release with the LEDs.

	7. 3D printing a new underwater housing that would be less space constrained.		7. 3D printing a new underwater housing that would be less space constrained.

imported>Projects221: /* Conclusions */

2015-03-20T03:28:53Z

Conclusions

← Older revision		Revision as of 03:28, 20 March 2015
Line 139:		Line 139:
	3. Using higher power density batteries.		3. Using higher power density batteries.
	4. Using a lensing system to focus the light.		4. Using a lensing system to focus the light.
	5. Modifying the switch to a ~~more standardized low profile~~ switch ~~model.~~		5. Modifying the switch to a method that doesn't also switch things on the GoPro camera
	6. Synchronizing the GoPro shutter release with the LEDs.		6. Synchronizing the GoPro shutter release with the LEDs.
			7. 3D printing a new underwater housing that would be less space constrained.

	== References ==		== References ==

imported>Projects221: /* Results */

2015-03-20T03:27:14Z

Results

← Older revision		Revision as of 03:27, 20 March 2015
Line 125:		Line 125:
	[[File:DSCN0054.JPG\|\|\|300px]] [[File:DSCN0050.JPG\|\|\|300px]]		[[File:DSCN0054.JPG\|\|\|300px]] [[File:DSCN0050.JPG\|\|\|300px]]

	The tank was filled with water 15 cm deep, and the Macbeth color checker was held down using rocks. Rulers were placed along the edges of the tank to ensure that the camera returned to the same position each time an image was taken (it was necessary to move the camera each time because switching the LEDs caused the camera to go into a menu, which it was necessary to look at the front-facing screen to get out of and return to image capture mode.) The camera was placed at the top of the water, with the LEDs and lens just submerged. All of the images were taken in a dark room.		The tank was filled with water 15 cm deep, and the Macbeth color checker was held down using rocks. Rulers were placed along the edges of the tank to ensure that the camera returned to the same position each time an image was taken (it was necessary to move the camera each time because switching the LEDs caused the camera to go into a menu, which it was necessary to look at the front-facing screen to get out of and return to image capture mode.) The camera was placed at the top of the water, with the LEDs and lens just submerged. All of the images were taken in a dark room. Experiments were run with about 350 mA drive current in an effort to preserve the battery lifetime.

	The resulting images are shown below for two different runs of the experiment.		The resulting images are shown below for two different runs of the experiment.

imported>Projects221: /* Results */

2015-03-20T03:25:39Z

Results

← Older revision		Revision as of 03:25, 20 March 2015
Line 128:		Line 128:

	The resulting images are shown below for two different runs of the experiment.		The resulting images are shown below for two different runs of the experiment.
	[[File:~~Secondexperiment~~.JPG]]		[[File:Firstexperiment.JPG]]
	[[File:Secondexperiment.JPG]]		[[File:Secondexperiment.JPG]]

imported>Projects221: /* Results */

2015-03-20T03:23:33Z

Results

← Older revision		Revision as of 03:23, 20 March 2015
Line 123:		Line 123:
	The system was tested after completion by capturing images of the Macbeth color checker. The experimental setup is shown below.		The system was tested after completion by capturing images of the Macbeth color checker. The experimental setup is shown below.

	[[File:DSCN0054.JPG]] [[File:DSCN0050.JPG]]		[[File:DSCN0054.JPG\|\|\|300px]] [[File:DSCN0050.JPG\|\|\|300px]]

	The tank was filled with water 15 cm deep, and the Macbeth color checker was held down using rocks. Rulers were placed along the edges of the tank to ensure that the camera returned to the same position each time an image was taken (it was necessary to move the camera each time because switching the LEDs caused the camera to go into a menu, which it was necessary to look at the front-facing screen to get out of and return to image capture mode.) The camera was placed at the top of the water, with the LEDs and lens just submerged. All of the images were taken in a dark room.		The tank was filled with water 15 cm deep, and the Macbeth color checker was held down using rocks. Rulers were placed along the edges of the tank to ensure that the camera returned to the same position each time an image was taken (it was necessary to move the camera each time because switching the LEDs caused the camera to go into a menu, which it was necessary to look at the front-facing screen to get out of and return to image capture mode.) The camera was placed at the top of the water, with the LEDs and lens just submerged. All of the images were taken in a dark room.

imported>Projects221: /* Results */

2015-03-20T03:22:59Z

Results

← Older revision		Revision as of 03:22, 20 March 2015
Line 123:		Line 123:
	The system was tested after completion by capturing images of the Macbeth color checker. The experimental setup is shown below.		The system was tested after completion by capturing images of the Macbeth color checker. The experimental setup is shown below.

	[[File:DSCN0054.~~jpg~~]] [[File:DSCN0050.~~jpg~~]		[[File:DSCN0054.JPG]] [[File:DSCN0050.JPG]]

	The tank was filled with water 15 cm deep, and the Macbeth color checker was held down using rocks. Rulers were placed along the edges of the tank to ensure that the camera returned to the same position each time an image was taken (it was necessary to move the camera each time because switching the LEDs caused the camera to go into a menu, which it was necessary to look at the front-facing screen to get out of and return to image capture mode.) The camera was placed at the top of the water, with the LEDs and lens just submerged. All of the images were taken in a dark room.		The tank was filled with water 15 cm deep, and the Macbeth color checker was held down using rocks. Rulers were placed along the edges of the tank to ensure that the camera returned to the same position each time an image was taken (it was necessary to move the camera each time because switching the LEDs caused the camera to go into a menu, which it was necessary to look at the front-facing screen to get out of and return to image capture mode.) The camera was placed at the top of the water, with the LEDs and lens just submerged. All of the images were taken in a dark room.

	The resulting images are shown below for two different runs of the experiment.		The resulting images are shown below for two different runs of the experiment.
	[[File:~~Firstexperiment~~.~~jpg~~]]		[[File:Secondexperiment.JPG]]
	[[File:Secondexperiment.~~jpg~~]]		[[File:Secondexperiment.JPG]]

	In the first run there was more inconsistency in the camera location because the ruler guides weren't used. In the second experimental run, ruler guides were used to help with consistency, but luminance levels were lower due to the battery beginning to run out.		In the first run there was more inconsistency in the camera location because the ruler guides weren't used. In the second experimental run, ruler guides were used to help with consistency, but luminance levels were lower due to the battery beginning to run out.

imported>Projects221: /* Results */

2015-03-20T03:20:49Z

Results

← Older revision		Revision as of 03:20, 20 March 2015
Line 128:		Line 128:

	The resulting images are shown below for two different runs of the experiment.		The resulting images are shown below for two different runs of the experiment.
	[[File:~~firstexperiment~~.jpg]]		[[File:Firstexperiment.jpg]]
	[[File:~~secondexperiment~~.jpg]]		[[File:Secondexperiment.jpg]]

	In the first run there was more inconsistency in the camera location because the ruler guides weren't used. In the second experimental run, ruler guides were used to help with consistency, but luminance levels were lower due to the battery beginning to run out.		In the first run there was more inconsistency in the camera location because the ruler guides weren't used. In the second experimental run, ruler guides were used to help with consistency, but luminance levels were lower due to the battery beginning to run out.

imported>Projects221: /* Results */

2015-03-20T03:18:19Z

Results

← Older revision		Revision as of 03:18, 20 March 2015
Line 123:		Line 123:
	The system was tested after completion by capturing images of the Macbeth color checker. The experimental setup is shown below.		The system was tested after completion by capturing images of the Macbeth color checker. The experimental setup is shown below.

	[[DSCN0054.jpg]] [[DSCN0050.jpg]]		[[File:DSCN0054.jpg]] [[File:DSCN0050.jpg]

	The tank was filled with water 15 cm deep, and the Macbeth color checker was held down using rocks. Rulers were placed along the edges of the tank to ensure that the camera returned to the same position each time an image was taken (it was necessary to move the camera each time because switching the LEDs caused the camera to go into a menu, which it was necessary to look at the front-facing screen to get out of and return to image capture mode.) The camera was placed at the top of the water, with the LEDs and lens just submerged. All of the images were taken in a dark room.		The tank was filled with water 15 cm deep, and the Macbeth color checker was held down using rocks. Rulers were placed along the edges of the tank to ensure that the camera returned to the same position each time an image was taken (it was necessary to move the camera each time because switching the LEDs caused the camera to go into a menu, which it was necessary to look at the front-facing screen to get out of and return to image capture mode.) The camera was placed at the top of the water, with the LEDs and lens just submerged. All of the images were taken in a dark room.

	The resulting images are shown below.		The resulting images are shown below for two different runs of the experiment.
			[[File:firstexperiment.jpg]]
			[[File:secondexperiment.jpg]]

			In the first run there was more inconsistency in the camera location because the ruler guides weren't used. In the second experimental run, ruler guides were used to help with consistency, but luminance levels were lower due to the battery beginning to run out.

	== Conclusions ==		== Conclusions ==