User:Pranav Rathi/Notebook/OT/2010/10/31/Laser Shutter .1 - Revision history

Pranav Rathi at 19:22, 21 January 2013

2013-01-21T19:22:19Z

←Older revision		Revision as of 19:22, 21 January 2013
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	I have constructed a cost-effective mechanical laser shutter system for our 1064 IR-laser. System contains a mechanical shutter, a control box and a power supply. There are many shutter systems available commercially; mechanical, semi-mechanical, electromagnetic and optical. Most of the systems are expensive and above $1000. These systems are fast (msecs to micro secs) and precise. In our case we needed a shutter which is precise and cost effective but not that fast. So here it is. Another shutter i designed to be precise, cost-effective and very fast; here is the link;[http://openwetware.org/wiki/User:Pranav_Rathi/Notebook/OT/2011/03/01/Laser_Shutter_.2]. Some of the specifications of the system:		I have constructed a cost-effective mechanical laser shutter system for our 1064 IR-laser. System contains a mechanical shutter, a control box and a power supply. There are many shutter systems available commercially; mechanical, semi-mechanical, electromagnetic and optical. Most of the systems are expensive and above $1000. These systems are fast (msecs to micro secs) and precise. In our case we needed a shutter which is precise and cost effective but not that fast. So here it is. Another shutter i designed to be precise, cost-effective and very fast; here is the link;[http://openwetware.org/wiki/User:Pranav_Rathi/Notebook/OT/2011/03/01/Laser_Shutter_.2]. Some of the specifications of the system:
	*Type mechanical with electronic control. Can also be controlled by a micro controller.		*Type mechanical with electronic control. Can also be controlled by a micro controller.

Pranav Rathi at 20:47, 15 November 2012

2012-11-15T20:47:28Z

←Older revision		Revision as of 20:47, 15 November 2012
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	[[Image:Power supply.jpg]]		[[Image:Power supply.jpg]]
	[[Image:Mounted shutter.jpg]]		[[Image:Mounted shutter.jpg]]
-	~~[[Category:Optical Tweezer]]~~	+

	=Comments=		=Comments=

Pranav Rathi: /* Comments */

2011-08-08T22:16:50Z

Comments

←Older revision		Revision as of 22:16, 8 August 2011
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	*The shutter is fairly simple and the way it is developed, it really does not need any electronics; shutter, +3V power supply, 2 pole switch and a push button is enough. If the optical setup does not need the shutter to operate several times during the experiment, than this is the best scheme. The usage of electronics makes it easy and safe for the shutter to be used several times during the experiment, that’s why I used the electronics.		*The shutter is fairly simple and the way it is developed, it really does not need any electronics; shutter, +3V power supply, 2 pole switch and a push button is enough. If the optical setup does not need the shutter to operate several times during the experiment, than this is the best scheme. The usage of electronics makes it easy and safe for the shutter to be used several times during the experiment, that’s why I used the electronics.
	*Microcontroller[http://www.robotshop.com/ProductInfo.aspx?pc=rb-ard-03] is a better alternate available for electronics. It is easy to use and it is programmable. A shutter, microcontroller, +5V power supply, 5V relay, push button and a 100 Ohm POT can make a reliable shutter system. This system won’t need any flip/flop switch because the pulse generation and polarization all will be done by the microcontroller; at first push it generates a pulse moves motor clockwise and second push it generates a pulse of opposite polarization moves the motor C clockwise.		*Microcontroller[http://www.robotshop.com/ProductInfo.aspx?pc=rb-ard-03] is a better alternate available for electronics. It is easy to use and it is programmable. A shutter, microcontroller, +5V power supply, 5V relay, push button and a 100 Ohm POT can make a reliable shutter system. This system won’t need any flip/flop switch because the pulse generation and polarization all will be done by the microcontroller; at first push it generates a pulse moves motor clockwise and second push it generates a pulse of opposite polarization moves the motor C clockwise.
		+	[[Category:Construction of Optical Tweezers and devices]]

Pranav Rathi at 20:05, 4 March 2011

2011-03-04T20:05:07Z

←Older revision		Revision as of 20:05, 4 March 2011
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-	I have constructed a cost-effective mechanical laser shutter system for our 1064 IR-laser. System contains a mechanical shutter, a control box and a power supply. There are many shutter systems available commercially; mechanical, semi-mechanical, electromagnetic and optical. Most of the systems are expensive and above $1000. These systems are fast (msecs to micro secs) and precise. In our case we needed a shutter which is precise and cost effective but not that fast. So here it is. Another shutter i designed to be precise, cost-effective and very fast; here is the link;[http://openwetware.org/~~index.php?title=~~User:Pranav_Rathi/Notebook/OT/2011/03/01/Laser_Shutter_.2~~&action=edit&redlink=1~~]. Some of the specifications of the system:	+	I have constructed a cost-effective mechanical laser shutter system for our 1064 IR-laser. System contains a mechanical shutter, a control box and a power supply. There are many shutter systems available commercially; mechanical, semi-mechanical, electromagnetic and optical. Most of the systems are expensive and above $1000. These systems are fast (msecs to micro secs) and precise. In our case we needed a shutter which is precise and cost effective but not that fast. So here it is. Another shutter i designed to be precise, cost-effective and very fast; here is the link;[http://openwetware.org/wiki/User:Pranav_Rathi/Notebook/OT/2011/03/01/Laser_Shutter_.2]. Some of the specifications of the system:
	*Type mechanical with electronic control. Can also be controlled by a micro controller.		*Type mechanical with electronic control. Can also be controlled by a micro controller.
	*Aperture 10mm.		*Aperture 10mm.

Pranav Rathi at 04:39, 2 March 2011

2011-03-02T04:39:33Z

←Older revision		Revision as of 04:39, 2 March 2011
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-	I have constructed a cost-effective mechanical laser shutter system for our 1064 IR-laser. System contains a mechanical shutter, a control box and a power supply. There are many shutter systems available commercially; mechanical, semi-mechanical, electromagnetic and optical. Most of the systems are expensive and above $1000. These systems are fast (msecs to micro secs) and precise. In our case we needed a shutter which is precise and cost effective but not that fast. So here it is. Some of the specifications of the system:	+	I have constructed a cost-effective mechanical laser shutter system for our 1064 IR-laser. System contains a mechanical shutter, a control box and a power supply. There are many shutter systems available commercially; mechanical, semi-mechanical, electromagnetic and optical. Most of the systems are expensive and above $1000. These systems are fast (msecs to micro secs) and precise. In our case we needed a shutter which is precise and cost effective but not that fast. So here it is. Another shutter i designed to be precise, cost-effective and very fast; here is the link;[http://openwetware.org/index.php?title=User:Pranav_Rathi/Notebook/OT/2011/03/01/Laser_Shutter_.2&action=edit&redlink=1]. Some of the specifications of the system:
	*Type mechanical with electronic control. Can also be controlled by a micro controller.		*Type mechanical with electronic control. Can also be controlled by a micro controller.
	*Aperture 10mm.		*Aperture 10mm.

Pranav Rathi: /* Comments */

2010-11-02T01:39:06Z

Comments

←Older revision		Revision as of 01:39, 2 November 2010
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	[[Category:Optical Tweezer]]		[[Category:Optical Tweezer]]

-	==Comments==	+	=Comments=
	*The shutter is fairly simple and the way it is developed, it really does not need any electronics; shutter, +3V power supply, 2 pole switch and a push button is enough. If the optical setup does not need the shutter to operate several times during the experiment, than this is the best scheme. The usage of electronics makes it easy and safe for the shutter to be used several times during the experiment, that’s why I used the electronics.		*The shutter is fairly simple and the way it is developed, it really does not need any electronics; shutter, +3V power supply, 2 pole switch and a push button is enough. If the optical setup does not need the shutter to operate several times during the experiment, than this is the best scheme. The usage of electronics makes it easy and safe for the shutter to be used several times during the experiment, that’s why I used the electronics.
	*Microcontroller[http://www.robotshop.com/ProductInfo.aspx?pc=rb-ard-03] is a better alternate available for electronics. It is easy to use and it is programmable. A shutter, microcontroller, +5V power supply, 5V relay, push button and a 100 Ohm POT can make a reliable shutter system. This system won’t need any flip/flop switch because the pulse generation and polarization all will be done by the microcontroller; at first push it generates a pulse moves motor clockwise and second push it generates a pulse of opposite polarization moves the motor C clockwise.		*Microcontroller[http://www.robotshop.com/ProductInfo.aspx?pc=rb-ard-03] is a better alternate available for electronics. It is easy to use and it is programmable. A shutter, microcontroller, +5V power supply, 5V relay, push button and a 100 Ohm POT can make a reliable shutter system. This system won’t need any flip/flop switch because the pulse generation and polarization all will be done by the microcontroller; at first push it generates a pulse moves motor clockwise and second push it generates a pulse of opposite polarization moves the motor C clockwise.

Pranav Rathi: /* Power Supply */

2010-11-02T01:36:25Z

Power Supply

←Older revision		Revision as of 01:36, 2 November 2010
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	I used Tiger Pro Model: TP-300 computer power supply. Any power supply can be used for this operation.		I used Tiger Pro Model: TP-300 computer power supply. Any power supply can be used for this operation.
	For wire color coding consult [http://en.wikipedia.org/wiki/Power_supply_unit_(computer)]		For wire color coding consult [http://en.wikipedia.org/wiki/Power_supply_unit_(computer)]
		+
	[[Image:Shutter.jpg]]		[[Image:Shutter.jpg]]
	[[Image:Control Box.jpg]]		[[Image:Control Box.jpg]]
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	[[Image:Mounted shutter.jpg]]		[[Image:Mounted shutter.jpg]]
	[[Category:Optical Tweezer]]		[[Category:Optical Tweezer]]
		+
		+	==Comments==
		+	*The shutter is fairly simple and the way it is developed, it really does not need any electronics; shutter, +3V power supply, 2 pole switch and a push button is enough. If the optical setup does not need the shutter to operate several times during the experiment, than this is the best scheme. The usage of electronics makes it easy and safe for the shutter to be used several times during the experiment, that’s why I used the electronics.
		+	*Microcontroller[http://www.robotshop.com/ProductInfo.aspx?pc=rb-ard-03] is a better alternate available for electronics. It is easy to use and it is programmable. A shutter, microcontroller, +5V power supply, 5V relay, push button and a 100 Ohm POT can make a reliable shutter system. This system won’t need any flip/flop switch because the pulse generation and polarization all will be done by the microcontroller; at first push it generates a pulse moves motor clockwise and second push it generates a pulse of opposite polarization moves the motor C clockwise.

Pranav Rathi: /* Power Supply */

2010-11-02T00:05:29Z

Power Supply

←Older revision		Revision as of 00:05, 2 November 2010
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	[[Image:Power supply.jpg]]		[[Image:Power supply.jpg]]
	[[Image:Mounted shutter.jpg]]		[[Image:Mounted shutter.jpg]]
		+	[[Category:Optical Tweezer]]

Pranav Rathi: /* Shutter */

2010-11-02T00:00:02Z

Shutter

←Older revision		Revision as of 00:00, 2 November 2010
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	==Construction==		==Construction==
	===Shutter===		===Shutter===
-	I made the shutter system inside the spray box. First I removed the electronics which controls the motor. Then I made two holes to install the cage rods directly on the box’s skin, these rods support the cage holder at the gearbox level roughly 5 cm away from it. I used a plastic stick to connect the gear-arm with the shutter (inside the holder), so the shutter moves in and out with arm as motor rotates ten full rotations. I also installed two touch sensors at the ends of the shutter, so they can sense when the shutter is fully open or closed. I made these sensors by carving two sets of conduction strips. When the shutter travels to the end it pushes on strip into another. Once the strips are connected the current flows so the touch sensor works as an on/off switch. I ran totally 5 wires into the shutter 2 for the motor, 3 for the touch sensors out of 1 is common and 1 of each wire is for red and yellow LEDs. Red LED shines when shutter is fully open and yellow LED shines when the shutter is fully closed. I made ¼ inche hole to install the post directly on the skin, so the box can be directly installed on the optical table with the post holder.	+	I made the shutter system inside the spray box. First I removed the electronics which controls the motor. Then I made two holes to install the cage rods directly on the box’s skin, these rods support the cage holder at the gearbox level roughly 5 cm away from it. I used a plastic stick to connect the gear-arm with the shutter (inside the holder), so the shutter moves in and out with arm as motor rotates ten full rotations. I also installed two touch sensors at the ends of the shutter, so they can sense when the shutter is fully open or closed. I made these sensors by carving two sets of conduction strips and directly installed them directly on the skin and then solder wires into them. When the shutter travels to the end it pushes on strip into another. Once the strips are connected the current flows so the touch sensor works as an on/off switch and senses the edge of the shutter. I ran totally 5 wires into the shutter 2 for the motor, 3 for the touch sensors out of 1 is common and 1 of each wire is for red and yellow LEDs. Red LED shines when shutter is fully open and yellow LED shines when the shutter is fully closed. I made ¼ inche hole to install the post directly on the skin, so the box can be directly installed on the optical table with the post holder.

	===Control Box===		===Control Box===

Pranav Rathi: /* Shutter */

2010-11-01T23:45:05Z

Shutter

←Older revision		Revision as of 23:45, 1 November 2010
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	The components used:		The components used:
	===Shutter===		===Shutter===
-	*Glade automatic air spray: Air spray uses a motor and gearbox to mechanically operate the spray bottle.	+	*Glade automatic air spray: Air spray uses a motor and gearbox to mechanically operate the spray bottle, which i used to move shutter.
-	*Thorlab Cage System Removable Filter Holders CFH1: To make shutter holder.	+	*Thorlab Cage System Removable Filter Holders CFH1: To make shutter holder and shutter.
	*Two 3 inches cage assembly rods: To install the shutter holder on the skin of air spray.		*Two 3 inches cage assembly rods: To install the shutter holder on the skin of air spray.
	*Black aluminum foil: To make the shutter.		*Black aluminum foil: To make the shutter.
		+
	===Control Box===		===Control Box===
	*2 3-pole on/off switch		*2 3-pole on/off switch