Process: Make Joint-type transducer starting 2013-03-15 ending 2013-03-15

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Outputs

Scheduled:

Prototype Material - Joint-type transducer 1.00 Each due March 15, 2013

Work

Planned Work: (Requirements are ordered by due date)

Work - R&D optics: 3.00 Time - Hours due March 15, 2013

Francois, test this

Taken by Joint-type transducer
Work - R&D optics: 1.00 Time - Hours due March 15, 2013

I am working with Francois on the new Joint-type transducer, making prototypes for the following design:
Convex type https://docs.google.com/drawings/d/1KyzF-MpkvOXdisDqgH_yGBO9UF6DN-m7aoV9a-eRmFg/edit

The goal is to make a few transducers that will be used at Phil's lab for the Mosquito Scientific Instrument System.

The other day I observed how the curvature of the tip of the delivery fiber was affecting the exit angle of the light. It turns out that the angle starts to diminish when the fiber tip it melted a lot to make a large ball. The ball for smaller exit cone is larger than the diameter of the shrinking tube. The conclusion was that we need to have a small curvature, to avoid fabry perot, but the sensitivity will not improve a lot, because we cannot reduce the exit cone of the light. These tests were done with visible green light.

Today we'll connectorize the convex delivery fiber to a mirrored lever that was made the other day by Francois, and explore the performance of this transducer.

We are now testing different convex delivery joint-type for intensity variation with gap size. We see some strange behavior, an increase in intensity within 50 microns, with a pick in the middle, and after the intensity diminishes normally for the geometrical mode.

Taken by Tibi
Work events:
March 16, 2013 1.00 Time - Hours Done by Tibi

I am working with Francois on the new Joint-type transducer, making prototypes for the following design:
Convex type https://docs.google.com/drawings/d/1KyzF-MpkvOXdisDqgH_yGBO9UF6DN-m7aoV9a-eRmFg/edit

The goal is to make a few transducers that will be used at Phil's lab for the Mosquito Scientific Instrument System.

The other day I observed how the curvature of the tip of the delivery fiber was affecting the exit angle of the light. It turns out that the angle starts to diminish when the fiber tip it melted a lot to make a large ball. The ball for smaller exit cone is larger than the diameter of the shrinking tube. The conclusion was that we need to have a small curvature, to avoid fabry perot, but the sensitivity will not improve a lot, because we cannot reduce the exit cone of the light. These tests were done with visible green light.

Today we'll connectorize the convex delivery fiber to a mirrored lever that was made the other day by Francois, and explore the performance of this transducer.

We are now testing different convex delivery joint-type for intensity variation with gap size. We see some strange behavior, an increase in intensity within 50 microns, with a pick in the middle, and after the intensity diminishes normally for the geometrical mode.

March 15, 2013 1.00 Time - Hours Done by Tibi

I am working with Francois on the new Joint-type transducer, making prototypes for the following design:
Convex type https://docs.google.com/drawings/d/1KyzF-MpkvOXdisDqgH_yGBO9UF6DN-m7aoV9a-eRmFg/edit

The goal is to make a few transducers that will be used at Phil's lab for the Mosquito Scientific Instrument System.

The other day I observed how the curvature of the tip of the delivery fiber was affecting the exit angle of the light. It turns out that the angle starts to diminish when the fiber tip it melted a lot to make a large ball. The ball for smaller exit cone is larger than the diameter of the shrinking tube. The conclusion was that we need to have a small curvature, to avoid fabry perot, but the sensitivity will not improve a lot, because we cannot reduce the exit cone of the light. These tests were done with visible green light.

Today we'll connectorize the convex delivery fiber to a mirrored lever that was made the other day by Francois, and explore the performance of this transducer.

We are now testing different convex delivery joint-type for intensity variation with gap size. We see some strange behavior, an increase in intensity within 50 microns, with a pick in the middle, and after the intensity diminishes normally for the geometrical mode.

Consumable Inputs

Prototype Material - Joint-type transducer: 1.00 Each due March 15, 2013
Onhand: Joint-type transducer glass fiber ~ 18.00 Each ~ Location: Sensorica Main Lab ~ Custodian: SENSORICA ~ Trainer: Francois ~ Trainer: Tibi
Onhand: PDMS Joint-type transducer for 1mm PMMA fiber ~ 3.00 Each ~ Location: SENSORICA Robotics lab ~ Custodian: SENSORICA ~ Manager: Christopher D ~ Manager: Tibi
Equipment - Optical fiber splicer: 1.00 Time - Hours due March 15, 2013

We are using this Fiber Splicer to create the convex delivery fiber tip, by melting the glass fiber

Onhand: Field Fiber Splicer ~ 2.00 Each ~ Location: Sensorica Main Lab ~ Custodian: SENSORICA ~ Manager: Tibi
Prototype Material - Mosquito LD (laser) sensor : 1.00 Time - Hours due March 15, 2013

We are using this Mosquito Demo to characterize the transducer.

Onhand: Prototype - Mosquito PD-LD - Demo ~ 1.00 Each
Onhand: Prototype - Mosquito V3 Chinese parts ~ 1.00 Each ~ Location: Phillipe's Lab ~ Custodian: SENSORICA ~ Manager: Tibi ~ Manager: Jonathan

Usable Inputs

Equipment - Power supply: 1.00 Time - Hours due March 15, 2013

The GQ power supply is used to power the Fiber Splicer, which in turn is used to melt the tip of the glass fiber

Onhand: Hantek power supply USB 1.00 Each
Onhand: Power supply GQ 1.00 Each
Onhand: POWER SUPPLY WALL 24V 1A 3.00 Each

Process context:

Pattern: Generic R&D
Context: Joint-type transducer

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