UVEX3
Posted: Sat Jul 20, 2019 12:07 pm
Hi Guys,
In the best tradition of Louis Sullivan's maxim "form follows function", Christian's
UVEX3 is in there somewhere!
It's printed in PETG+C, fitted with the prescribed Thorlab optics using a spare 600 l/mm
grating and with an Alpy airslit disc. I'll change that to the standard Alpy slit later.
It was very straighforward to print and setup following Christian's instructions. A bit fiddly perhaps!
I've shown the UVEX3 inverted to better explain the add-ons.
There's a screw adjuster for the grating lever. It's quite coarse at the moment but better than
the lever on its own and I have a micrometer to add later.
I've added a guider (16mm mirror and 17mm diameter 30mm focal length lens (stopped to 12mm),
a guide image is attached using a DSI3 (the same chip as an Atik314L or SXVH9).
I've built a 'calibration unit' using an OAG with the prism reversed and adjusted so that the prism
sits central in the light cone when manually dropped into place. The power source is a miniture
circuit that can generate 600V+ from a 9V battery driving a halogen for flats and a "different"
Relco type bulb, picture attached. That attached plot is using the two bulbs with identical exposure times.
The bulb is a little larger than the 'standard' Relco and is Argon only.
The UVEX3 works very well on the bench but the weather here is miserable and I haven't been able to commission
the spectroscope yet.
(
Thank you for this spectroscope Christian.
Onwards and upwards!
Tony.
In the best tradition of Louis Sullivan's maxim "form follows function", Christian's
UVEX3 is in there somewhere!
It's printed in PETG+C, fitted with the prescribed Thorlab optics using a spare 600 l/mm
grating and with an Alpy airslit disc. I'll change that to the standard Alpy slit later.
It was very straighforward to print and setup following Christian's instructions. A bit fiddly perhaps!
I've shown the UVEX3 inverted to better explain the add-ons.
There's a screw adjuster for the grating lever. It's quite coarse at the moment but better than
the lever on its own and I have a micrometer to add later.
I've added a guider (16mm mirror and 17mm diameter 30mm focal length lens (stopped to 12mm),
a guide image is attached using a DSI3 (the same chip as an Atik314L or SXVH9).
I've built a 'calibration unit' using an OAG with the prism reversed and adjusted so that the prism
sits central in the light cone when manually dropped into place. The power source is a miniture
circuit that can generate 600V+ from a 9V battery driving a halogen for flats and a "different"
Relco type bulb, picture attached. That attached plot is using the two bulbs with identical exposure times.
The bulb is a little larger than the 'standard' Relco and is Argon only.
The UVEX3 works very well on the bench but the weather here is miserable and I haven't been able to commission
the spectroscope yet.
(Thank you for this spectroscope Christian.
Onwards and upwards!
Tony.
- The complete unit
- The 'large' relco bulb.
- Calibration plot
- BigRelco.jpg (145.69 KiB) Viewed 3833 times
- Guiderscale