#Repost#catamountgiveaway@blackcreeklaboratories with @get_repost
The 12th of March is coming quickly. Follow us and repost for a chance to win.
As part of our new product launch in March, Black Creek Laboratories is giving away a BCL 102 Catamount rifle. We will be putting together an “Arctic Catamount” in 7.62N / 308, with an 18.5” barrel, finished in Cerakote white for our booth at the IWA Outdoor show in Germany. We will be giving this rifle away on the last day of the show, 12 March 2008. Pictures and specs will be available prior to the show and posted on Instagram. See the prize at IWA Germany in hall 9 booth 236.
1. Follow @blackcreeklaboratories
2. like this post
3. Repost with #catamountgiveaway
Terms and Conditions
-Starts on 4 Feb 2018
-Ends on 11 March 2018 at 1800 EST
-Winner announced on 12 March 2018
-Open to US, Canada, EU residents
-giveaway is subject to the firearm export laws of Canada. BCL reserves the right to substitute the prize when export of the firearm to the winner is not possible or at any other time for any other reason without notice.
-No entry fee or purchase required
-Only one entry will be accepted per person
-BCL will notify the winner within 48 hours of the contest ending via Instagram.
-Winner will be decided by a random choice through using an automated generator.
-The winner agrees to have his/her name used in the marketing campaign and personal details will need to be collected to transfer the prize.
-By entering this contest, an entrant is bound by these terms
-This contest is in no way sponsored or associated with Instagram
1 16:13 PM Feb 24, 2018
I was going to dig this up again but there's an unforseen problem.
It's a fibre-optic displacement sensor. Two 0.5mm plastic fibers are glued in the middle of a bolt to hold them, and the ends polished with a little jig. An LED shines light down one fiber, it comes out, reflects off the surface being measured, goes back into the other fiber, and is detected with a photodiode. The amount of light reflected depends strongly on the distance between the surface and the fiber tips. The graph is nonlinear overall, but there's two linear portions.
I'm using hypodermic needles as little terminations for the optical fiber - it's glued in then the whole thing polished flat.
I was interested in this because I wanted to directly measure the oscillation amplitude of my ultrasonic horn. Commercial units are hideously expensive (over £1000!). I'd reckon, with some work on an amplifier, stabilised light source etc, I could easily get down to 10nm resolution.
So I thought this might make a good product. Unfortunately, it turns out that there's a category in the dual-use goods list specifically covering non-contact displacement sensors with a resolution better than 200nm, and to sell that you need an export license! Plus a lot of bureaucratic shit, registration, certification etc.
So it's put a lid on that from a product point of view - I might still develop it for my own use with the ultrasonic horn, it that's about it. Bugger.
0 06:11 PM Feb 24, 2018
GPPA's Michael Bahr presenting on precision ag at the Kansas Society of Farm Managers and Rural Appraisers winter meeting. Always learning. Always growing. #GPPA#PrecisionAg