Breaking News
Comments
Newest First | Oldest First | Threaded View
Badger5149
User Rank
Rookie
re: Microelectronic sensing system enables in-flight arrow ballistics measurement
Badger5149   3/29/2014 9:37:15 PM
NO RATINGS
  Very excited to see this, As a fligth shooter I have a very specific interest in the velocity of the arrow throughout its flight. Is there anyway I can talk to you about this? Steve Gardner

BicycleBill
User Rank
Rookie
re: Microelectronic sensing system enables in-flight arrow ballistics measurement
BicycleBill   5/3/2012 3:52:15 PM
NO RATINGS
Can you do a case-study on either one of your designs? My site FAQ tells you what we are looking for: http://www.eetimes.com/ContentEETimes/Documents/Schweber/FAQSept2010.pdf or email me: bill.schweber@ubm.com

StevenHunter
User Rank
Rookie
re: Microelectronic sensing system enables in-flight arrow ballistics measurement
StevenHunter   5/3/2012 2:34:13 PM
NO RATINGS
I have made two arrow based systems. One was launched by a bow. It was a video camera and radio transmitter. The resulting video clearly shows the sky, the horizon, and then the rapidly approaching ground. Single stepping through shows blades of grass just before impact. The other system was a three-axis accelerometer designed to be lowered into very small diameter wells. I needed some high strength, small-diameter precision tubing. Being an archer, I realized than an arrow shaft would be cheap and perfect. Instead of paying $200 a foot for precision tubing, I could get a dozen arrow shafts for $50 (although our procurement department questioned what appeared to be non-work related items). Arrow shafts are 100,000 PSI tensile strength aluminum and are incredibly straight and uniform in wall thickness.

gayatrikumar_1
User Rank
Rookie
re: Microelectronic sensing system enables in-flight arrow ballistics measurement
gayatrikumar_1   5/2/2012 9:25:59 PM
NO RATINGS
TI has released some FRAM based MSPs which are fast and could retain memory in the absence of power. I feel that they are suitable to improve this kind of applications. Are there any limitations to use them here ?



Flash Poll
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Engineer's Bookshelf
Caleb Kraft

The Martian: A Delightful Exploration of Math, Mars & Feces
Caleb Kraft
3 comments
To say that Andy Weir's The Martian is an exploration of math, Mars, and feces is a slight simplification. I doubt that the author would have any complaints, though.

The Engineering Life - Around the Web
Caleb Kraft

Surprise TOQ Teardown at EELive!
Caleb Kraft
Post a comment
This year, for EELive! I had a little surprise that I was quite eager to share. Qualcom had given us a TOQ smart watch in order to award someone a prize. We were given complete freedom to ...

Design Contests & Competitions
Caleb Kraft

Join The Balancing Act With April's Caption Contest
Caleb Kraft
54 comments
Sometimes it can feel like you're really performing in the big tent when presenting your hardware. This month's caption contest exemplifies this wonderfully.

Engineering Investigations
Caleb Kraft

Frankenstein's Fix: The Winners Announced!
Caleb Kraft
8 comments
The Frankenstein's Fix contest for the Tektronix Scope has finally officially come to an end. We had an incredibly amusing live chat earlier today to announce the winners. However, we ...

Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)