Feeds

PARIS pops down to QinetiQ

Vital hypobaric chamber test proves... interesting

  • alert
  • submit to reddit

Top three mobile application threats

Well, that worked a treat. As the pressure dropped, the plunger slid smoothly out, according to our prediction. In fact, it turned out we needed only 15cc of air for the thing to work, and a pressure sensor test on the syringe revealed that a pressure of just 8mm of mercury (official QinetiQ standard for these matters) was required to move the plunger.

So, we set up the syringe again in our initial test configuration, with 15cc of air, and took it up at 1,000 feet per minute.

Once again, nothing, at which point we realised what was going on: after the first failed test, we'd increased the rate of climb on subsequent runs to speed up the process.

In fact, a rate of climb of at least 2,000 feet per minute was required for the contraption to work - in excess of the predicted balloon ascent rate.

A further pressure sensor hook-up demonstrated that the pressure inside the syringe at 1,000 feet per minute was just 2mm of mercury, which indicated a leak. It appears that if the rate of ascent was too low, the air had time to sneakily escape between the ground glass plunger and the syringe interior wall.

So there you have: a sound plan thwarted by unforeseen factors. All is not lost, though, since the QinetiQ chaps did quickly put together another possible pressure-based system, which looks promising. We'll report back on that as soon as we have some new kit ready for testing.

It just remains to say ta very much to QinetiQ for their hospitality and enthusiasm, and to note that'll we'll be posting a video of the test on our YouTube channel in due course. ®

Additional PARIS resources

  • Our dedicated PARIS section, with all previous updates, is right here.
  • New to PARIS? We have a basic mission summary here (pdf).
  • Check out our YouTube channel - currently featuring a few camera tests.

3 Big data security analytics techniques

More from The Register

next story
KILLER SPONGES menacing California coastline
Surfers are safe, crustaceans less so
Opportunity selfie: Martian winds have given the spunky ol' rover a spring cleaning
Power levels up 70 per cent as the rover keeps on truckin'
Liftoff! SpaceX Falcon 9 lifts Dragon on third resupply mission to ISS
SpaceX snaps smartly into one-second launch window
LOHAN and the amazing technicolor spaceplane
Our Vulture 2 livery is wrapped, and it's les noix du mutt
KILLER ROBOTS, DNA TAMPERING and PEEPING CYBORGS: the future looks bright!
Americans optimistic about technology despite being afraid of EVERYTHING
R.I.P. LADEE: Probe smashes into lunar surface at 3,600mph
Swan dive signs off successful science mission
Discovery time for 200m WONDER MATERIALS shaved from 4 MILLENNIA... to 4 years
Alloy, Alloy: Boffins in speed-classification breakthrough
prev story

Whitepapers

Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Top three mobile application threats
Learn about three of the top mobile application security threats facing businesses today and recommendations on how to mitigate the risk.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.