Mailing List Archive Mailing List Archive
Atle, You're skating on thin design patent ice with this one! You wrote:- >No batteries, no complicated electronics. Can be flooded for shorter >periodes. >It's cheap, it's small, it's user fiendly, it's accessible. It comes in >different colours. >Just mount it in your mask and if it stops working; abort the dive. > >The answer is a Canary3000 BioX. This computer can be ordered from my >company LoboTech inc. > >The problem might be dependability, guess you need to buy three of them and >a larger mask > >Call now and get a coupon for birdseeds The Polly-Gaff Gas Analyser made its debut in '96 (A snip from the inaugural release follows) with patents pending world wide. Let's avoid a nasty legal wrangle. Just send huge sums of money to my Channel Islands bank a/c. :-) Strike ------------------------------------------------------------------ The Polly-Gaff Gas Analyser The inherent problem with gas analysers is their frailty. While primary diving equipment is designed to withstand the rigours of harsh environments the support instrumentation is often less hardy. (A chunk snipped) Invited to seek an inexpensive solution to the problem, Zymurgy Inc. - the international consortium of diving technologists credited with designing, among other things, the Nitrox Snorkel and the 'Mollusc Fu-2' dive computer - brought their vast expertise to bear. Drawing on the lessons learned by other industry groups faced with the problem of maintaining life in potentially hostile atmospheres they came to the conclusion that a biological monitoring device was the answer. Faced with the ever present risk of drilling into pockets of poisonous gas, coal miners of the last century were in the habit of carrying with them a canary in a cage. With its high metabolic rate the canary would quickly succumb to the effects of changes to the atmosphere and provide the miners with advance warning of impending danger. Employing state-of-the-art plastics technology, Zymurgy Inc.'s design team have created a small pressure-resistant bell jar with screw-in base plate, 'O'-ring seals and a centrally located, non-return inlet valve to which is attached a small hose that plumbs directly into the counter-lung of all currently available CC Rebreather models. With an adjustable exhaust valve located on the crown, the jar also contains a small wooden swing, and two small containers, one holding bird seed and the other filled with water. Considerable research went into selecting the appropriate type of bird, the team ultimately deciding on a miniature Australian parrot renowned for its non-stop squawking. Once the parrot is introduced into the jar and the base securely sealed the whole assembly is clipped to a gimbal mounting on the diver's left shoulder in close proximity to his ear. Exhaustive tests on the 'Polly-Gaff' gas analyser showed that while the parrot was exposed to the same breathing mixture as the diver he continued to chatter and squawk, a sound easily carried to the divers ear by virtue of water's greater density. When, however, the PO2 falls below 0.5 or rises above 1.4 Bars then the parrot will usually fall from its perch and cease to make any noise at all, an immediate indication that drastic changes have occurred to the oxygen content of the breathing mixture. Although a few wrinkles still remain to be ironed out it is thought that the 'Polly-Gaff' will, through its novel use of biological controls, add a new dimension to deep diving research. ---ENDS--- For further information contact Zymurgy Inc. Fax. +61 (2) 9981-2950 -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]