Hypodermic needles

[Nupi]

@Qiaozhi

@Carl-NC


Thanks for your information.

[Carl-NC]

You're looking for particular test results, and I don't think anyone here has done those tests. I haven't, and I don't have any needles to test.

[Qiaozhi]

The Search feature on Geotech returned 27 results for "hypodermic needle". The most interesting one was this (read Eric Foster's post) ->

http://www.geotech1.com/forums/showthread.php?11573-Detecting-Surgical-Instruments&p=42502&highlight=hypodermic+needle#post42502

[Nupi]

I'm not a businessman, but you're right.
Maybe I can make a super gold nugget MD from.


anyway, thanks for your comment.

[Tinkerer]

There is the academic interest. The challenge:Can it be done? Can I do it? This can be fun.

However, we all need to pay our bills. Can we afford to invest countless hours and considerable cost in parts and equipment for the fun of it?

Then there is the business aspect of it. Can it be sold? Who are the buyers? How much will it cost to research and develop? To manufacture? To market? To sell?

How can that be financed? Where and when are the returns?

All this and much more has to be considered before starting a project, if we do not want to spend our life wasting our time.

[Nupi]

I really thought that there are more people that were experimenting with this theme.

I have experimented in the past with detecting from needles but have it stopped by other interests.

Recently has a child pricked with a needle and the neighborhood was very worried again. Fortunately, goes well with the girl.
Because of this, I picked it up again. With my health goes better and now working on multiple projects simultaneously
(nupi PP, beach MD and now also the needle MD) but that is my way of working.

I do not know if there really is a market for it but here in the Netherlands needles of addicts is a big problem.

I think there are authorities that need a detector to cleaning playgrounds and Schools.....

You say, "I think it can be done" I believe that 100% also because what I'm doing now (it is still in an early stage) I can detect tiny needles. Not only in air but also in the grass.
It should all even better with a smaller coil and other things for I now searching with a fairly large coil.

[Tinkerer]

Probably all the information available is mentioned in the old discussions that you can find with the search function.
Eric Foster made an industrial detector for finding broken sewing needles, but I have not heard about any detector capable of finding the hypodermic needles you mention.

There does not seem any interest by anybody in such a detector. Maybe you have found a possible market for such a detector?

I think it can be done.

[Nupi]

Can't anyone give me any information?
Not even the Adnimistrators?

[Nupi]

@AngerManagement


I think they can give me much information with my questions.
I ask only for an air test and what kind of needle has been used and the distance of the detection,
not "In the park / beach / Waterway etc..." I don't need that now.
I want to keep it simple. Can you pass me that simple test result?
Thanks,
nupi

[Nupi]

use the forum search on the upper right corner of the screen:

type in - hypodermic needles - and click

Hello Tinkerer,
Thanks for your tip. I had already the search done but got no results (which I found strange).
I must have done something wrong, but now I see results.
I read things who are well known to me, it is unfortunate that some people who itself can not make it by their own or do not understand the most criticized provide.
And they are usually the same.
Looks like I have here little to expect about this theme.
regards,
nupi

[AngerManagement]

hypodermic needles = Open ended with no clarification...

They come in all sizes from the small ones used for insulin / abuse of drugs etc and up to a size that you would faint when you saw it coming at you.... approx 4mm dia and that is a big fella Then the issues is where are they going to be and how long in the wild ?

Also the older style ones used in many 3rd world places (can be cleaned and re used) have a lump of metal on them and on my tests here.. Detection is not a problem..



So before any one can give you real answers, you need to provide more info...

As to where the ones your are looking at will be located and at what stage...

A: In the park / beach / Waterway etc...

Different detectors and setups for each occasion and while a machine may pick up some on one site they may not at another..

[Tinkerer]

use the forum search on the upper right corner of the screen:

type in - hypodermic needles - and click

[Nupi]

@6666: @greylourie:
Needles are everywhere hard to detect because of the metal they are made of, stainless steel
In general, stainless steel is used, 304 & 306. Type 304 alloys are all modications of the 18% chromium, 8% nickel austenitic alloy.
Type 316 is an austenitic chromium-nickel stainless and heat-resisting steel with superior corrosion resistance. There are also other alloys used. Some needles have a coating.
Special types of needles, one applies an alloy from about 70% platinum and iridium 30%. Such needles are very strong and hard.
They are also very sharp grinding, so you barely feel the prick.


If you have the opportunity you want to try it out? or maybe you know someone who has experience with.


Thanks

[greylourie]

304 Stainless ?

[6666]

Drug needles are hard to detect because of the metal they are made of, at least here in Oz.