Magnetometers for Investigating UFO's

[quink]

i found this:

"Magnetometers for Investigating UFO's and Other Magnetic Phenomena

by L. George Lawrence
This article is from the May, 1978 issue of Popular Electronics. It includes
several diverse magnetometer ideas.
Popular Electronics was merged with Electronics Now to create Poptronics,
which is published by Gernsback. The Poptronics web site includes some good on-line info, including electronics help forums."

A home-build detector to such UFO sightings? Look at the schematic in the Attach Files. The schematic does really or a joke?

[Fred]

A home-build detector to such UFO sightings? Look at the schematic in the Attach Files. The schematic does really or a joke?

Any of those schematic will do what they are claimed to do: detect changes in the magnetic field.
Now the question is: does an UFO really disturbs the magnetic field around it?
The CRT looks interesting, because it is not sensitive to mechanical problems. Also when in use the spot will quickly burn the phosphor,and stop emiting light.Then as soon as the spot is deviated it will produce light again.

[Altra]

Hi,
Regarding the CRT as a magnetometer. I remember buying my first real O-scope. It was a 20mhz Hitachi. I set it up on my bench and it worked great. A few days later I turned it on and switched the input to ground to adjust the level to the grid. I noticed the horizontal trace was tilted. After much frustration I discovered a magnet in my tool drawer just below my scope was causing the trace to be skewed.

So I think this idea could work. What if you took a CCD camera sensor and mounted to the front of the CRT? If you could interface the sensor to a uP or PC, You could track the slight attraction or repulsion as the beam moved accross the pixels of the sensor.

Mark

[Fred]

Hi,
Regarding the CRT as a magnetometer. I remember buying my first real O-scope. It was a 20mhz Hitachi. I set it up on my bench and it worked great. A few days later I turned it on and switched the input to ground to adjust the level to the grid. I noticed the horizontal trace was tilted. After much frustration I discovered a magnet in my tool drawer just below my scope was causing the trace to be skewed.

So I think this idea could work. What if you took a CCD camera sensor and mounted to the front of the CRT? If you could interface the sensor to a uP or PC, You could track the slight attraction or repulsion as the beam moved accross the pixels of the sensor.

Mark

Hi,
That´s the idea, they do it in your PDF with a photoresistor, but a camera with an apropriate software or hardware could work too.
I had similar "problems" with tilted traces, sometimes you don´t even need a magnet to interfere with the beam

[Max]

i found this:

"Magnetometers for Investigating UFO's and Other Magnetic Phenomena

by L. George Lawrence
This article is from the May, 1978 issue of Popular Electronics. It includes
several diverse magnetometer ideas.
Popular Electronics was merged with Electronics Now to create Poptronics,
which is published by Gernsback. The Poptronics web site includes some good on-line info, including electronics help forums."

A home-build detector to such UFO sightings? Look at the schematic in the Attach Files. The schematic does really or a joke?

Hi,
I saw a number of these plans over the years...

Some have magnetometer, others simple electrometers, geiger counters, even hygrometers... many rely on some RF receiver too... usually on very very low frequencies... some Hz mostly (ULF region).
Others like IR camera...

There's a plethora of circuits called "ufo detectors" and some are a mix of the above stuff... plus other things... more exotic (e.g. aura-like photgraphic devices...)

But I see also homebrew radiotelescopes... using common stuff... and as sideeffect used for UFO detection too.

The problem is... why an UFO must emit RF or IR or whatever ???

It's just an idea that people who belive in UFO have of them... that cause such "anomalies" when roll on out the street...

To me is not that simple equation that if there's an UFO there MUST be some anomaly detectable with these (about) simple instruments and homemade gizmoes.

If an alien spacecraft can travel for light-years in the space (or...better... time) why the heck that so advanced stuff could be detectable with an e.g. electroscope ??? I don't understand that.

I think if aliens want people don't see them... no problem we'll never detect anything... cause they know we (humans) are just at beginning of science and universe-rules understanding... so can make big laughs of our rusty (maybe flea market found) geiger counter!

BTW in Roswell crash story... I never heard of such fantastic anomalies... apart fairy-tales by people who wanna sell books...
Seems , instead, that the most interesting details are about the pieces of material recovered there... and of course aliens....
But , sure, that stories are for belivers cause skeptic position about roswell is about related to the secret-project "Mogul"... a very terrestrial top-secret stuff... of 40's!

Kind regards,
Max

[Altra]

Fred,

Maybe your scope and bench were located above a secret UFO cave!

[Qiaozhi]

Fred,

Maybe your scope and bench were located above a secret UFO cave!

It's like this place: http://www.mysteryspot.com/

If you ever get a chance you must go there. It's really inexpensive and good for a laugh. Some people think there's a UFO buried under this spot with its engine still running! Oh well, whatever it takes to sell a book.

Make sure you watch the video.

[Duncan]

Mystery Spot - solved!

The "secret" of the Mystery Spot is simple - all the wooden buildings, sheds, etc are built at a slight angle, so visitors walking around have to stoop to keep upright. If you watch the video, one shot shows vistitors in a roofless building. If you compare their stance with the trees outside in the background, they are standing perfectly upright - it is the building that is slanted.
It is all a case of perspective!
As P.T.Barnum once said, "There is a sucker born every minute!"