Hall Effect Energy Generation

[tak22]

With thanks to elias and gyula I've posted this topic over at OUR:

Hall Effect Energy Generation

If anything of significance is found I'll post it here.

tak

[gravityblock]

I developed an idea to build a negative resistor using the hall effect.
suppose we have a thin foil of conductor, longer the better, we need to turn it into a sin-wave like structure, by folding the copper in Brolli's diagram above then cutting it off and turning it into a sinwave structure, almost like the DNA, but the width of the strip must be maintained. Then we may put this folded sinwave structure in a magnetic field. using this method as current passes through the strip provided that the polarity of the magnetic field is right, a voltage will develop on the folded sin-wave like strip which will be of the same polarity as the applied voltage thus making a negative resistor.
In order to get a good amount of voltage, semi-conductors are a must. (Low impedance Semiconductors)

The Chung's Negative Resistance experiment, by Naudin

Naudin has verified the negative resistance. I will post additional information on Chung's negative resistor in my next post. If you're not interested in it, then please skip over it.

Thanks,

GB

[gravityblock]

On July 12, 1998 the University of Buffalo announced its discovery:


CARBON COMPOSITES SUPERCONDUCT AT ROOM TEMPERATURE

SUPERCONDUCTION AT ROOM TEMPERATURE: NEGATIVE ELECTRICAL RESISTANCE SEEN IN CARBON COMPOSITES

"LAS VEGAS -- Materials engineers at the University at Buffalo have made two discoveries that have enabled carbon-fiber materials to superconduct at room temperature.

The related discoveries were so unexpected that the researchers at first thought that they were mistaken.

Led by Deborah D.L. Chung, Ph.D., UB professor of mechanical and aerospace engineering, the engineers observed negative electrical resistance in carbon-composite materials, and zero resistance when these materials were combined with others that are conventional, positive resistors.....

This finding of negative resistance flies in the face of a fundamental law of physics: Opposites attract.

Chung explained that in conventional systems, the application of voltage causes electrons -- which carry a negative charge -- to move toward the high, or positive end, of the voltage gradient.

But in this case, the electrons move the other way, from the plus end of the voltage gradient to the minus end....................

"In this case, opposites appear not to attract," said Chung. The researchers are studying how this effect could be possible.".........

..............A patent application has been filed on the invention. Previous patents filed by other researchers on negative resistance have been limited to very narrow ranges of the voltage gradient.

In contrast, the UB researchers have exhibited negative resistance that does not vary throughout the entire gamut of the voltage gradient."

The original press release was later pulled from UB's website, on July 16, 1998, and replaced with one which stated "her findings do not indicate that the combination is itself a superconductor."

Chung's paper itself says:

True negative resistance in the former sense is not possible due to energy consideration. However, apparent negative resistance in the former sense is reported here. ... Although the negative resistance reported here is apparent rather than true, its mechanism resembles that of true negative resistance (which actually does not occur due to energetics) in that the electrons flow in the unexpected direction relative to the applied current/voltage.

– Wang, Chung, Apparent negative electrical resistance in carbon fiber composites

According to Tom Bearden, it's a true negative resistor.

Professor Chung is the leading "smart materials" scientist in this country, and a scientist of international reputation. Her team tested the negative resistance effect thoroughly, for a year in the laboratory. There is no question at all about it being a true negative resistor. If there is a team in this country anywhere qualified to test a negative resistance effect in carbon materials, it is Professor Chung and her team at UB.

J-L Naudin responds to queries about his replication experiments:

From: JNaudin509@aol.com
Date: Mon, 21 May 2001 14:46:30 EDT
Subject: Re: Naudin replicates Chung's Negative Resistor


I read your webpage. Have you measured the voltage across points A and C vs
current flowing between them? And/Or did you try attaching a load resistor
to B-D to see what effect it would have on the input circuit?

Dear Mike *******,

Thanks for your interest in my researches. Concerning the measurement method about the CNR, I have used the same method used by Dr. Chung ( fully described in the paper : "Apparent negative electrical resistance in carbon fiber composites," by Shoukai Wang and D.D.L. Chung - Composites, Part B, Vol. 30, 1999, p. 579-590.

The voltage difference between the two laminas in the junction has been
measured across B and C and the current flows from A to C with a standard
resistor ( R1 ) connected in serie. A Keithley 2001 multimeter has been used
during this experiment. The electrical current was calculated by Ohm's Law.

The R1 resistor is placed in serie between the point C and the ground point
of the function generator and the voltage is measured across R1.

Today, I have replaced the oscilloscope by two digital multimeters : One
multimeter is connected across the resistance R1 ( the positive pole at the
point C and the negative pole at the point E ) and the other multimeter
between the point B and D ( the positive pole at the point D and the negative
pole at the point B ). The result is always the same than previously and the negative resistance value is also confirmed.

After 3 days of running, the negative slope of the CNR v2.0 is always the
same, and its value is very stable. I have planned to build a multi-layers
CNR for increasing the negative resistance value so as to get more than 1 ohm.

I am going to try to get some of that Torayca fiber and try it myself. Do
any of you know where I can get some (ie, what kind of distributors or
suppliers carry it)? I would think I would only need a couple feet. And
also, am I correct in converting 1.4megapascal to be about 11.3 pounds (50
Newtons) for an area 6mm by 6mm?

You will find the carbon fiber at :

http://www.torayusa.com/cfa/fiber.htm

and you may download the datasheet of the Torayca T300 (6K) at :

http://www.rkgruppen.se/swedish/prod...er_torayca.htm

I shall be very interested to know your soon results.

Good experiment,

Best Regards
Jean-Louis Naudin
Email: JNaudin509@aol.com
Web site : go.to free short URL redirect and web forwarding service

Below is a quote from the latest revision of the press release.

Chung said that they looked at their initial results skeptically, doubting at first that what they were seeing was correct. After checking and rechecking the connections, and after using different meters over a period of time, they concluded that it was truly negative resistance that they were seeing.

GB

[gyula]

Hi GB,

While the idea from Elias of forming negative resistance from Hall devices sounds interesting and might give extra output beyond its input, I fail to understand how other known negative resistance devices could produce extra output (if the goal you mention them is finding extra output, right?).

I say this because any such true or not true but still negative resistance devices need a certain input energy to bring them into a negative resistance state and this in itself make them a very unusual 'beast' but I am not yet aware of any practical setup that benefits from this by showing extra output, beyond the input.
In the past I built the so called Lambda diode that Lamare already showed in another thread on this forum, consisting of an N and a P channel JFET (junction FET) and they work perfectly as a two terminal oscillator, making the core of a very wide band AF and RF signal generator for instance.
Or there is the Esaki diode (known also as the tunnel diode) that behaves in the same way: when you bias them into the negative resistance region from a battery or a power supply (or from a dedicated circuit) they are ready to make wideband oscillators up to the microwave bands (in fact they were used for such tasks like wide band oscillators OR amplifiers too in the 1960's and 70's). However, you can achive the very similar behavior (negative input resistance) in case of a bipolar transistor or a JFET or MOSFET or an op amp when you insure the correct working conditions for these devices like the clasical oscillator circuits do. I mean for instance Clapp, Colpitts, Hartley etc oscillators, they all form a negative resistance between their two pins out of the three to supply the losses of an LC resonant tank circuit.

So what do I miss with these devices? Naudin confirmed the negative resistance effect is indeed present in those carbon composites BUT has not confirmed it has showed extra output.

Thanks, Gyula

[gravityblock]

Hi GB,

While the idea from Elias of forming negative resistance from Hall devices sounds interesting and might give extra output beyond its input, I fail to understand how other known negative resistance devices could produce extra output (if the goal you mention them is finding extra output, right?).

I say this because any such true or not true but still negative resistance devices need a certain input energy to bring them into a negative resistance state and this in itself make them a very unusual 'beast' but I am not yet aware of any practical setup that benefits from this by showing extra output, beyond the input.
In the past I built the so called Lambda diode that Lamare already showed in another thread on this forum, consisting of an N and a P channel JFET (junction FET) and they work perfectly as a two terminal oscillator, making the core of a very wide band AF and RF signal generator for instance.
Or there is the Esaki diode (known also as the tunnel diode) that behaves in the same way: when you bias them into the negative resistance region from a battery or a power supply (or from a dedicated circuit) they are ready to make wideband oscillators up to the microwave bands (in fact they were used for such tasks like wide band oscillators OR amplifiers too in the 1960's and 70's). However, you can achive the very similar behavior (negative input resistance) in case of a bipolar transistor or a JFET or MOSFET or an op amp when you insure the correct working conditions for these devices like the clasical oscillator circuits do. I mean for instance Clapp, Colpitts, Hartley etc oscillators, they all form a negative resistance between their two pins out of the three to supply the losses of an LC resonant tank circuit.

So what do I miss with these devices? Naudin confirmed the negative resistance effect is indeed present in those carbon composites BUT has not confirmed it has showed extra output.

Thanks, Gyula

Previous patents filed by other researchers on negative resistance have been limited to very narrow ranges of the voltage gradient. In contrast, the UB researchers have exhibited negative resistance that does not vary throughout the entire gamut of the voltage gradient. Below is a quote from Wiki Talk on negative resistance.

Surely you're referring to the same type of negative resistance behavior seen in tunnel diodes, which is already given as an example in the introductory paragraph. Due to conservation of energy, negative resistance can only exist in a small region of any discrete device's operating region, and that is especially true for naturally occurring materials. Does the i–v curve of the materials you're discussing exhibit negative resistance everywhere, and, if it does, does it also intersect the origin (i.e., is it an active device?). Surely it intersects the origin (passive device), has a positive slope at the origin (positive resistance), and has negative resistance away from the origin (negative resistance region, like a tunnel diode), and then goes back to having positive resistance far from the origin (again, like a tunnel diode).

The devices you mentioned doesn't exhibit a negative resistance throughout the enitre voltage gradient. That's what you missed with those other devices.

GB

[gravityblock]

Like silicon, carbon fibres can be doped to be n and p-type semiconductors. But what's even more unusual about this particular material is that it is semiconducting in one direction and metallic in another. Usually, a semiconductor, like silicon, is semiconducting in all directions.

The research shows that the carbon-fiber composite, consisting of layers of carbon fibers, is semiconducting perpendicular to the plane of the junction where the fibers intersect and metallic along its horizontal plane.

GB