Interlaced Asymmetrical Cores Transducer (IACT)
The IACT is an electrical transformer.
Schematically it can be represented, basically, as a two windings electrical
isolation transformer on two intertwining asymmetrical ferromagnetic cores,
one annular (a toroid) and one cylindrical, suitable for a wide range
of applications. Just like any transformer can have multiple windings
for power distribution, the IACT can have multiple cores along its toroid
with their own winding, for the same purpose and, unlike a traditional
transformer which must be replaced or rebuilt from scratch if a winding
fails, it would be conveniently serviceable. While at disadvantage if
space is at premium, it has better permeability and overall enhanced heat
dissipation throughout its structure, hence suitable even for high power
applications and the high flux magnetic field which it generates might
find diverse applications in experimental projects since it is suitable
for experimental research/applications with induced audio frequency (AF),
high frequency (HF), pulse or modulated superimposed signals into a magnetic
field within a toroid for comparative researches in biology, botany, clinical
applications as well as, at high power, experimental physics.
In he application described below*
it produces, relative to the electrical power input, a variable density
magnetic field within a toroidal coil superimposed with any desired frequency
in the AF or HF spectrum which yields a no-invasive and no-heating transport
agency of vibrational force. Concurrently, since the magnetic flux is
self-contained in the toroidal coil, it will not target a selected area
but a segment of a specimen within its volumetric space of a
biological culture, or an organism, or an inert substance.
A variety of structures, electrical configurations
and applications are available with the IACT; an experimental apparatus
is here depicted.
A 64 cm (external diameter) toroidal coil
made of a winding of approximately 1950 turns of 0.75 mm PVC insulated
copper wire around an “H” section (31x24 mm) iron annulus
(pictures 1-2) with a supplementary 8 ohm coil
wound around a bi-conical ferrite core through which the toroidal coil
is enclosed in a 96 mm. segment of its circumference (picture
The 8 ohm coil (picture 4) has the function
of an AF inductor from below 1 Hz to 30 kHz; the applied signal can be
sine wave, square wave or complex wave from an audio signal generator,
a pulse generator (figure 1) or, alternatively,
any conceivable AF signal from diverse sources, viz. a computer, an ELF
(Extra Low Frequency) or an ultrasonic generator, or a musical reproducer
or whatever deemed proper. An audio amplifier supplies the AF signal to
the toroidal coil through the 8 ohm coil which in this application replaces
the amplifier’s speaker and this implies a fine control of
the AF input power from the amplifier's volume control; an important consideration
is the type of amplifier used in this respect, since a power Hexfet or
a vacuum tube amplifier will produce even harmonics, while a solid state
amplifier will produce odd harmonics.
An additional bifilar pi-coil of a few turns in between the toroid and
the external core can be used for HF input or, otherwise, for output to
The power supply to the toroidal coil is supplied by a variable 0-16 volt
DC full wave bridge rectifier; alternatively pure DC power (free from
the 50HZ sine wave component of the distribution line) is supplied by
a lead-acid battery with a voltage regulation from 1.2 to 13 volts; in
this case, if the modulating source is not switched on, only a variable
intensity static magnetic field is generated in which the toroid acts
- if shunted - as a permanent magnet; a two-way commutator gives another
choice by reversing to a low frequency (200 Hz to 30 kHz) modulating power
supply (figure2). A variable resistive load
in series with the toroidal coil regulates current input and the voltage/ampere
reading on a digital display (picture 5a-5b)
gives an indication of the power dissipation in watts. Connecting a DC
to AC inverter ahead of the DC supply would allow experimentation with
variable high AC voltages; utmost care should always be exercised to protect
any equipment connected to the input coil from feedback from the same.
The IACT has a good response to diverse frequencies and waveforms input;
a compass’s needle in the center of the toroid will show a remarkable
shift, depending on power input. Unavailability of adequate digital testing
equipment [no resources and no sponsors] does not allow exact specifications
and, clearly, testing it within strict safety precautions.
The toroid, tiltable over 90°, is mounted either
on an stainless steel stand (pictures 6a-6b-6c),
or on a metal frame (pictures 7a-7b) where it
can slide horizontally for a useful distance of 150 cm. wherewith a removable
diamagnetic bench is inserted in between. It is electrically insulated
from its setup while two supporting copper bolts prevent stray magnetic
induction in the metal frame.
Built entirely from junk materials at
hand, this apparatus is a prototype but as such fully functional;
unlike the one described above which followed an undefined idea and grew
up in a collector's junkyard, if properly planned with the appropriate
formulations, parameters and materials for a well defined application
it should allow many interesting options.
Caution: while similar
experimentation might find relevance also in medical and psychotherapeutic
practice, the potentially disrupting AF (Hz) and audio power input (dB)
relation in a self-contained magnetic field, particularly at extra low
frequencies (ELF), should be used with extreme caution and only in strictly
controlled experimental environments; not less so extreme caution is recommended
if investigating possible developments with high voltages and high frequencies.
This is not a magneto-therapeutic device but a research device.
To date there are no conclusive data asserting the clinical effectiveness
of magnetic fields in medical practice, although an impressive amount
of related literature asserts magneto-therapy as efficacious in clinical
applications; this apparatus, by definition, is not a medical appliance.
U.S. National Science Foundation report on public attitudes and understanding
of science noted that magnet therapy is "not at all scientific."
A number of vendors make unsupported claims about magnet therapy by using
pseudoscientific and new-age language. Such claims are unsupported by
the results of scientific and clinical studies.
… In the United States, for example,
U.S. Food and Drug Administration regulations prohibit marketing any
magnet therapy product using medical claims, as such claims are unfounded.).