Tweet
Excerpts of review of DALTON PROTON MAGNETOMETER - Treasure, 9/84.
...500 pound engine block... The first was a simple air test
conducted in an
"ideal" environment, where there were no powerlines or other
electrical noise mak-
ers and where no heavy concentrations of iron mineralization in the
ground would
disrupt the most efficient base signal. The Liebhazet [Dalton] will
function well
under less than ideal conditions, but its greatest sensitivity is
achieved when
the operator can obtain the single dying beat of "WHE-ee-ee..."
[sic] Under our
ideal conditions, we were able to detect the engine block at a depth
[sic -?] of
30 feet through both an earpiece and an external speaker. When we
attached a
voltmeter, an optional accessory from the manufacturer, we were able
to detect the
block at 40 feet.
Curious about how much sensitivity would be lost when detecting the
engine [block]
through some medium other than air, we used towed lift bags to drop
the 500 pound
mass into a nearby lake. Surprising, the results were the same -
...
To reach such depths, though, the operator must be skilled, for we
obtained these
distances from a two-beat signal, something which could be caused by
"hot
rocks"...
...second stage of an experiment at a deep mountain lake in northern
California.
Taking events in chronological order, the test team first sank the
500 pound en-
gine block to a depth of 50 feet, and we managed to detect it at the
additional 10
feet distance thanks to a couple of the accessory items: a chart
recorder ... and
a "fish"... The fish, of course, obtained us an extra five feet of
depth because
that is how far it was beneath the lake's surface as it was being
towed..., while
the chart recorder simply makes reading signals far more precise.
Through it we
were able to distinguish a slight hit better than with either the
speaker or
meter. But again, as in previous tests, this distance of 50 feet
was close to
maximum, since we were towing the fish directly over the target and
obtained sig-
nals that were discernible but faint.
Then came the second stage, when we lowered the engine [block] to 85
feet! Al-
though skeptical, thinking this had to be a waste of time, we
proceeded with the
attempt anyway because Dalton Research assured us it had just
invented an acces-
sory that "enhanced" the magnetometer's sensitivity. A small silver
box called
"DQM Timer... ...we not only detected the engine [block] quite
easily going di-
rectly over it but also, again easily, with our boat 15 to 20 feet
off to the
side. Throughout these runs, the fish remained on the lake's
surface rather than
submerged, so it was the silver box alone that caused the
sensitivity gain... sug-
gests increases sensitivity by two to three times...
...
... This technique [perpendicular to line of travel] would be
impossible in
thickets down South and elsewhere. There one would have to settle
for toting the
Liebhazet bazooka-style over the shoulder, or around the waist,
PARALLEL to the
line of walk, which reduces the swath one can detect by maybe half.
...
The outcome of the [additional] tests, or our playing around, was
two dumps. The
top of the first, which provided a peak signal of about 22 beats, we
struck at a
depth of six feet and dug from it close to 300 pounds of iron relics
from an 1890s
stamping mill,...
Our second effort was even worse - or better, depending on how you
feel about dig-
ging. It gave a peak signal of 18 beats, and six feet off to all
sides we found
the half-peak signal of nine beats. The last several days before
writing this re-
port we spent digging this monster out, and at a depth of 12 feet
began hitting
the tip of the iceberg - old tin cans, electrical wiring, telegraph
components
and, finally glass.
...
Unlike most standard metal detectors, the Proton Magnetometer
transmits no energy,
or signal: rather, it's merely a receiving or sensing device. What
it senses
is...
...differential magnetometer... two sensors...
...while Dalton's analog Proton Magnetometer is best used fro
detecting small to
larger concentrations of iron. ...
For more information about the Liebhazet and its line of
accessories, call (214)
691 - 4925 or write Dalton... 6035 Aberdeen, Dallas, TX 75230. END
of TREASURE
review excerpt.
In the magazine their phone number is shown as (81
367 - 3531 and
the address of
the editorial offices 6280 Adobe Road, 29 Palms, CA 92277. I am not
sure if it is
still published. Back issues may be available from Bill Henderson
(970) 565 -
7392.
The review is over 15 years old. Presumably, Dalton has improved
the performance
over that period. In his current literature ($3.00) he shows the
following depths
for the 1/10 gamma (nT) unit: "...1 lb. of steel at 20 feet., 64
lb. at 80 ft., 2
tons at 320 ft., 125 tons at 1280 ft."
...500 pound engine block... The first was a simple air test
conducted in an
"ideal" environment, where there were no powerlines or other
electrical noise mak-
ers and where no heavy concentrations of iron mineralization in the
ground would
disrupt the most efficient base signal. The Liebhazet [Dalton] will
function well
under less than ideal conditions, but its greatest sensitivity is
achieved when
the operator can obtain the single dying beat of "WHE-ee-ee..."
[sic] Under our
ideal conditions, we were able to detect the engine block at a depth
[sic -?] of
30 feet through both an earpiece and an external speaker. When we
attached a
voltmeter, an optional accessory from the manufacturer, we were able
to detect the
block at 40 feet.
Curious about how much sensitivity would be lost when detecting the
engine [block]
through some medium other than air, we used towed lift bags to drop
the 500 pound
mass into a nearby lake. Surprising, the results were the same -
...
To reach such depths, though, the operator must be skilled, for we
obtained these
distances from a two-beat signal, something which could be caused by
"hot
rocks"...
...second stage of an experiment at a deep mountain lake in northern
California.
Taking events in chronological order, the test team first sank the
500 pound en-
gine block to a depth of 50 feet, and we managed to detect it at the
additional 10
feet distance thanks to a couple of the accessory items: a chart
recorder ... and
a "fish"... The fish, of course, obtained us an extra five feet of
depth because
that is how far it was beneath the lake's surface as it was being
towed..., while
the chart recorder simply makes reading signals far more precise.
Through it we
were able to distinguish a slight hit better than with either the
speaker or
meter. But again, as in previous tests, this distance of 50 feet
was close to
maximum, since we were towing the fish directly over the target and
obtained sig-
nals that were discernible but faint.
Then came the second stage, when we lowered the engine [block] to 85
feet! Al-
though skeptical, thinking this had to be a waste of time, we
proceeded with the
attempt anyway because Dalton Research assured us it had just
invented an acces-
sory that "enhanced" the magnetometer's sensitivity. A small silver
box called
"DQM Timer... ...we not only detected the engine [block] quite
easily going di-
rectly over it but also, again easily, with our boat 15 to 20 feet
off to the
side. Throughout these runs, the fish remained on the lake's
surface rather than
submerged, so it was the silver box alone that caused the
sensitivity gain... sug-
gests increases sensitivity by two to three times...
...
... This technique [perpendicular to line of travel] would be
impossible in
thickets down South and elsewhere. There one would have to settle
for toting the
Liebhazet bazooka-style over the shoulder, or around the waist,
PARALLEL to the
line of walk, which reduces the swath one can detect by maybe half.
...
The outcome of the [additional] tests, or our playing around, was
two dumps. The
top of the first, which provided a peak signal of about 22 beats, we
struck at a
depth of six feet and dug from it close to 300 pounds of iron relics
from an 1890s
stamping mill,...
Our second effort was even worse - or better, depending on how you
feel about dig-
ging. It gave a peak signal of 18 beats, and six feet off to all
sides we found
the half-peak signal of nine beats. The last several days before
writing this re-
port we spent digging this monster out, and at a depth of 12 feet
began hitting
the tip of the iceberg - old tin cans, electrical wiring, telegraph
components
and, finally glass.
...
Unlike most standard metal detectors, the Proton Magnetometer
transmits no energy,
or signal: rather, it's merely a receiving or sensing device. What
it senses
is...
...differential magnetometer... two sensors...
...while Dalton's analog Proton Magnetometer is best used fro
detecting small to
larger concentrations of iron. ...
For more information about the Liebhazet and its line of
accessories, call (214)
691 - 4925 or write Dalton... 6035 Aberdeen, Dallas, TX 75230. END
of TREASURE
review excerpt.
In the magazine their phone number is shown as (81
367 - 3531 and the address of
the editorial offices 6280 Adobe Road, 29 Palms, CA 92277. I am not
sure if it is
still published. Back issues may be available from Bill Henderson
(970) 565 -
7392.
The review is over 15 years old. Presumably, Dalton has improved
the performance
over that period. In his current literature ($3.00) he shows the
following depths
for the 1/10 gamma (nT) unit: "...1 lb. of steel at 20 feet., 64
lb. at 80 ft., 2
tons at 320 ft., 125 tons at 1280 ft."