cerca metalli, metal detector, Schatzsucher, detección de metales, détecteurs de métaux

Metallsuchgerät Metalldetektor Metallsucher Schatzsucher Detektor metal detector detecteur de metaux, detectores de metales security ,

THE MOST SPECIAL DETECTOR WITH ADVANCED POWER BETTER OF THE BEST ! Take a look to the pictures and informations about our metal detector science.

Nexus Standard SE is the flag ship model from the Nexus Metal Detectors range. It came in existence as a result of several years of cutting edge research in the induction balance technology. Its design offers versatile use on most inland sites and salt water beaches around the world including sites with heavy mineral deposits and black sand beaches.Nexus Standard SE is a non motion type of detector with fast auto tune,with induction balance resonant tuned (99%) search coil. Its general performance is similar to the motion type of metal detectors.Nexus Standard SE exhibits excellent depth penetration and discrimination accuracy by been capable to detect a single coin (30mm) at 18 (45 cm, bottom of a hole) depth under ground or a small silver coin (18mm) at 12.5 (32cm, corner test under compact soil) under ground.From all tests conducted with Nexus Standard SE around the world it has been established that the SE is most powerful coin and relic hunting metal detector ever made.With its unmatched sensitivity the Nexus Standard SE is capable to detect a coin (30mm) in air at 24 (60cm) distance, result impossible for any other metal detector of induction balance type.Nexus Standard SE is a metal detector with excellent low weight (1.8 kg with 10 AA batteries) and excellent weight balance.

all of the mentioned above is related to comparison between different detector types? Following the graphic image on this page I would like to begin this explanation with the so called Multi Frequency Technology (MFT) type of detectors. On the very first place it is important to mention that amongst all detectors based on IB principal, the MFT has the lowest
efficiency, concerning depth penetration capabilities and discrimination accuracy. The reasons: Setting a search head to work on various frequencies will define low Q at all of the frequency setting. That will result in
average to poor depth penetration and unreliable discrimination.
Simultaneous frequency transmission from a TX loop is possible, but that kind of transmission will make the work of any IB detector impossible. Also simultaneous frequency transmission will most certainly result in a very low Q for the whole system. MFT can not offer any real practical advantage to the IB type of metal detectors as far as depth penetration and discrimination accuracy is concernd. Another popular type of IB metal detectors are those with dual frequency settings. All of the mentioned above conditions apply to this type of detectors as well as to the MFT. The difference in this case is that having the search head system to work only on two frequency setting (one at a time) will
provide an opportunity to have maximum Q on at least one of the two frequency setting. That will give a good chance for better depth penetration and discrimination accuracy. The most common type of IB detectors are the single frequency metal detectors. Metal detector set to work at only one frequency, have the best chances to achieve good depth penetration and
discrimination accuracy. The next popular type of metal detectors, capable to compete for better depth, are the PI metal detectors. Relative to the transmitted in the ground energy, the PI detectors are with lower efficiency than the IB. However the fact that average PI metal detector can detect targets deeper under ground than average IB detector, is due to the very high level
of the transmitted signals (few hundred volts pulses). With that allowance in their basic principal the PI metal detectors can win almost any competition for depth. However the greatest disadvantage for the PI detectors is the lack of reliable discrimination. Regardless of all claims on the PI market, the PI principal can not allow good discrimination to be achieved.
The best metal detectors regarding depth penetration and discrimination accuracy are the IB detectors tuned in total or as close as possible to total electro-magnetic resonance. The reasons: It is not possible for any kind of loop to achieve higher Q than the Q as a result of electro-magnetic resonance.
In comparison to a standard, not tuned in resonance search head system, one tuned in total resonance can exhibit up to 100 times higher sensitivity to any desired target. That fact alone lead to use of lower electronic amplification, lower electronic instability and much better resistance to thermal changes for the electronic circuit. A RX loop tuned in total resonance will act also as 10 th order band pass filter against any external interference, which will
almost eliminate the need of any interference prevention filters.
In comparison to off resonance RX loop, one tuned in total resonance is much more sensitive to phase and amplitude changes, which fact can guarantee best depth penetration and discrimination accuracy as can be achieved with any metal detector

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