metalpopper
New member
Hello, to readers of the Technology forum.
This 'separate post' is offered to readers who may have been confused by the controversial differences of opinions that ensued from Ringzapper's initial post and my (metalpopper).'s reply. That thread subsequently attracted a contradictory point of view, principally from Dave J.... and further supplemented with his supporter’s retaliatory posts, in response to my robust rebuttal of his mystifying lack of understanding of what I had written; especially as Dave is noted for his experience in the art.
The Discriminating (to iron) Pulse Induction. - Fantasy? (Pages: 1 2)
by Ringzapper
1,632 18 05/07/2015 11:47PM
Last Post by Dave J.
In this post, I simply, paste relevant copies of articles from MINELAB’s KNOWLEDGE BASE.
URL:- http://www.minelab.com/emea/consumer/knowledge-base/terminology.
If you explore the KNOWLEDGE BASE, I believe that you will find conclusive evidence as to what
VLF and PI are intended to infer when using those abbreviation in metal detecting discussions.
Note the endorsements regarding PI and VLF which are dispersed in the relevant sections; especially those accredited to BRUCE CANDY.....A qualified physicist, who, by applying his academic knowledge of mathematics and electromagnetics, to the physics involved in metal detecting in highly ferro-mineralised soils, transformed primitive pulse technology into a sophisticated science that can operate over environments where VLF technology struggles to compete.
[size=x-large]With acknowledgement of MINELAB'S proprietorial rights[/size]
PULSE INDUCTION (PI)
Pulse Induction (PI) is a type of metal detecting technology. Pulse induction operates by sending short pulses of voltage to the metal detectors coil. These short pulses cause a magnetic field to be generated which quickly dissipates at the end of each pulse. Any metal targets that induce the magnetic field remain magnetised for a short time after the end of a pulse. The target’s decaying magnetism is then detected by the detector’s coil. (Also see “Multi period sensing (MPS)” & “Dual Voltage Technology (DVT)”)
MULTI PERIOD SENSING (MPS)
MPS (Multi Period Sensing) is Minelab’s advanced Pulse Induction (PI) technology that transmits pulses of different time periods. MPS also samples the receive signal at multiple time periods allowing target signals and ground signals to be separated. This effectively removes the ground signal from even the most highly mineralised ground while still being sensitive to both small and deep gold. This achieves superior depth in extremely mineralised ground.
DUAL VOLTAGE TECHNOLOGY (DVT)
DVT (Dual Voltage Technology) is Minelab’s advanced Pulse Induction technology that uses pulses with two voltage levels to further enhance MPS. The two voltage levels work in combination with the different time period pulses transmitted by MPS to increase the amount of power transmitted into the ground. DVT also allows more of the ground signal to be removed, further increasing detection depth and sensitivity. This achieves ultimate depth in extremely mineralised ground.
1. Minelab Technologies | Minelab Knowledge Base
... VFLEX technology ... signal processing to enhance conventional single frequency (VLF) metal detector technology ... EX transforms conventional single frequency metal detection technology by including two micro-controllers (miniature computers), on ...
consumer/knowledge-base/minelab-technologies
2. Terminology | Minelab Knowledge Base
... Double-D coil (DD) Dual Voltage Technology ... or VFLEX VLF ... Continuous wave is a type of metal detecting technology ... Dual Voltage Technology (DVT) DVT (Dual Voltage Technology) i ...
consumer/knowledge-base/terminology
VLF (VERY LOW FREQUENCY)
VLF is a type of metal detecting technology. VLF metal detectors create an electromagnetic field that is applied to the ground in a continuous sine wave.
This 'separate post' is offered to readers who may have been confused by the controversial differences of opinions that ensued from Ringzapper's initial post and my (metalpopper).'s reply. That thread subsequently attracted a contradictory point of view, principally from Dave J.... and further supplemented with his supporter’s retaliatory posts, in response to my robust rebuttal of his mystifying lack of understanding of what I had written; especially as Dave is noted for his experience in the art.
The Discriminating (to iron) Pulse Induction. - Fantasy? (Pages: 1 2)
by Ringzapper
1,632 18 05/07/2015 11:47PM
Last Post by Dave J.
In this post, I simply, paste relevant copies of articles from MINELAB’s KNOWLEDGE BASE.
URL:- http://www.minelab.com/emea/consumer/knowledge-base/terminology.
If you explore the KNOWLEDGE BASE, I believe that you will find conclusive evidence as to what
VLF and PI are intended to infer when using those abbreviation in metal detecting discussions.
Note the endorsements regarding PI and VLF which are dispersed in the relevant sections; especially those accredited to BRUCE CANDY.....A qualified physicist, who, by applying his academic knowledge of mathematics and electromagnetics, to the physics involved in metal detecting in highly ferro-mineralised soils, transformed primitive pulse technology into a sophisticated science that can operate over environments where VLF technology struggles to compete.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[size=x-large]With acknowledgement of MINELAB'S proprietorial rights[/size]
PULSE INDUCTION (PI)
Pulse Induction (PI) is a type of metal detecting technology. Pulse induction operates by sending short pulses of voltage to the metal detectors coil. These short pulses cause a magnetic field to be generated which quickly dissipates at the end of each pulse. Any metal targets that induce the magnetic field remain magnetised for a short time after the end of a pulse. The target’s decaying magnetism is then detected by the detector’s coil. (Also see “Multi period sensing (MPS)” & “Dual Voltage Technology (DVT)”)
MULTI PERIOD SENSING (MPS)
MPS (Multi Period Sensing) is Minelab’s advanced Pulse Induction (PI) technology that transmits pulses of different time periods. MPS also samples the receive signal at multiple time periods allowing target signals and ground signals to be separated. This effectively removes the ground signal from even the most highly mineralised ground while still being sensitive to both small and deep gold. This achieves superior depth in extremely mineralised ground.
DUAL VOLTAGE TECHNOLOGY (DVT)
DVT (Dual Voltage Technology) is Minelab’s advanced Pulse Induction technology that uses pulses with two voltage levels to further enhance MPS. The two voltage levels work in combination with the different time period pulses transmitted by MPS to increase the amount of power transmitted into the ground. DVT also allows more of the ground signal to be removed, further increasing detection depth and sensitivity. This achieves ultimate depth in extremely mineralised ground.
1. Minelab Technologies | Minelab Knowledge Base
... VFLEX technology ... signal processing to enhance conventional single frequency (VLF) metal detector technology ... EX transforms conventional single frequency metal detection technology by including two micro-controllers (miniature computers), on ...
consumer/knowledge-base/minelab-technologies
2. Terminology | Minelab Knowledge Base
... Double-D coil (DD) Dual Voltage Technology ... or VFLEX VLF ... Continuous wave is a type of metal detecting technology ... Dual Voltage Technology (DVT) DVT (Dual Voltage Technology) i ...
consumer/knowledge-base/terminology
VLF (VERY LOW FREQUENCY)
VLF is a type of metal detecting technology. VLF metal detectors create an electromagnetic field that is applied to the ground in a continuous sine wave.
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Thanks for reading.....matt
Thanks for reading.....matt