If you've ever been curious about metal detecting as a hobby, you've probably come across the term VLF. Very Low Frequency (VLF) metal detectors are the most common type of detectors used by hobbyists and professionals alike. But what exactly are they, and how do they work? Let's dive into the world of VLF metal detectors and uncover the science behind this fascinating technology.
VLF metal detectors are the workhorses of the metal detecting world. They use a technology that operates at very low frequencies, typically between 3 and 30 kHz. This technology allows them to differentiate between various types of metals and provide depth information about buried objects. VLF detectors are known for their versatility and are often the go-to choice for beginners and experienced detectorists alike.
Unlike pulse induction metal detectors, which work differently, VLF detectors are particularly good at discriminating between different types of metals, and this makes them ideal for a wide range of detecting activities, from coin shooting to relic hunting.
The operation of a VLF metal detector is based on the principle of electromagnetic induction. Here's a breakdown of the process:
The detector has two coils: a transmitter coil and a receiver coil. The transmitter coil sends out an electromagnetic field that penetrates the ground.
The receiver coil picks up changes in the electromagnetic field caused by metal objects in the ground.
When the electromagnetic field encounters a metal object, it creates a small electric current in that object. This current then generates its own magnetic field, which is detected by the receiver coil.
The detector's circuitry analyzes the signal from the receiver coil and provides information about the type of metal and its depth. This information is then displayed on the detector's screen or indicated through audio signals.
VLF metal detectors come with several features that enhance their performance:
VLF detectors can be quite sensitive, capable of detecting small objects at reasonable depths. The exact depth depends on factors like the size and composition of the object, as well as the detector's power and settings.
This feature allows the detector to adjust to the mineral content of the soil, reducing false signals and improving detection accuracy.
Some advanced VLF detectors allow you to adjust the operating frequency, which can be useful for optimizing performance in different conditions or for specific types of targets.
There are several advantages to using a VLF metal detector:
VLF detectors are excellent at discriminating between different types of metals. This means you're less likely to dig up unwanted items like aluminum cans when you're searching for coins or relics.
These detectors are suitable for a wide range of detecting activities, from beach combing to coin shooting to relic hunting. If you're looking for high quality gold detectors, many VLF models are excellent choices for prospecting.
Compared to some other types of metal detectors, VLF models are generally more affordable, making them accessible to hobbyists at various budget levels.
While VLF detectors are versatile and great for discrimination, they have some limitations compared to pulse induction (PI) detectors:
VLF detectors use two coils and operate at low frequencies, while PI detectors use a single coil and send powerful, short bursts of current into the ground.
VLF detectors excel in areas with low mineralization and are great for coin shooting and relic hunting. PI detectors, on the other hand, are better for highly mineralized soils and excel at finding deep, large objects like gold nuggets.
When selecting a VLF metal detector, consider factors such as:
Many detectors come with preset modes for different types of hunting, which can be helpful for beginners.
To get the most out of your VLF metal detector:
Take the time to properly set up and calibrate your detector before each use. This includes ground balancing and adjusting sensitivity settings.
Move the detector slowly and keep the coil parallel to the ground. Overlap your sweeps to ensure you don't miss any spots.
Keep your detector clean and dry, and store it properly when not in use; regular maintenance will ensure your detector performs well for years to come.
Overall, VLF metal detectors are powerful tools that can open up a world of discovery. Whether you're a seasoned detectorist or just starting out, understanding how these detectors work can help you make the most of your detecting adventures. Happy hunting!
With your new detector, you will receive a Quick Start Guide, a valuable resource designed to guide you through the essential steps of operating your new device seamlessly. This user-friendly guide is tailored to ensure that even beginners can quickly grasp the fundamental functions and features.
For those seeking a more profound understanding, a comprehensive manual accompanies your purchase. This detailed manual delves into the intricacies of your detector, providing a wealth of information for users eager to explore advanced settings and capabilities.
However, the pinnacle of expertise in harnessing your detector's full potential lies in professional training. While guides and manuals offer a solid foundation, professional training takes your knowledge to the next level. Through hands-on instruction and insights from seasoned experts, you'll gain a deeper understanding of your detector's nuances and unlock its optimal performance.
During the individual training, our detector Expert addresses your wishes and questions, provides you tips and tricks and helps you to improve your chances of success with your detector.
In addition to a general introduction to the functionality and operating modes of your detector, the detector Expert explains how to use the detector efficiently in the field. In doing so, he can correct small errors during the measurement and advise you on special features of your search projects.
You will learn how to check your measurements and further improve your scanning technique independently. You can also draw initial conclusions about potential target objects in the underground.
Trainings are charged per hour! Additional costs may apply for training sessions. For special requests please contact us at info@detectorpower.com
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