Metal Detectors for Serious Hobbyists
What is a metal detector?
The metal detector is a device that detects the presence of metal in its vicinity. Objects buried underground or metal hiding within them can be detected using this instrument. A metal detector works by emitting an electromagnetic field into the ground from its search coil. Metal objects (targets) within the electromagnetic field will become energised and create an electromagnetic field of their own. Search coils receive retransmitted fields and alert the user by producing a target response.
Types Metal Detectors
What are the different types of metal detectors?
Metal detectors are of three main types, and each is capable of looking for different things and differs in price. Below are the common types of metal detectors:
- Very Low Frequency (VLF) Metal Detectors: This is the most popular type of metal detecting technology. The device uses two coils, one for the transmitter and another for the receiver.
- Multi-Frequency Metal Detectors: Multiple frequencies can be used simultaneously by this device. The use of calibrated frequencies allows this machine to identify small and large objects at various depths all of the same time.
- Pulse Induction (PI) Metal Detectors: This device uses one coil that acts both as a transmitter and receiver of electrical current. It is good for deep depth detection and excellent for gold prospecting and beach hunting.
What Reviewers Have to Say
Here are some things to consider when buying a metal detector that will best fit for your needs:
- Type: Consider high-frequency detector if you wish to detect gold more easily, however keep in mind that it also gives false positives when iron deposits are present. On the other hand, low-frequency detectors are used to l separate other metals and uncover larger deposits at greater depths.
- Depth: Invest in a metal detector that indicates how deep an object is. Having this information will help you determine how deep you should dig.
- Coil: The larger the coils, the greater the depth at which the object can be found, whereas the smaller the coils, the shallower the depth at which the object can be found.
For detecting deposits buried in bedrock, a small coil is preferred, while a large coil might be more effective for discovering gold nuggets in tailings piles. - Weight: A heavy metal detector may be difficult to carry for a long time, so consider a lightweight metal detector for maximum convenience.
- Feature: When deciding what features to add, you can think about who will use your detector and where you will use it. Detecting on the beach may require a waterproof detector while tracking via GPS will require the feature itself installed on your device.
Important Features
How to take care of your metal detector?
To extend the service life of your metal detector, it is important to perform proper maintenance. The following are some tips for taking care of your metal detector and its parts.
- Cleaning: The joints of your metal detector should be cleaned with a brush, especially after you have done some beach metal detecting. The brush can clean the sand, and it is better to do this with fresh water.
- Lubrication: The coil and the control box are linked by wires, which are essential for signal transmission. Thus to keep the wires in good condition, it is important to use lubricants.
- Batteries: When you are not going to use your machine for a long time, remove the batteries. Your metal detector can be damaged by old batteries. Be sure to store your metal in a dry and cool place but out from direct sunlight.
- Device Shaft: This is also an important part of its construction. It would be enough to wipe it down after each use. It is also important to pay attention to the search coil, which can be scratched while being used. That's why it's recommended to buy a protective cover for it.
