What do metal detectors find

Metal detectors work by transmitting an electromagnetic field from the search coil into the ground. Any metal objects targets within the electromagnetic field will become energised and retransmit an electromagnetic field of their own. Minelab metal detectors are capable of discriminating between different target types and can be set to ignore unwanted targets.

This is where the transmit signal is generated and the receive signal is processed and converted into a target response. Transmit Electromagnetic Field visual representation only - blue. A target is any metal object that can be detected by a metal detector.

In this example, the detected target is treasure, which is a good accepted target. Unwanted targets are generally ferrous attracted to a magnet , such as nails, but can also be non-ferrous, such as bottle tops. If the metal detector is set to reject unwanted targets then a target response will not be produced for those targets. Receive Electromagnetic Field visual representation only - yellow.

The receive electromagnetic field is generated from energised targets and is received by the search coil. When a good accepted target is detected the metal detector will produce an audible response, such as a beep or change in tone. Many Minelab detectors also provide a visual display of target information such as an ID number or 2 dimensional display. Frequency The frequency of a metal detector is one of the main characteristics that determines how well targets can be detected. Generally, a single frequency detector that transmits at a high frequency will be more sensitive to small targets and a single frequency detector that transmits at low frequencies will give more depth on large targets.

Ground Balance Ground Balance is a variable setting that increases detection depth in mineralised ground. This ground may contain salts, such as in wet beach sand or fine iron particles, such as in red earth.

Due to the much larger mass of the ground compared to a buried target, the effect of mineralisation can easily mask small targets. To correct this the Ground Balance setting removes the responding ground signals, so you clearly hear target signals and are not distracted by ground noise. Happy to do business with you, Hello Dan, Remember me?

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Next the order receives a final scan, an address label is generated and the shipping details are emailed to the customer for online tracking. The Founding Family of MetalDetector. Michael adjusting an early Garrett Metal Detector in North Carolina at the first treasure hunt we ever displayed our products at back in Sondra on the road again helping a customer learn about the hobby at a metal detector show.

Daniel and Sondra, posing for a picture while on a family metal detecting vacation in the Caribbean. Sondra and Daniel at another one of the hundreds of treasure events that they attended in the early years across the United States. Michael and Daniel pose for a picture inside the Minelab headquarters in Adelaide Australia while attending a distributor meeting. Michael and Daniel attend Treasure Week in Seymour Indiana, one of the largest organized treasure hunts in the country.

David, Michael and Daniel posing after a day of metal detecting at the beach. In the early years Sondra worked tirelessly and wore many hats. She officially retired in , but continues to serve as an advisor to her sons as only a mother can! This is a photo of the last location that we occupied for over a decade. David and Sondra never envisioned that we would ever outgrow this space!

Sondra and the gang from Garrett Metal Detectors at a trade show. Michael and Daniel touring the Minelab factory in Australia. Is anyone looking?

Should we be touching these? General-purpose metal detectors can find buried metal objects such as jewelry, coins and other metal objects. For example, an audio type of discriminator can be set to send sound signals that indicate metals of interest such as nickel and reject pull-tabs. The very-low-frequency metal detector VLF can pick up strong signals from ferromagnetic substances such as grains of iron-bearing minerals in the sand or soil.

This is completely false. A website called Recent Metal Detecting Finds is only one place where metal detector enthusiasts post photos of the coins, jewelry, and other items they found. Take a look at it. And the fact is that if you take your detector out this weekend, you too will probably have some discoveries to report. Sure, beaches are great places to find lost items of jewelry, for a very good reason.

But there are plenty of other areas where metal detector enthusiasts are finding treasures every day. They include the sites of old buildings, the areas near walls that surround graveyards, and even open fields where buildings or wells were once located. Civil War battlefields are another place to find treasure with your detector.

Just to review, ferrous metals are metals that contain iron — metals like iron, and steel. We do not know where this idea came from, but we have heard people voicing it.