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What is a metal detector? Structure and working principle

January 1, 2024 by admin Category: Tech

You are viewing the article What is a metal detector? Structure and working principle  at Tnhelearning.edu.vn you can quickly access the necessary information in the table of contents of the article below.

Metal detectors are hand-held tools widely used to serve the needs of finding metals in mines and ensuring security. Invite you to learn what metal detectors are, their structure and operating principle in this article!

Table of Contents

  • What is a metal detector?
  • Should I use a metal detector?
  • Notes when using metal detectors

What is a metal detector?

Metal detector is a device that applies modern technical technologies to serve the needs of metal detection in mines.

Structure of metal detector

Metal detectors are composed of 5 main parts including:

  • Stabilizer: The position that keeps the device stable when the scanner moves back and forth.
  • Control Panel: This is where the control circuitry, speakers, batteries, and processor are located.
  • Connection bar: This is where the control panel is connected to the search coil.
  • Search coil: Also known as a search probe, capable of sensing metal.
  • Sound system: When the detector scans and finds metal, the machine will emit a signal to the user. In some modern models, there is also a display screen for users to determine the exact location and depth of metal found underground.

What is a metal detector? Structure and working principle

Metal detector is composed of 5 main parts

Working Principle

Metal detector works based on the phenomenon of electromagnetic induction, when the coil emits an electromagnetic field, the device will conduct metal detection through the detector. In the case of metal passing, the induced current will appear and an audible signal will sound, the coil will deviate, otherwise the coil will only receive the normal field.

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Máy dò kim loại sử dụng đầu dò và phát ra tín hiệu khi phát hiện kim loại

Metal detector uses a probe and emits a signal when metal is detected

Should I use a metal detector?

Use for airport inspection

At the airport, metal detectors can help detect metal, weapons, and dangerous items on passengers’ bodies before boarding to ensure the safety of all other passengers on the flight.

Máy dò kim loại sử dụng cho bộ phận kiểm tra tại sân bay để đảm bảo an ninh

Metal detector used for airport inspection to ensure security

Look for small metal objects

Metal detectors are also widely used in archeology to find jewelry, coins or metals in ancient tombs to protect the cultural quintessence left by the ancients.

Máy dò đa năng Bosch D-tect 200 C 12V có thể sử dụng để tìm kiếm những vật kim loại có kích thước nhỏ

The Bosch D-tect 200 C 12V universal detector can be used to find small metal objects

Detect hidden wires

During construction, workers often use metal detectors to detect hidden wires to ensure safety during construction.

Máy dò kim loại có thể phát hiện ra dây điện bị ẩn

Metal detectors can detect hidden wires

Safe products for everyone

Metal detectors do not pose any danger to users during use but bring many benefits in ensuring security and protecting cultural quintessence.

Máy dò kim loại không gây nguy hiểm cho người dùng trong quá trình sử dụng

Metal detectors do not pose any danger to the user during use

Notes when using metal detectors

In order for the device to operate stably and ensure the safety of users during use, you need to pay attention to the following issues:

  • Before using the machine to scan for metal, users should test the device to ensure that it is capable of normal operation and high accuracy.
  • If you use 2 metal detectors at the same time, they should be spaced between 2 – 5m apart to ensure accuracy when scanning.
  • You need to fully charge the battery for the device before using it to avoid interrupting the work.
  • Periodic maintenance of the machine to promptly fix the breakdown and error of the machine.
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Máy dò kim loại cần được sạc pin đầy để đảm bảo khả năng vận hành ổn định

Metal detectors need to be fully charged to ensure stable operation

Bosch D-tect 200 C 12V . multifunction detector

Only sell online
12,155,000₫ 14.300.000₫ -15%

See highlights

  • Compact design, light weight only 0.64 kg .
  • Equipped with a clear LED display to help identify the properties of the material as well as the maximum drilling depth.
  • The machine can detect metal, wood, wire, PVC pipe on the wall surface.
  • The maximum detection depth is 20 cm .
  • Maximum object center detection error ±10 mm.
  • It is a product worth considering in the construction industry and interior design.

See details

The above article has introduced you in detail about metal detectors. Hopefully from the above information, you understand more about this very useful detector and use it effectively in life!

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