Function and principle of metal detector

2023-12-20

The metal detector is a widely used equipment in industrial production, whose main function is to detect the presence of metal foreign objects in the product. In industries such as food, pharmaceuticals, and cosmetics, metal foreign objects may cause serious harm to human health, so the use of metal detectors is essential.

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The principle of a metal detector is to use electromagnetic induction or X-ray technology to detect the presence of metal foreign objects in the product. When a product passes through a metal detector, the presence of metal foreign objects can cause changes in the electromagnetic field or X-rays, which can be detected by the food metal detector probe. In this way, potential safety hazards can be detected and eliminated on time.

The weighing and packaging system is a common automated production equipment widely used in industries such as food and medicine. Due to the frequent need to package and weigh products during the production process, adding food metal detectors to the weighing and packaging system can effectively ensure product quality and safety.

Specifically, in the food industry, weighing and packaging systems are equipped with metal detectors to quickly and accurately detect various types of food such as vegetables, fruits, and meat. Meanwhile, in the pharmaceutical industry, weighing and packaging systems are often equipped with metal detectors to ensure that drugs are not affected by external pollution.

How to choose the metal detector that suits oneself

Choosing a metal detector that suits oneself requires considering multiple factors:

1. Sensitivity inspection: Different types and brands of metal probes have different sensitivities. Choose the sensitivity that is suitable for use on your production line according to actual needs；

2. Scope of application: The scope of application varies for different types and brands of machinery, and needs to be selected according to the actual needs of the enterprise;

3. Easy to operate: Easy to learn and understand operation is essential for employees to quickly get started with the operation;

4. Maintenance and upkeep: The length of the maintenance and upkeep cycle is also one of the factors to consider;

5. After-sales service: The quality of after-sales service is directly related to the effectiveness of enterprise use and the efficiency of solving maintenance problems in the later stage.

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Maintenance and upkeep methods for metal detectors

To ensure long-term stable operation and accurate and reliable performance, we need to pay attention to the following points:

1. Regularly clean the surface of the probe: Impurities accumulated on the surface of the probe can affect its sensitivity;

2. Regular replacement of parts: replace parts according to the recommended replacement cycle provided by the manufacturer;

3. Regular verification and adjustment: Verify and adjust sensitivity parameters at least once a year;

4. Proper storage and transportation: Avoid exposure to sunlight or damage from tearing and collision.

The development trend of metal detector technology

With the advancement of technology and changes in market demand, we will see the following trends in the coming years:

1. Improvement of intelligence and automation level: adopting advanced intelligent algorithms and computer vision technology to achieve more precision, efficiency, and intelligence;

2. Modern sensing technology is rapidly developing: utilizing new sensing technologies such as nanomaterials, microfluidic chips, and MEMS;

3. Multi-functional integrated design: In addition to the most basic functions, it also integrates multiple functions such as temperature and humidity monitoring, odor recognition, image recognition, etc;

4. Lightweight materials: adopt lightweight material design as much as possible to improve device mobility and portability;

5. Data analysis and processing: Optimize and improve data processing and analysis to make the data more accurate and effective.

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About Kenwei

Guangdong Kenwei Intellectualized Machinery Co., Ltd. has been specializing in the production of customized high-standard and high-precision quantitative weighing and packaging equipment for 18 years. It has developed and expanded a full range of weighing and packaging equipment products, such as combination weighers, linear weighers, metal detectors, check weighers, weighing and packaging systems, etc.

As one of the professional metal detector manufacturers, Kenwei always insists on providing customers with high-quality weighing and packaging equipment, allowing energy-saving and efficient weighing and packaging production lines to enter every enterprise that needs it!