Food metal detector is an instrument used to detect metal

Food Metal Detector Food Metal Detector is an instrument specially used to detect metal. In addition to detecting mines with metal casings or metal parts, it can also be used to detect wires hidden in walls and buried underground. Water pipes and cables can even explore underground treasures and discover metal objects buried underground. Food metal detectors can also be used as a fun educational toy for youth defense education and popular science activities. Metal detectors are used for the detection of iron and non-ferrous metals in foods such as meat, fungi, confectionery, beverages, food, fruits and vegetables, dairy products, aquatic products, health products, additives and condiments; chemical raw materials, rubber, plastics Detection of metal impurities in textiles, leather, chemical fiber, toys, medicines, health products, biological products, cosmetics, gifts, packaging, and paper products.
Overview of food metal detectors There are many types of food metal detectors. The earliest applications should be traced back to the period of the Second World War, commonly known as "detectors", using the differences in physical properties such as the dielectric constant of mines and surrounding soils. The microwave electromagnetic field that causes the radiation of the lightning detector is distorted, and the position of the mine is determined by detecting the distortion field signal.
To date, such devices have played a role in various fields, such as security gates for airports and hand-held metal detectors.
The metal detector used in the industry is a sophisticated inspection device for eliminating metal foreign matter contamination.
Principles of Food Metal Detectors Food metal detectors use the principle of electromagnetic induction to detect metals. All metals, including iron and non-ferrous, have high detection sensitivity. The entry of ferromagnetic metal into the detection area will affect the distribution of the magnetic field lines in the detection area, which in turn affects the magnetic flux in a fixed range. The entry of non-ferromagnetic metals into the detection zone will produce eddy current effects and will also cause changes in the magnetic field distribution of the detection zone. Causes the detector to beep. The accuracy and reliability of the detector depend on the stability of the electromagnetic transmitter frequency and is typically used from 80 to 800 kHz. The lower the operating frequency, the better the detection performance of iron; the higher the operating frequency, the better the detection performance of high carbon steel. The sensitivity of the detector decreases as the detection range increases, and the magnitude of the induced signal depends on the size and conductivity of the metal particles.
The application of food metal detectors is mainly used for: sauces, sausages, dumplings, ham, soup, candy, preserved food, salted food, fast food, food additives, starch, glucose, tobacco, fresh meat, dairy products, etc. The industry is suitable for product testing with strong product effects and other industries with high detection sensitivity, anti-interference ability and waterproof requirements. It is used to detect broken needles, wire or lead, which are mixed or lost in food, raw materials or products. Various metals such as copper, aluminum, tin, and stainless steel.