X-ray security inspection equipment can detect various dense contaminants and foreign objects in packaging, loose and pipeline products through X-ray ultraviolet and image information processing, including metal, glass, stone, diseased bones, low-density plastic Rubber compounds, etc.

　　The principle of the metal detector is the electromagnetic induction theorem "the conductor divides the magnetic induction line to cause the detection of electromotive force". In this process, the detection magnetic field applied by the metal observer is disturbed by the foreign conductor and is detected by the metal detector. .
As the name suggests, the metal detector can detect metal foreign objects in the product. In practical applications, the conductors encountered by the metal detector are not enough to generate alarms are usually metal (natural excellent conductor) items, such as swords, metal guns , Antiquities made of metal, etc., so water, graphite, etc. have little conductivity, enough to cause an alarm. And because of the use of balanced coil technology, traditional metal detectors are difficult to accurately detect metal foreign objects in aluminum packaging bags, and product moisture, salt, sugar, etc. also have a certain effect on electromagnetic fields, frozen product detection effect Oops, the test results of thawed aquatic products are usually good.
X-ray foreign body detection machine is able to detect various dense contaminants and foreign bodies in packaging, loose and pipeline products through X-ray ultraviolet and image information processing, including metal, glass, stone, diseased bones, low density plastic And rubber compounds. It is also ideal for detecting packaging products of various sizes and shapes, aluminum foil or metal film packaging products. It is also limited to detecting vertical rigid containers, such as glass bottles, glass jars and metal cans.

X-ray foreign object detector is widely used in the field of food production and processing, and has the following advantages compared with metal detectors:

1. Have increasingly worse detection capabilities for metal foreign objects, and can detect non-metallic foreign objects such as glass and pvc of products.
2. The detection ability is never affected by the state of the frozen product.
3. Foods packaged with aluminum film, dairy products packaged with aluminum foil, and products with metal foreign bodies such as cooked foods have good detection capabilities.

4. It has a good detection ability for the products of soy sauce and other metal foreign matter.

Looked at the comparison between metal detectors and X-ray foreign object detectors. In general, if you want to improve food safety accurately, it is increasingly advantageous to choose X-ray foreign object detectors to detect food foreign objects.