The hottest metal detector and the influencing fac

2022-10-12
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Metal detector and its influencing factors of detection accuracy

for a period of time, the food, candy, tobacco and other industries have taken a series of measures to improve product quality, such as the larger feed speed and drill bit diameter can reduce the layering grass. However, even if the production is highly automated and the tube filtration efficiency is 90%, 95% and 99.97% respectively, the possibility of metal contamination of products in the production process cannot be completely ruled out. Therefore, if the products are polluted by metals, enterprises must use metal detectors to remove unqualified products from the production line

why use a metal detector

a small piece of metal in candy or other food may seriously harm consumers. Therefore, the primary purpose of using metal detector is to protect the interests of consumers and establish a good corporate image. In addition, a small piece of metal on the production line will also cause serious wear and tear to the production equipment of the enterprise, and the maintenance cost of the equipment is very expensive, which will greatly increase the production cost of the enterprise

several factors affecting metal detection

(1) conversion coil frequency

conversion coil emission frequency and the size of metal sheet will directly affect the detection results

(2) the phase angle of the conversion coil causes the phase relationship of various metals

each different metal can produce different detection signals. Therefore, the detection signal can be taken as a vector, the phase angle represents the metal class, and the vector length represents the size of the metal sheet

(3) product effect

if a product can conduct electricity, the product usually has a certain amount of moisture. It can be said that it has product effect by conducting in-depth research on the circular economy of fiber reinforced composites in the UK. From the technical point of view of metal detection, this conductive product is no different from metal

sensitivity of metal detector

due to different magnetic field distribution, the sensitivity of metal detector changes. The closer to the center line, the lower the sensitivity. The sensitivity at the center line is the lowest, so the test sample should pass through the center line during the test

factors affecting detection sensitivity

metal detection is a relatively complex technology, and its results are affected by many factors

1. inspection port size

2. Working frequency

3. Metal type

4. Metal sheet shape

5. External environmental impact

6. Product effect impact

7. Way of passing: continuous/intermittent

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