Time:2025-03-15 11:37:11 Read:157
For better sensitivity of metal detectors, the aperture size of the metal detector should be compatible with the specific product size. If the aperture is too large, there is a risk of reducing sensitivity; However, a too small aperture may hinder the passage of products on the conveyor belt.
What size of metal objects can be detected?
The sensitivity of a metal detector depends on two factors: the size of the aperture and frequency. The smaller the aperture size, the higher the sensitivity of the probe. For example, an aperture with a height of 50 millimeters will be able to detect metal objects as small as 0.5 millimeters. Secondly, the higher the frequency, the higher the sensitivity. However, increasing frequency does not necessarily mean an increase in sensitivity, as it may cause the food itself to produce a strong signal to the detector, commonly known as the 'product effect'. In this way, the food metal detector can detect impurities without issuing false alarms. In order to achieve excellent results, specific detection parameters should be determined for each product to be tested and automatically recorded and saved. The industry standard for testing the functionality of food metal detection machines is the size of various metal balls detected by food metal detection machines. But in fact, the style of metal objects also includes fragments of metal wires or metal sheets. They produce differential signals for food metal detection opportunities based on their differences in detector aperture positions, commonly known as directional effects.
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