Inverted metal detection probe

Abstract

The invention provides an inverted metal detection probe. The inverted metal detection probe is characterized in that the probe is a gantry-shaped detection frame; a lower channel of the gantry-shapeddetection frame acts as a detection channel; a detection module comprising a protective shell, a main control module, a drive circuit, a transmitting coil, an even number of receiving coils and a receiving circuit is disposed in the gantry-shaped detection frame; all of the receiving coils are of the same specifications, positioned above the detection channel and in parallel with the detection channel; the transmitting coil is located above the receiving coils and in parallel therewith; each receiving coil is symmetrically arranged above the detection channel with the center point of the position of the transmitting coil as the symmetrical point. The inverted metal detection probe has the advantage that with the structure of a built-in coil of the probe improved, the probe can be easily compatible with conveyor equipment at an installation site.

Description

technical field [0001] The invention relates to the field of material detection, in particular to an inverted metal detection probe. Background technique [0002] Metal detection probes are commonly used equipment for testing finished products in factories, but the problems of the existing probe structure are as follows: 1. Poor anti-electromagnetic interference ability, usually only one layer of shell shielding; .2. Low sensitivity, because of poor anti-electromagnetic interference ability, Therefore, the sensitivity is low (did not dare to increase the sensitivity); 3. The ability to resist mechanical vibration is poor, because the metal shell is heavy, bulky, and empty. When there is mechanical vibration, there will be relative movement with the receiving coil, resulting in False alarm; 4. The installation is inconvenient and the cost is high. It is necessary to replace a factory assembly line with a special transmission mechanism. When the speed of the factory assembly l...

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Problems solved by technology

[0002] Metal detection probes are commonly used equipment for testing finished products in factories, but the problems of the existing probe structure are as follows: 1. Poor anti-electromagnetic interference ability, usually only one layer of shell shielding; .2. Low sensitivity, because of poor anti-electromagnetic interference ability, Therefore, the sensitivity is low (did not dare to increase the sensitivity); 3. The ability to resist mechanical vibration is poor, because the metal shell is heavy, bulky, and empty. When there is mechanical vibration, there will be relative movement with the receiving coil, resulting in False alarm; 4. The installation is inconvenient and the cost is high. It is necessary to replace a section of the factory assembly line with a special transmission mechanism. When the speed of the factory assembly line changes, it is not easy to synchronize

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