Regional metal detection machine and regional metal detection control method
A metal detector and sub-regional technology, applied in the direction of measurement device, geophysical measurement, radio wave measurement system, etc., can solve the problems of adverse effects of product detection work, reduced detection accuracy of probes, false alarms, etc. The method is simple and the effect of improving the detection rate
Active Publication Date: 2016-12-14
TECHIK INSTR SHANGHAI
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Problems solved by technology
In order to allow such unevenly distributed products to pass through the probe, it is necessary to reduce the detection accuracy of the probe, otherwise there will be a large number of false alarms
The resulting problem is that it inevitably leads to the occurrence of missed inspections, which makes it difficult to reconcile the contradiction between ensuring the detection rate and reducing false alarms, and adversely affects the product inspection work.
Method used
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[0039] In order to understand the technical content of the present invention more clearly, the following examples are given in detail.
[0040] see Figure 4 As shown, it is a structural schematic diagram of the coil module of the sub-area metal detector of the present invention.
[0041] In one embodiment, the sub-area metal detector includes a coil module, a signal generation module (transmitting component) and a data processing module (data processing component) connected to the coil module, and a metal judgment module connected to the data processing module (judgment component). Wherein, the coil module such as Figure 4 As shown, it includes a transmitting coil group and a receiving coil group, and the transmitting coil group and the receiving coil group respectively include a plurality of transmitting coils and receiving coils with the same number, and the transmitting coils and receiving coils are as follows Figure 6 As shown, one by one relative setting. Such as ...
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The invention relates to a regional metal detection machine and a regional metal detection control method, and belongs to the technical field of detection. A coil module of the regional metal detection machine comprises a transmitting coil assembly and a receiving coil assembly which respectively comprise a plurality of transmitting coils and receiving coils having the same quantity and arranged in one-to-one correspondence. In the method, each transmitting component drives each transmitting coil to transmit signals, and each receiving component receives the signals from each receiving coil; a data processing module generates carrier signals, acquires the receiving signals from the receiving components, and calculates multiple regional detection results, thereby realizing regional detection, then reducing or improving the detection precision at a specified part, obtaining relatively high detection precision and improving the detection rate of metal foreign bodies; the regional metal detection machine is simple in structure and low in cost; and the regional metal detection control method is simple and convenient to implement and wide in application range.
Description
technical field [0001] The invention relates to the technical field of detection, in particular to the technical field of metal detection, and specifically refers to a regional metal detection machine and a regional metal detection control method. Background technique [0002] Metal detectors in the prior art usually adopt a figure 1 The upper and lower structure of the probe is shown. Its general structure is the lower part of the probe such as image 3 As shown, the transmitting coil is wound; the upper part is shown as figure 2 As shown, wind the receiving coil. The distribution structure of the probes with upper and lower separation is conducive to the passage of large-volume products to be tested, and is more suitable for the detection of large-volume products. [0003] However, in these large-volume products, due to the structural characteristics of the product itself, the product signal of some parts is greater than that of other parts. In order to allow such un...
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IPC IPC(8): G01V3/11
CPCG01V3/10
Inventor 牟翔项安幸波施利辉卢钢戈武修文
Owner TECHIK INSTR SHANGHAI