Features of Intelligent Dual Frequency Metal Detector

As the application range of metal detectors becomes more and more extensive, especially in the food and textile processing industries, the demand for high-performance metal detection equipment has become particularly urgent. The intelligent dual-frequency metal detector adopts a dual-frequency working mode that combines low frequency and high frequency, which improves the defects of single detection type and low detection accuracy of previous metal detectors. This dual-frequency working method can simultaneously detect ferromagnetic metals and non-ferromagnetic metals, and obtain higher detection accuracy.

The characteristics of the intelligent dual-frequency metal detector are as follows: One is the dual-frequency working mode. In principle, the problem of the single detection type of metal detectors in the past is solved, and ferromagnetic and non-ferromagnetic metals can be detected with high sensitivity at the same time. The second is to use TMS320LF2407 as the processing core, which has a higher cost performance. Third, DSP is mainly used for DDS signal generation, sampling, and detection data analysis and processing. The human-machine dialogue function is realized by the single-chip AT89C51RC. This allows the DSP system to appropriately reduce the amount of interruption and focus on real-time detection, so it can also leave some resources for system functions The expansion and perfection of the product facilitates the upgrade and continuous development of a product series.Fourth, the intelligent dual-frequency metal detector adopts multi-channel digital frequency synthesis technology DDS, which makes it easier to achieve synchronization between signals while ensuring high accuracy. The frequency and phase of each signal can be flexibly changed through the program. Fifth, the multi-channel full-wave phase-sensitive phase detection technology realizes signal demodulation. Sixth, the software design fully adopts the modular design concept, which makes the system more logical, and facilitates the maintenance and transplantation of the software. Seventh, the intelligent dual-frequency metal detector has designed a self-learning algorithm to track the phase of different detection objects and set the system parameters by itself. Eighth, a good man-machine dialogue system, parameter keyboard input and LCD liquid crystal display are designed. Improve the operability and readability of the system. Ninth, the intelligent dual-frequency metal detector has a product memory function, which can record a variety of product testing parameters. Ten is the stainless steel frame shell and related anti-interference measures.