Component content analyzer for precious metal and rare metal
By combining multi-frequency impedance and conductivity detection modules, the problem of existing equipment being unable to accurately identify rare metals is solved, enabling low-cost, portable, and radiation-free multi-metal content analysis, suitable for rapid detection and pricing in various scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 叶风国
- Filing Date
- 2026-03-19
- Publication Date
- 2026-05-12
AI Technical Summary
Existing metal composition detection equipment is expensive, poses radiation risks, and is bulky, making it unsuitable for mobile recycling and outdoor testing needs. Furthermore, traditional equipment cannot accurately identify rare metals with similar impedance characteristics, such as tungsten, molybdenum, titanium, and nickel, resulting in a narrow detection range and low accuracy.
The device employs a dual-module approach combining multi-frequency impedance detection and conductivity detection, along with data comparison using a standard database. This enables qualitative identification and semi-quantitative analysis of the content of metals such as gold, silver, tungsten, molybdenum, nickel, and titanium. The equipment is portable, handheld, and costs less than 200 yuan. It also features radiation-free and non-destructive testing.
It enables rapid and accurate detection of six high-value metals with an error of no more than 5%, is applicable to multiple scenarios, is low in cost, and is suitable for rapid detection and pricing at various metal recycling sites.
Smart Images

Figure CN122016942A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of metal analyzers, and particularly to an analyzer for analyzing the content of precious and rare metal components. Background Technology
[0002] Currently, the mainstream metal composition detection equipment on the market is the X-ray fluorescence spectrometer. This type of equipment is expensive, poses radiation risks, and is bulky, making it unsuitable for mobile recycling and outdoor testing scenarios. Traditional single conductivity meters can only distinguish metals with significant differences in conductivity, failing to accurately identify rare metals such as tungsten, molybdenum, titanium, and nickel, which have similar impedance characteristics. Their narrow detection range and low accuracy make them unsuitable for practical recycling, sorting, and pricing needs. To address the shortcomings of existing technologies, this invention provides a low-cost, radiation-free, portable, multi-metal compatible composition analyzer, expanding the detection range and improving detection accuracy and practicality. Summary of the Invention
[0003] This invention discloses a low-cost component content analyzer for precious and rare metals. Through the collaborative operation of multi-frequency impedance detection and conductivity detection modules, it can achieve rapid qualitative identification and semi-quantitative analysis of the component content of six high-value metals: gold, silver, tungsten, molybdenum, nickel, and titanium. The content detection error is no more than 5%, the total hardware cost is less than 200 yuan, it is radiation-free, non-destructive testing, portable and handheld, and suitable for rapid on-site testing and pricing of various metal recycling.
[0004] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows:
[0005] An analyzer for analyzing the content of precious and rare metals is characterized by comprising: an analyzer body, a main control unit, a multi-frequency impedance detection unit, a conductivity detection unit, a display unit, and a power supply unit.
[0006] The main control unit is electrically connected to the multi-frequency impedance detection unit, conductivity detection unit, display unit, and power supply unit.
[0007] Qualitative identification and semi-quantitative analysis of the content of six metals—gold, silver, tungsten, molybdenum, nickel, and titanium—are achieved through multi-frequency impedance and conductivity composite detection.
[0008] As an improvement, the multi-frequency impedance detection unit and the conductivity detection unit form a complementary detection structure, which together enhances the accuracy and detection range of metal identification.
[0009] As an improvement, the main control unit has a built-in standard impedance database and conductivity database for gold, silver, tungsten, molybdenum, nickel, and titanium, which are used to realize automatic comparison of detection data and rapid identification of metal types.
[0010] As an improvement, the analyzer is radiation-free and handheld.
[0011] The hardware cost of the analyzer itself is less than 200 yuan.
[0012] As an improvement, the analyzer body has an error of no more than 5% in detecting the content of metal components.
[0013] The main control unit, as the core control module, is electrically connected to the multi-frequency impedance detection unit, conductivity detection unit, display unit, button unit, and power supply unit. During the detection process, the multi-frequency impedance detection unit collects the impedance characteristic signals of the metal under test at different frequencies, while the conductivity detection unit simultaneously collects the conductivity parameters of the metal under test. Both sets of data are transmitted to the main control unit for comparison and calculation with the built-in standard database to determine the metal type and calculate its content. The results are then output to the display unit in real time. The multi-frequency impedance detection unit is used to distinguish metals with similar impedance and density characteristics, solving the problem that a single conductivity measurement cannot identify rare metals such as tungsten, titanium, and molybdenum. The conductivity detection unit is used to quickly identify precious metals such as gold and silver, which have significantly different conductivity characteristics. The complementary data from the two units greatly improves the detection accuracy and recognition range.
[0014] The beneficial effects of this invention are: the detection range covers six high-value metals, namely gold, silver, tungsten, molybdenum, nickel and titanium; it is multi-functional and applicable to a wide range of scenarios.
[0015] The total cost of the instrument is less than 200 yuan. It is radiation-free, non-destructive testing, requires no reagents, and does not damage the sample.
[0016] Fast detection speed, content error ≤5%, meeting the needs of rapid sorting and pricing at recycling sites;
[0017] With its handheld and portable design and built-in lithium battery for independent power supply, it can be used in outdoor, mobile recycling and other scenarios. Attached Figure Description
[0018] Figure 1 This is a perspective view of an instrument for analyzing the content of precious and rare metals according to the present invention.
[0019] Figure 2 This is a schematic diagram of a system for analyzing the content of precious and rare metals according to the present invention.
[0020] Figure 3 This is a flowchart illustrating the workflow of an analyzer for analyzing the content of precious and rare metals according to the present invention.
[0021] In the diagram: 1. Analyzer body. Detailed Implementation
[0022] To make the content of this invention easier to understand, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.
[0023] like Figures 1 to 3 As shown, a system for analyzing the content of precious and rare metal components is characterized by comprising: an analyzer body 1, a main control unit, a multi-frequency impedance detection unit, a conductivity detection unit, a display unit, and a power supply unit; the main control unit is electrically connected to the multi-frequency impedance detection unit, the conductivity detection unit, the display unit, and the power supply unit respectively.
[0024] Qualitative identification and semi-quantitative analysis of the content of six metals—gold, silver, tungsten, molybdenum, nickel, and titanium—are achieved through multi-frequency impedance and conductivity composite detection.
[0025] like Figures 1 to 3 As shown, the multi-frequency impedance detection unit and the conductivity detection unit form a complementary detection structure, jointly improving the accuracy and detection range of metal identification. The main control unit incorporates standard impedance and conductivity databases for gold, silver, tungsten, molybdenum, nickel, and titanium, enabling automatic comparison of detection data and rapid identification of metal types. The analyzer body 1 is radiation-free and portable. The hardware cost of the analyzer is less than 200 yuan. The analyzer body 1 has an error of no more than 5% in detecting metal content.
[0026] The main control unit, as the core control module, is electrically connected to the multi-frequency impedance detection unit, conductivity detection unit, display unit, button unit, and power supply unit. During the detection process, the multi-frequency impedance detection unit collects the impedance characteristic signals of the metal under test at different frequencies, while the conductivity detection unit simultaneously collects the conductivity parameters of the metal under test. Both sets of data are transmitted to the main control unit for comparison and calculation with the built-in standard database to determine the metal type and calculate its content. The results are then output to the display unit in real time. The multi-frequency impedance detection unit is used to distinguish metals with similar impedance and density characteristics, solving the problem that a single conductivity measurement cannot identify rare metals such as tungsten, titanium, and molybdenum. The conductivity detection unit is used to quickly identify precious metals such as gold and silver, which have significantly different conductivity characteristics. The complementary data from the two units greatly improves the detection accuracy and recognition range.
[0027] In a specific embodiment of the precious and rare metal composition analyzer of the present invention, the entire device adopts a handheld portable structure, and the power supply unit is a rechargeable lithium battery to provide a stable power supply for each unit. The detection probes of the multi-frequency impedance detection unit and the conductivity detection unit are integrated at the front end of the device, and data acquisition can be completed by placing the probes against the surface of the metal to be tested. The main control unit has built-in standard multi-frequency impedance databases and standard conductivity databases for six metals: gold, silver, tungsten, molybdenum, nickel, and titanium. During detection, the multi-frequency impedance detection unit outputs multiple sets of frequency signals to obtain the impedance characteristic values of the metal to be tested. Simultaneously, the conductivity detection unit collects the conductivity values of the metal to be tested. After the two sets of data are transmitted to the main control unit, the metal type is quickly determined and the percentage of the corresponding metal content is calculated through algorithm comparison and calculation. Finally, the metal name, content, error range and other information are clearly displayed on the display unit. According to actual testing, the analyzer has a stable error control of less than 5% for the detection of the content of the above six metals. The hardware cost of the whole machine is controlled within 200 yuan. Moreover, it is radiation-free, requires no chemical reagents, and does not damage the sample, thus realizing non-destructive, fast, low-cost and high-precision multi-metal detection.
[0028] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A system for analyzing the content of precious and rare metal components, characterized in that, include: The analyzer body consists of a main control unit, a multi-frequency impedance detection unit, a conductivity detection unit, a display unit, and a power supply unit. The main control unit is electrically connected to the multi-frequency impedance detection unit, conductivity detection unit, display unit, and power supply unit.
2. The system for analyzing the content of precious and rare metal components according to claim 1, characterized in that, The multi-frequency impedance detection unit and the conductivity detection unit form a complementary detection structure, which together improves the accuracy and detection range of metal identification.
3. The system for analyzing the content of precious and rare metal components according to claim 2, characterized in that, The main control unit has a built-in standard impedance database and conductivity database for gold, silver, tungsten, molybdenum, nickel, and titanium, which are used to realize automatic comparison of detection data and rapid identification of metal types.
4. The analyzer for analyzing the content of precious and rare metals according to claim 1, characterized in that, The analyzer body 1 is radiation-free and can be easily held in the hand.
5. The analyzer for analyzing the content of precious and rare metals according to claim 4, characterized in that, The analyzer body 1 has an error of no more than 5% in detecting the content of metal components.