WebKee testers (and similar) use direct conductivity measurement. Sigma machine (which includes the Sigma Metalytic devices) use eddy current testing. Essentially, a magnetic field induces current in the specimen. The field is then measure and compared to known values. 24k gold is different than 22k which is different than .999 pure silver etc. WebMoreover, two sensors in the Precious Metals Verifier PRO from Sigma Metalytics allow you to measure the purity of precious metals, even if they're encased in secure plastic slabs. …
Sigma Metalytics Precious Metal Verifier - ZAK JEWELRY TOOLS
WebAug 16, 2024 · Unlike in other testing methods, plating and surface features do not significantly impact the unit ‘s ability to measure the underlying metal. Using electromagnetic waves that penetrate profoundly into the coin or bar, plating and surface features are largely ignored, and the main body of metallic assessed. WebMar 3, 2024 · electromagnetic radiation, in classical physics, the flow of energy at the universal speed of light through free space or through a material medium in the form of the electric and magnetic fields that make up electromagnetic waves such as radio waves, visible light, and gamma rays. In such a wave, time-varying electric and magnetic fields … on target portable services
Does anyone know of an alternative to the Sigma …
WebPrecious Metal Tester. Dongguan Hongtuo Instrument Co., Ltd. Power: Electronic Usage: Universal Testing Machine Power supply: Default as European standard AC 100V - 240V OEM service provided: Yes Density resolution: 0.001 g/cm3 Maximum weight: 900g / 1200g Minimum weight: 0.01g Interface: RS - 232 warranty: two years;life-long maintenance … WebS$1,800 Condition: Like new The Sigma Metalytics Tester operates by measuring the bulk metal comprising a bar or coin and alerting you of its purity percentage. Using … WebThe Sigma Metalytics Verifier unit is able to authenticate and penetrate 2 mm or more in to the coins and bars within seconds, thus immediately … on target professionals