No chemicals are used during the analysis, no mechanical damage occurs, and testing is possible through plastic cases and numismatic packages. Electromagnetic waves penetrate deep into the sample material, and the plating, surface features or coating have minimal impact on the measurement.
PMV offers several sensor sizes used depending on the size of the sample being tested. The largest sensor is built into the device and is ideal for larger objects like 1 oz coins and bars. Wands are used to measure smaller objects. The large wand is ideal for coins weighing between 1/4 and 1 oz. A small wand serves for smaller samples, such as 1-gram bars, CombiBars, 1/10 oz coins, and so on.
The new bullion sensor can penetrate the deepest and can analyze gold and silver objects up to a depth of 2 to 4 mm. It is suitable for fast testing of bars and bullions from all sides of the sample.