The importance of the use of metals in all areas of life is obvious to everyone, and no industrial activity can be found without the direct and indirect involvement of metals. The emergence and progress of the industrial industries of transportation (land-sea-air), road and construction, aerospace, military, energy production and distribution, road and construction and perhaps all industries are unimaginable without the use of metals. Among the parameters of each metal piece, apart from the chemical structure and physical shape, the hardness pattern of the metal parameter is very important. In general, the resistance of an object against abrasive or abrasive chemistry is an indicator of the hardness of that object. A knife, for example, is worthless without a certain hardness on the cutting edge, because otherwise it will either slow down quickly or break at the first push. The metal structures of the building and the high-pressure gas transmission pipes must all have a suitable hardness pattern in order to prevent their tearing and breakage. These examples are endless, and there is as much discussion about their hardness as the use of metals. In the Lib method, the velocity of the projectile before and after impact is measured near the impact site. This speed measurement is done by a small permanent magnet that is installed inside the projectile and induces a voltage corresponding to the speed of the projectile to the coil that is installed at the tip of the projectile (Impact Device) and the measurement of said voltage is done...