True and false identification device of bullion jewelry

Abstract

A device for identifying gold and silver jewellery is disclosed that includes a beam balance and an opening syringe. The syringe is connected with conduit and gripper, a pallet for loading water is hung at the two ends of the crossbeam of beam balance, two hooks which could hang jewellery are mounted on the right side of the support bracket, the distance from the hook to the support bracket based on the ratio of the distance from the left pallet to the support bracket equals with the ratio between the water density and the gold or silver density. Then balanced relation of unequal-arm lever is adopted to identify the jewellery with the proportional relation of weight between the gold or silver and water with the same volume. Without damage of jewellery, it can identify the jewellery correctly by limited operations.

Description

1. Technical field

[0001] The invention relates to a device for authenticating jewelry, in particular to a device which can more accurately identify the authenticity of gold and silver jewelry without destroying the jewelry. 2. Background technology

[0002] At present, the known methods for identifying whether jewelry is made of real gold or silver usually use some physical or chemical methods, which are generally more complicated and often damage the jewelry. With methods such as a touchstone, only the surface of the jewelry can be tested to see if it is made of real gold. Other chemical methods also need to take a small amount of samples for testing, often causing damage to jewelry. 3. Contents of the invention

[0003] The object of the present invention is to provide a device for authenticating gold and silver jewellery, especially a device that can more accurately identify authenticity of the jewellery, without destroying the jewellery.

[0004] The device for disc...

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