True and false identification device of bullion jewelry

A jewelry, true and false technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve problems such as jewelry damage

Inactive Publication Date: 2007-05-30
崇明县新光中学
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Other chemical methods also need to take a small amount of samples for testing, often causing damage to jewelry

Method used

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  • True and false identification device of bullion jewelry

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Embodiment Construction

[0010] Further description will be made below with reference to the accompanying drawings and embodiments.

[0011] The device for discriminating the authenticity of gold and silver jewelry of the present invention comprises a lever balance and a large syringe, wherein: the large syringe 7 is connected with conduit 8 and clip 9, and the lever balance includes a crossbeam 1, a support 4, Tray 2 and tray 3, a tray 2 and a tray 3 that can hold water are hung on both ends of the beam 1, and two small hooks 5 and 6 that can hang jewelry are installed on the right side of the bracket 4, and the small hooks are connected to the bracket. The distance is determined according to the ratio of the distance from the left end tray 2 to the support 4 which is equal to the ratio of the density value of water to the density value of gold or silver. We know that the density of water is 1g / cm 3 , the density of gold is 19.3g / cm 3 , the density of silver is 10.5g / cm 3 , here, the hook 5 for ha...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N9/36G01N9/00
Inventor 杜永斌郁春香杜逸华
Owner 崇明县新光中学
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