BarScreenSensor
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BarScreenSensor — for testing precious metal bars
By means of ultrasound measurement, the BarScreenSensor detects inclusions of foreign materials from a weight of approx. 50/100 grams (depending on dimensions). Counterfeits are popular with precious metal bars of this particular dimension, because they are relatively easy to produce and high profits are to be made due to the large weight of the objects. Tungsten rods are frequently inserted in the centre of gold bars. The gold layer of larger objects is very thick and cannot be penetrated by other testing methods. With the help of the BarScreenSensor, even thick objects can be permeated completely, thus avoiding major losses in value.
Ingot testing with the ultrasonic analyser from Goldanalytix
The BarScreenSensor is the most important measuring device for testing the authenticity of gold bars (and other precious metal bars). The ultrasonic measurement allows full penetration of all common ingot sizes above one ounce and detects inclusions of foreign metals with differing sound velocities.
When buying ingots, the BarScreenSensor will save a lot of trouble and prevent major losses in value. Checking their own stock gives users security and credibility with potential customers. Thus, precious metal dealers, banks and collectors can benefit from the BarScreenSensor both when buying and selling.
Ultrasonic measurement — the proven method for precious metal objects from 100 grams
The measuring principle of the BarScreenSensor is based on the ultrasonic measurement, in which the speed of sound is measured and thus the material of which the object is made is checked.
All metals in their pure form have a specific speed of sound. During the measurement, the BarScreenSensor emits an ultrasonic signal and measures the time the sound takes to return to the measuring head. If either the thickness or the speed of sound is known, the device can calculate the other property. A built-in core of, for example, tungsten (for gold) or a lead-tin alloy (for silver) would deflect the ultrasonic signal and thus significantly shorten the time between transmission and reception. Thus, the thickness or the speed of sound would not correspond to the desired value and the forgery is exposed.
BarScreenSensor — The ultrasonic device from Goldanalytix — features and benefits:
- Excellently suited for authentication of precious metal ingots, by using a precise ultrasonic measuring technique
- Applicable for bars from approx. 50/100 g
- Quick detection of foreign metal inclusions
- Full penetration of the measured objects up to a thickness of over 10 cm
- Prevents major losses in value and provides security and confidence in the purchase and sale of precious metals
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