DEVICE FOR THE COUNTING OF CHIP CARDS CONTAINED IN A BATCH
In order to count chip cards when they are manufactured, it is chosen to present these chip cards in lots, edgewise, in the field of an X-radiation. A measurement is made of the differential image of attenuation of the X-radiation due to the passage of this X-radiation, on the one hand through the p...
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| creator | JUTARD ALAIN REDARCE HERVE DUPRE FRANCOIS BETEMPS MAURICE |
| description | In order to count chip cards when they are manufactured, it is chosen to present these chip cards in lots, edgewise, in the field of an X-radiation. A measurement is made of the differential image of attenuation of the X-radiation due to the passage of this X-radiation, on the one hand through the plastic card structure, which is relatively transparent to the X-radiation, and on the other hand through the metallic connection parts of the chips. In the radiological absorption image obtained, a count is made of the number of transitions of the absorption signal. It is shown that the reliability of the counting is greatly improved, as is the security of manipulation. |
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| subjects | CALCULATING COMPUTING COUNTING COUNTING MECHANISMS COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS |
| title | DEVICE FOR THE COUNTING OF CHIP CARDS CONTAINED IN A BATCH |
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