UG-5000 pages

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R&D: Ultrasonic Technology / Fingerprint Recognition

Description of the power Ultrasonic Generator UG-500
The device works only together with a PC (with RS-232 connection), and installed
software, described in this paper.
The software allows to control the following parameters (that are available on the
start screen)
1. Frequency of the output signal in the region 15-25kHz, with maximum
resolution of 2Hz. This signal is synthesized, using quartz generator.
2. Power between 50 and 500W (in some versions 600W).
It is possible to control the output power, using fine adjustment with the help of changing
the pulse width from 10-94% (in 2% steps). This is shown on the following picture:
t

T

Relative „pulse width“ of the control pulse is defined as follow:
PW= t / (1/2 T) x 100
Maximal power is given, if:

| in % |

t / T = 0,5 (PW= 100%)