FIELD: physics.
SUBSTANCE: two automatic attenuators are further placed at the input and output of the apparatus, said attenuators being simultaneously controlled by an output signal from a comparator unit, which is generated as a result of comparing the signal from the output of the input attenuator and the signal from a reference voltage unit. There are also two display units indicating correct tuning of the attenuators, which enables to improve functionality of the apparatus by using automatic tuning with indication of its operation, and increase its universality with respect to external devices by enabling operation of the apparatus in a wide range of input signal. Equality of the values of the input and output signals is ensured and the possibility of using manual control of tuning the apparatus is also maintained by using an additional two-way switch.
EFFECT: improved functionality of the apparatus and high universality thereof with respect to external devices.
1 dwg
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