FIELD: electricity.
SUBSTANCE: additional resistive four-armed bridge is connected by diagonal to output of connection line, to points of instrumental amplifier connection. Parametres of additional bridge are selected, which provide conditions for transfer of maximum power of useful signal to inlet of instrumental amplifier, level of noise is reduced at its inlet and outlet, and at the same time requirements are reduced to permissible scattering of parametres and stability of parametres in elements used in signal processing device.
EFFECT: reduced level of noise that occurs in process of signal transfer along communication line, improved accuracy of instrumental amplifier input circuits balancing, provision of conditions for transfer of maximum power of useful signal to input of instrumental amplifier by connection of resistive bridge.
2 cl, 3 dwg
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