FIELD: data collection systems, possible use in logging systems lowered on a cable.
SUBSTANCE: system (150) for adjusting voltage, injected into system of transmitting line, contains transmitting cable (134), having full wave resistance and full load resistance, connected at its far end. Power supply (154) is connected to transmitting line (134). Power supply (154) is made with possible receipt of incoming voltage signal (157) and with possible excitation of voltage VS of power supply based on it. Check connection block (155) is made with possible receipt of power supply current (IS) as incoming signal, and is also made with possible generation of check connection voltage (VF), which is altered by means of current IS. Set voltage block (152) is made with possible generation of practically invariable voltage (Vset), and adder (153) is made with possible summation of given voltage (Vset) and check connection voltage, to generate voltage signal (157), which directs input signal into electric power supply (154).
EFFECT: stabilization of load voltage.
3 cl, 6 dwg
Authors
Dates
2008-01-27—Published
2002-08-12—Filed