TEST METHOD OF PASSIVE FOUR-POLE DEVICES AND PANORAMIC METRE FOR ITS IMPLEMENTATION Russian patent published in 2012 - IPC G01R27/04 

FIELD: electricity.

SUBSTANCE: method consists in setting of the required power of reference signal supplied to input of four-pole device and monitoring of powers of signals reflected from input of four-pole device and passed through it. New feature of the method is monitoring of power dissipated in four-pole device (P_d), determined as power difference (P_i) of incident signal and sum of powers (P_r and P_passed) reflected from its input and passed through it: P_d=P_i-(P_r+P_passed). Proposed metre of transmission and reflection coefficient module allows measuring additional parameter, and namely absolute (P_d) or standardised (P_d/P_i) dissipation power in four-pole device.

EFFECT: obtaining complete information during the test by measuring additional value of dissipated power in four-pole device, and obtaining the possibility of minimising dissipation power at adjustment stage, which improves operating reliability of four-pole device.

2 cl, 2 dwg