| 摘要 |
FIELD: radio-measuring equipment engineering. ^ SUBSTANCE: device has thermo-converter, signals from which are sent to inputs of four electronic keys. Onto control inputs of keys impulses from outputs of displacement register are sent. To informational input of displacement register impulses from means for dividing frequency in four are sent, and on step input - signal from impulse generator. From outputs of electronic keys signals are sent onto inputs of two low frequency amplifiers, on outputs of which amplified bipolar signals are formed. Then signals are sent to inputs of two pass-band filters, after that they are converted to direct current in two synchronous detectors and are summed by adder. ^ EFFECT: higher sensitivity of measuring device, as well as such a ratio of signal/noise, which positively affects measurements precision. ^ 2 dwg |
