Calorimetric high frequency - power measuring instrument with dynamic measuring device and a constant temperature and power loss in the calorimetric bridge

摘要

when a high-frequency power with kalorimetrischer bridge, the effects of differential warming within a kalorimetrischen bridge reduced by the bridge first externally heated and the resulting temperature is controlled. the bridge is also internally by an amount of heat, in accordance with the input power, which is to be measured, changes.a konstantleistungsschaltung speaks on the display of the measured performance, and is effective to the sum of the measured output and the gleichtaktleistung at a constant value, a vollausschlagsmessung corresponds to. this eliminates internal thermal transitions in the bridge, the response time period.the operation of the integrationsausgangssignals for measurements of small signals to enable the closer to zero, the input signal is periodically, e.g., once per second, 10 times per second, or at the beginning of each measurement, are removed. the bridge is a separate abtast - and keep - steuerschleife calibrated.