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Characteristics
For all power measurements with instruments from the URV/NRV families, 15 power sensors in all cover the frequency range from DC to 40 GHz. Three classes of sensitivity allow direct measurement of any power between 100 pW and 30 W. A 75-W sensor is available for TV and video applications.
The calibration data memory integrated in the sensor contains all the relevant information. With the sensor plugged in, a fully calibrated meter is ready for measurements. The calibration of all sensors can be traced to the relevant standards of the Federal German Bureau of Standards. For calculating the total measurement uncertainty of the source power delivered to Z0 load the following factors have to be taken into account: mismatch uncertainty, calibration uncertainty, linearity error, meter noise, zero error, temperature effect, pulse measurement uncertainty (peak power sensors only) and measurement uncertainty of basic unit. |
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