Metrology 101: Testing Linearity on Agilent E441xA Power Sensors

A representation of uncorrected power measurements made both inside of outside of the square law region of a diode.
A representation of uncorrected power measurements made both inside and outside of the square law region of a diode.

by Michael Schwartz

Today’s new high dynamic range power sensors are not built the same as the older generations of sensors. Older generations of power sensors only had a correction table for their frequency response. This was a simple number that could be easily dialed or entered into the power meter allowing the power meter / sensor to make accurate measurements. Click to read more >>

1 Comment

  1. A reader noticed the tolerances were not correct. Lower and upper limits in the table of the article have now been corrected–the online version of volume 20:3 has been updated. We apologize for the incorrect calculations and any inconvenience they may have caused.

    An Excel spreadsheet of the linearity table, with updated calculations, can be downloaded here: Power Sensor Linearity Check – Spreadsheet.

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