Up for sale is a used HP A Power Sensor as can be seen in the pictures. This item is in working condition, however, it’s sold as-is, as described. Nothing. A remarkable HP product, the HPA sensor. It appeared on the market about , and still today, these devices are very much thought. Agilent / HP A Power Sensors 10 MHz to 18 GHz, 1 uW to mW, Refurbished HP Agilent Hewlett Packard – Used Test Equipment at Test Equipment.
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HP Hewlett Packard 8481A RF Power Sensor 18ghz 50ohm
Learn how your comment data is processed. It appeared on the market aboutand still today, these devices are very 8481aa thought after. All you need is a steady hand! There is says that the sensor can withstand mW power, and even 0. Maybe if the reference is blown, and you replace it by a resistor, you could still get some readings from the power meter, with very much offset baseline, and accuracy would be 4881a anyway, but may still be usable for some test purposes. Notify me of follow-up comments by email.
Quite some detail about this sensor can be found in the HP Journal, edition pages 19ff.
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Could the epoxy still have good conductivity in the several GHz and microwave frequency? Never tried to use indium on sapphire substrate only used if for contacting ceramics-supraconductors. 8481aa
HP A Power Sensor: why are they all blown? | SimonsDialogs
The conductive epoxy I can recommend is E-Solderit is not cheap, but if you keep it in the fridge not freezer it will keep well for a long time. I just purchased some pure indium and would begin experiment np days later. Maybe pure indium solder could ease this phenomenon.
Will try to attach a SMD with some conductive epoxy. I found there are four screws. This is all real gold on sapphire substrate!
I had experience that the gold on sapphire substrate was totally dissolved by normal Sn-Pb solder. Silver paste 84881a is an option? Absolutely, conductive silver epoxy is also used by in industrial production, fo GHz purposes. Hi Rene, to measure if the elements are defect, you need to remove the sensor element from the device which is a bit tricky, because of the gold wires, etc.
Good idea to bypass one of the thermocouples. I have no idea!
E-solder or other type of silver conductive glue may work for some few years on such substrate and geometry. Note the capacity values — measures: Still, there are many sensors around that are blown — why do so many people connect them to 0.