HP 8481A PDF

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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Good idea to bypass one of the thermocouples. I had experience that the gold on 848a substrate was totally dissolved by normal Sn-Pb solder. Note the capacity values — measures: I have no idea! Hi Rene, to measure if the elements are defect, you need to remove the sensor element 84881a the device which is a bit tricky, because of the gold wires, etc. This is all real gold on sapphire substrate! Absolutely, conductive silver epoxy is also used by in industrial production, fo GHz purposes.


Maybe pure indium solder could ease this phenomenon. I found there are four screws.

HP A Power Sensor: why are they all blown? | SimonsDialogs

It appeared on the market aboutand still today, these devices are very much thought after. There is says that the sensor can withstand mW power, and even 0. Learn how your comment data is processed. Will try to attach a SMD with some conductive epoxy. Notify me of new posts by email.

Quite some detail about this sensor can be found in the HP Journal, edition pages 19ff. Jp tried to use indium on sapphire substrate only used if for contacting ceramics-supraconductors. I just purchased some 848a indium and would begin experiment several days later. Leave a Reply Cancel reply Your email address will not be published. Still, there are many sensors around that are blown — why do so many people connect them to 0.

Could the epoxy still have good conductivity in the several GHz and microwave frequency? This site uses Akismet to reduce spam.

HP Hewlett Packard 8481A RF Power Sensor 18ghz 50ohm

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 gone anyway, but may still be 84811a for some test purposes. E-solder or other type of silver conductive glue may work for some few years on such substrate and geometry.


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. All you need is a steady hand!

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Silver paste solder is an option? Save my name, email, and website in this browser for the next time I comment.