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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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 usable for some test purposes. Maybe pure indium solder could ease this phenomenon. Will try to attach a SMD with some conductive epoxy. This is all real gold on sapphire substrate!

Still, there are 4881a sensors around that are blown — why do so many people connect them to 0.


I just purchased 8481q pure indium and would begin experiment several days later. Leave a Reply Cancel reply Your email address will not be published.

Absolutely, conductive silver epoxy is also used by in industrial production, fo GHz purposes. Quite some detail about this sensor can be found in the HP Journal, edition pages 19ff.

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

Save my name, email, and website in this browser for the next time I comment. E-solder or other type of silver conductive glue may work for some few years on such substrate and geometry. SimonsDialogs — A wild collection of random thoughts, 841a and learnings. I found there are four screws.

Good idea to bypass one of the 4881a. It appeared on the market aboutand still today, these devices are very much thought after. Silver paste solder is an option? Notify me of new posts by email.

A Power Sensor [Discontinued] | Keysight (formerly Agilent’s Electronic Measurement)

I had experience that the gold on sapphire substrate was totally dissolved by normal Sn-Pb solder. All you need is a steady hand! Note the capacity values — measures: 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.


This site uses Akismet to reduce spam. 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.

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

Notify me of follow-up comments by email. Could the epoxy still have good conductivity in the several GHz and microwave frequency? I have no idea! Never tried to use indium on sapphire substrate only used if for contacting ceramics-supraconductors. Your email address will not be published. Up how your comment data is processed. There is says that the sensor can withstand mW power, and even 0.