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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This is all real gold on sapphire substrate! Could the epoxy still have good conductivity in the several GHz and microwave frequency?
HP 8481A Power Sensor: why are they all blown?
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. Note the capacity values — measures: Save my name, email, and website in this browser for the next time I comment.
This site uses Akismet to reduce spam. All you need is a steady hand! Maybe pure indium solder could ease this phenomenon. Absolutely, conductive silver h is also used by in industrial production, fo GHz purposes. I had experience that the gold on sapphire substrate was totally dissolved by normal Sn-Pb solder.
Never tried to use indium on sapphire substrate only used if for contacting ceramics-supraconductors. E-solder or other type of silver conductive glue may work for some few years on such substrate and geometry.
I have no idea! I just purchased some pure indium and would begin experiment several days later. Will try to attach a SMD with some conductive epoxy.
Silver paste solder is an option? Quite some detail about this sensor can be found in the HP Journal, edition pages 19ff.
HP A Power Sensor: why are they all blown? | SimonsDialogs
Your email address will not be published. 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.
Notify me of new posts by email. Still, there are many sensors around that are blown — why do so many people connect them to 0. Learn how your comment data is processed.
Keysight Technologies (Agilent HP) A used or new for sale at used-line
Good idea to bypass one of the thermocouples. There is says that the sensor can withstand mW power, and even 0. The conductive epoxy I can recommend np E-Solderit is not cheap, but if you keep it in the fridge not freezer it will keep well for a long time. Leave a Reply Cancel reply Your email address will not be published. Notify me of follow-up comments by email.
It appeared 8481aa the market aboutand still today, these devices are very much thought after. SimonsDialogs — A wild collection of random thoughts, observations and learnings. I found there are four screws.