This sonde https://www.olympus-ims.com/en/probes/pa/universal/
connected to https://www.eddyfi.com/fr/produit/multix
This sonde https://www.olympus-ims.com/en/probes/pa/universal/
connected to https://www.eddyfi.com/fr/produit/multix
also the first shows bunch of products, with varying specs (5, 7.5 or 10MHz just to name one)
both links are catalog pages (marketing material, not the datasheet).
you may want to move beyond looking at the catalog and getting familiar with the product details, such as installation, mounting methods, cable routing etc.
just to give you an idea, here are four screenshots from random VFD manual. they show things such as how to mount it (with clearances), how to ground it, how to wire signal line to reduce or eliminate noise (notice detail for analog signal using ferrite core), how to route cables etc.
I honestly do not find much information. 5L16-A10.
because that document is also only a catalog (just read the file name).
to install, and use some product, you need REAL manual or datasheet, not marketing material.
if you cannot find it on manufacturer's website (downloads/resources/support or similar) then you need to call them.
Thanks,
place Ferrit and the signal decreases a little, is there another method?
RTFM
what you are unsure about?
i am sure you know that this is a robot forum but - i still see no mention that robot is failing to do its job. if that was the case, you came to the right place as that would be something we could try to address here.
things other than robots could be analyzed too but, that would require more input because it is related to some equipment (NDT sensor or measurement system) which i have not seen or used before and do not know enough about. hence any further comments or replies from my side on this will depend heavily on your cooperation and description. btw you have been ignoring most of the questions. you did not explain how is the sensing system is supposed to be used. is the sensor delivered by the robot to some product sample then measurement is taken while robot is stationary? or is robot supposed to be "hand" moving the sensor over some product while sensor is collecting data? or why is there a robot at all? if the robot is causing noise, relocate robot to another room or building....
see you may have understand such things but we do not and you are not communicating them.
you say you placed ferrite... where...how... and what type? according to your product manual(s)?
signal decreases... how? what signal? is all signal attenuated or just the "noise"?
where is the sensor mounted, how long is the sensor cable, and how exactly is that cable routed?
are they are any other cables nearby? any current carrying conductors?
in first post you stated that you already checked grounding. would you care to elaborate? what criteria and measurement did you use to confirm that? which equipment was grounded? many things require external ground, not just one included in supply cable. robot system needs at least two pieces of wire for proper grounding.
is the interference observed in signal confirmed to be electromagnetic of sonic? if sonic, it is picked up by sensor. if it is electromagnetic, it may also be picked up by the cable.
the ultrasonic sensors i have seen in conjunction with robots were used to collect data while robot is moving. ultrasound signal was directed at tested product through a small jet of water. sound travels much better through water than surrounding air.
Exactly, we collect data through the sensor and a multiplex does not reproduce the signal. All this in water. But this noise signal that appears when the robot arm moves, can also be seen before it enters the water, the difference is that naturally when it is in the water the signal increases. My wish is to prevent this signal from appearing, because mixes with the collected data. I hope you understand me.
Exactly, we collect data through the sensor and a multiplex does not reproduce the signal. All this in water. But this noise signal that appears when the robot arm moves, can also be seen before it enters the water, the difference is that naturally when it is in the water the signal increases. My wish is to prevent this signal from appearing, because mixes with the collected data. I hope you understand me.
THIS is the information you should have provided at the BEGINNING. It's still not enough, but at least now we are not fumbling around in the dark.
If the signal coupling is physical, then isolating the sensor from the robot should help. You can experiment with foam padding between the sensor and the robot mounting flange.
If the coupling is electrical, you need to isolate the cables of the ultrasonic sensor from the robot cabling, and perhaps change to a shielded cable. The servo cables in the robot arm, and the motor cables running from the KRC to the robot base, all carry high-frequency servo drive signals, and hence a significant amount of EMI noise. Any low-voltage sensor cabling needs to be isolated from those drive cables as much as possible.
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