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MarkL

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Reply with quote  #16 
Cant you repurpose standard old accelerometers with the wiCare system as well?
ukvibes

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Reply with quote  #17 
Quote:
Originally Posted by MarkL
Cant you repurpose standard old accelerometers with the care system as well?


No idea! There is a tach with its own node in the box so I presume they can put in other signals? Might be a power issue though?
Walt Strong

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Reply with quote  #18 
"Cant you repurpose standard old accelerometers with the care system as well?"

According to the specs they use low voltage (5V?) piezo accelerometer to keep the node power demand low. My guess is that standard piezo accelerometers with 18-24V excitation would have a higher power demand. The other issue might be the connection between accelerometer and node that sits on top. Are they being sold to Canada and USA?

Walt
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Reply with quote  #19 
Quote:
Originally Posted by Walt Strong
"Cant you repurpose standard old accelerometers with the care system as well?"

According to the specs they use low voltage (5V?) piezo accelerometer to keep the node power demand low. My guess is that standard piezo accelerometers with 18-24V excitation would have a higher power demand. The other issue might be the connection between accelerometer and node that sits on top. Are they being sold to Canada and USA?

Walt

Indeed I think that the wi-care system is just a box with a microcontroller and a radio that is plugged to a standard piezo accelerometer.

The datasheets that I've seen show a bias voltage of 10-12V: http://www.wirelessvibration.eu/contenus/fichiers/TRANSMITTER-Technical-Data-Sheet.pdf

The following video (starting at 5:49) shows that one can fit the box to any accelerometer:



RustyCas

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Reply with quote  #20 
“I explained it’s purpose was to prevent an incident worthy of the local evening news, if he wanted early warning of failure he would need a different system.”

That’s a very good way to express that idea. I may have to borrow that!

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RustyCas

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Reply with quote  #21 
Wow. That Wi-care system looks impressive. If the cost per sensor is reasonable, looks like it might be a winner. Going to have to check it out.
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MarkL

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Reply with quote  #22 
Rusty, i spoke to them in The IMVAC Belgium back in June and they were in the process of launching a triaxial version but the standard version was working out around €250 per point if I recall, forget the subscription and gateway costs but they had a reasonable looking product, the guys who sell it are Emerson agents in Belgium.

Some more videos of the product.

https://www.youtube.com/channel/UCQ-ne_q6kz9M53TB9KZfbww/videos
Curran919

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Reply with quote  #23 
The guys who make this are also the guys who distribute the iris MA camera in Europe. When they gave us a demo, they were eager to talk about this product. I forwarded them to my boss who is in charge of our 'digital solutions' and he added it to the pile of dozens of apparently identical systems that he has investigated. He seems pretty jaded with any of these at the moment. Usually lots of promises and not much stability. It may be worth holding out for two years more and waiting for the losers to stop marketing before trying to pick a long term solution. I have had two smart watches in a row go dead on me because the companies got bought up and stopped support. I suspect the same will happen here and I don't want that happening to my wireless sensors as well.
OLi

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Reply with quote  #24 
Shortcut addicted may be positively surprised in the analysis view! If you come from MT-MHM addiction that is.
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Walt Strong

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Reply with quote  #25 
Mark,
I guess you are referring to this video:


A good one for my 7-year old grandson! He likes robots!

Walt
MarkL

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Reply with quote  #26 
Hi Walt,
Yes I think that's them
MarkL

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Reply with quote  #27 
Hi Walt,
Yes I think that's them
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