RVDT Replacement
RVDT Replacement
(OP)
Hi all,
We have a unit in on which the RVDT is broken and Woodward MPC no longer manufacture the unit. Its a 26 VRMS 400 Hz single channel sensor that measures the angular position of the shaft on a throttle valve, that rotates through a range of 90 degrees. I've gone to nearly every OEM I can find to try and get a suitable replacement but none seem to do 26 VRMS sensors. I'm no electrical engineer so my knowledge on this is pretty limited. Could someone please help with suggestions of where to go?!
Thanks
We have a unit in on which the RVDT is broken and Woodward MPC no longer manufacture the unit. Its a 26 VRMS 400 Hz single channel sensor that measures the angular position of the shaft on a throttle valve, that rotates through a range of 90 degrees. I've gone to nearly every OEM I can find to try and get a suitable replacement but none seem to do 26 VRMS sensors. I'm no electrical engineer so my knowledge on this is pretty limited. Could someone please help with suggestions of where to go?!
Thanks





RE: RVDT Replacement
I would think the 400hz would be the hardest to match. I noticed Kavlico and Moog offer 26v 400hz devices,I just googled
"26 vrms 400 hz rvdt" and got catologes from moog showing several designs specific for aviation
RE: RVDT Replacement
A good reference (almost the bible on this field) is the 'Synchro / Resolver Conversion' handbook by DDC. It includes a few pages of info on RVDT.
"Since RVDT/LVDTs are not standardized in their characteristics, as are synchros and resolvers, the converters will have to be adjusted for input gain to accommodate the full scale voltage of the particular type transducer."
You could also check the input circuit card to see what flexibility it offers.
What is the application? The reason I ask is that using an RVDT as a throttle shaft position sensor (overkill), and your field (Aerospace), raises other issues about making such substitutions. You're probably already aware of such issues, but I think it's worth double-checking just to be safe.
RE: RVDT Replacement
RE: RVDT Replacement
I even used an inclinometer once for a temporary measurement. Taped it onto the arm and took three flexible wires to the computer interface. Simple, again. http
Gunnar Englund
www.gke.org
--------------------------------------
Half full - Half empty? I don't mind. It's what in it that counts.
RE: RVDT Replacement
Dan - Owner

http://www.Hi-TecDesigns.com
RE: RVDT Replacement
Gunnar Englund
www.gke.org
--------------------------------------
Half full - Half empty? I don't mind. It's what in it that counts.
RE: RVDT Replacement
RE: RVDT Replacement
Given that it's for an industrial application, can you fix the old one?
RE: RVDT Replacement
5 years sounds about right...
Dan - Owner

http://www.Hi-TecDesigns.com
RE: RVDT Replacement
RE: RVDT Replacement
http://www.rdpe.com/us/index.htm
RE: RVDT Replacement
RE: RVDT Replacement
£9,500
RE: RVDT Replacement
RE: RVDT Replacement
Dan - Owner

http://www.Hi-TecDesigns.com
RE: RVDT Replacement
Maybe...
RE: RVDT Replacement
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RE: RVDT Replacement
RE: RVDT Replacement
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