piston accumulator position transducer
piston accumulator position transducer
(OP)
My google results are not helping me to much on my quest.
I have seen in OEM (Parker) lititure about using an ultrasonic transducer to measure piston position, however I caan not find a make/brand for such a device.
My desire is to measure the piston position over the accumluator's bore for one in a 2000psi fyrquil hydralic system. the evioroment will be severe and I need at least 5 year expected life.
I have seen the position monitioring that use an LVDT rod attached to the piston with the core sliding through where the gas charging valve would have been...this will not work since I do not have the space available.
I could also use a transducer that attached magnet to piston and used external hall effect transducer
thanks
I have seen in OEM (Parker) lititure about using an ultrasonic transducer to measure piston position, however I caan not find a make/brand for such a device.
My desire is to measure the piston position over the accumluator's bore for one in a 2000psi fyrquil hydralic system. the evioroment will be severe and I need at least 5 year expected life.
I have seen the position monitioring that use an LVDT rod attached to the piston with the core sliding through where the gas charging valve would have been...this will not work since I do not have the space available.
I could also use a transducer that attached magnet to piston and used external hall effect transducer
thanks





RE: piston accumulator position transducer
We use this type for cylinder piston position:-
http://w
Here is a typical manual for one:-
ht
desertfox
RE: piston accumulator position transducer
RE: piston accumulator position transducer
Ah I see your problem, we have rod type pistons and we hollow out the piston rod with a blind hole so that the probe inserts into it and as you say we attach the magnet to the piston to register travel.
I'll dig around and see if I can find something
RE: piston accumulator position transducer
RE: piston accumulator position transducer
RE: piston accumulator position transducer
RE: piston accumulator position transducer
I just got off the phone with Hydac. Their European catoluge also offers this option. the US engineer was aware, but has never seen this option. hoping they maight be able, but I'm still searching.
RE: piston accumulator position transducer
RE: piston accumulator position transducer
RE: piston accumulator position transducer
after sitting down and doing the piston travel calcs for what I would call alarm conditions, using the ultrasonic position switches strapped to the side would provide similair assurance of accumulator health
I have presented this ideal of continous monitoring verses periodical isolate, drain, and check charge to the industry which I work and to date no one else sees the benifit. so I'm not sure If I will have the backing from my current customer to install
RE: piston accumulator position transducer
Ed Danzer
www.danzcoinc.com
www.dehyds.com