vibration sensor
vibration sensor
(OP)
sir i have 4-20ma vibraton sensor and i converted that current op into voltage(0-10v).and i give that op value into iot device advantech wise 4012e.it shows voltage output i want to convert that voltage into velocity(mm/s).give me some therotical equations and formula.my sensor sensitivity is 100mv/g.





RE: vibration sensor
x(t) = A sin ωt
Integrating...
v(t) = ωA cos ωt
a(t) = -ω2A sin ωt
This all is very basic mechanical vibrations. Do you have a mechanical engineer on your site who can help you? Mechanical resonance is not equivalent to resonating RLS circuits. I don't care what they taught you in college.
Do you understand what your gauge actually is reading? I am guessing it is acceleration.
--
JHG
RE: vibration sensor
RE: vibration sensor
It sounds like its output may be based on an "overall" reading. If so, the frequency information is lost forever.
RE: vibration sensor
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm
RE: vibration sensor
RE: vibration sensor
As I read it, the raw signal out is an option with an actual 3rd electrical connection, in addition to a 4-2- mA output.
All the 4-20 mA outputs are a version of "overall" reading.
Peak Velocity (Low Frequency) - 180 to 60k cpm (3 to 1000 Hz)
RMS Velocity - 600 to 60k cpm (10 to 1000 Hz)
RMS Acceleration - 3 to 1000 Hz) / 180 to 300k cpm 180 to 600k cpm (3 to 10k Hz)
Without detailed amplitude vs frequency information ( FFT) before being turned into an overall, I don't think there is much hope of converting acceleration into velocity, etc and etc.
RE: vibration sensor
Walt
RE: vibration sensor
Oops! Differentiating.
--
JHG