Symmetry of pk-pk mV strain gauge time history?
Symmetry of pk-pk mV strain gauge time history?
(OP)
Does anyone have experience of the symmetry (or lack thereoff) for time history plots of the pk-pk total mV from a strain gauges?
Does a non symrmetrical, e.g strong positive bias in the total mV pk-pk time history plot, indicate a possible poor gauge reading? I do not mean a dc offset where the time history plot still looks symmetrical but is no longer centred on 0mV.
The response is not from a single mode but a number of modes.
Any Ideas?
Does a non symrmetrical, e.g strong positive bias in the total mV pk-pk time history plot, indicate a possible poor gauge reading? I do not mean a dc offset where the time history plot still looks symmetrical but is no longer centred on 0mV.
The response is not from a single mode but a number of modes.
Any Ideas?





RE: Symmetry of pk-pk mV strain gauge time history?
What's the application?
RE: Symmetry of pk-pk mV strain gauge time history?
Cheers
Greg Locock
RE: Symmetry of pk-pk mV strain gauge time history?
I havent been able to isolate a mode and a high component of direct forceing due to gas loads might possibly explain the load bias.
TTFN