06-29-2017 08:08 AM - edited 06-29-2017 08:09 AM
@mods ... perhaps someone can move these two posts here
http://forums.ni.com/t5/LabVIEW/Beginner-at-LabView-Load-Cell-Force-Measurement/m-p/3652598#M1026003
http://forums.ni.com/t5/LabVIEW/Beginner-at-LabView-Load-Cell-Force-Measurement/m-p/3652617#M1026008
thx
EDIT:
sorry .. wrong windows (now i am a real good example)
can't delete my post
06-29-2017 08:11 AM
@mods ... perhaps someone can move these two posts here
http://forums.ni.com/t5/LabVIEW/Beginner-at-LabView-Load-Cell-Force-Measurement/m-p/3652598#M1026003
http://forums.ni.com/t5/LabVIEW/Beginner-at-LabView-Load-Cell-Force-Measurement/m-p/3652617#M1026008
thx
NOTE:
sorry .. posted this in the wrong thread, perhaps my post can be deleted there as well
http://forums.ni.com/t5/LabVIEW/Beginner-at-LabView-Load-Cell-Force-Measurement/m-p/3652619#M1026009
06-29-2017 08:14 AM
Both threads have now been merged into a single thread.
06-30-2017 05:16 AM
Hi gerdw,
I have sent you a actual vi for the application i need to perform, i have to acquire signal for Strain gauge, load cell and lvdt together, here i was using a usb 6211 DAQ card
Load cell capacity is 200kN
here is was using a signal conditioner of output signal range 0-10V
how can i acquire a signal?
do i have to use RSE or NRSE mode for input configuration?
How can i acquire in terms of kN, microstains and LVDT in millimeter
is that more data i need to acquire a signal for strain and load cell?
Here i sent you a actual.vi and also i have attached a image file of the previous version using 8 channel analyse it.
if there is any modifications needed reply back.
Thanks in advance,
Regards,
Dinesh
06-30-2017 06:05 AM
Here i have made a model vi to calculate a strain is that correct method? explain me
06-30-2017 06:19 AM - edited 06-30-2017 06:20 AM
Hi Dinesh,
Here i have made a model vi to calculate a strain is that correct method?
This VI is wrong/questionable/buggy in so many ways - no, it's not "correct"!
explain me
Why should we "explain" YOUR VI to YOU?
If you are unclear about functions: read their help!
Just one note: using this function to convert voltage values to strain is a good idea. But unless you use all those default parameters used for conversion you should actually wire them! (And I also wonder about using this function on different datatypes - and all of them are showing coercion dots…)
06-30-2017 07:37 AM
now i have remodified it correct me if it is wrong or if it is true why i was having it in a negative values is that a default values i can get? and to convert it into a microsrain is that correct method get multiplied with 10^6.
Thanks in advance,
Regards,
Dinesh
06-30-2017 07:53 AM
Hi Dinesh,
correct me if it is wrong or if it is true
I cannot comment on the values you use in your calculation - you get them from your setup/datasheets. All I can say is: you didn't wire Vex…
why i was having it in a negative values
Well, I don't know which values you are measuring. So I cannot check for any "negative values" you receive…
Why do you need to convert data to DDT and use SplitSignal when there is a simple IndexArray function?
08-12-2017 02:05 AM
Hi gerdw,
I was measuring a Strain using foil strain gauge it has max strain capacity of 1500 microstrains,
G.F 1.9-2.2, Rg is 120+0.5ohms and excitation voltage is 10v here my doubt is if i do a compression how much strain it will cause in terms of mv/V here in the data sheet they didn't provide anything about output in terms of voltage?
08-12-2017 03:32 AM