how to create a pass fail criteria

[Bernd R.]

After visually analyzing a particle i.e. its area I need to decide if the particle passes or fails the inspections. How do I create a pass fail criteria after "Particle Analysis" in LabView? Thanks

[Joe_H]

I'm not sure what type of data you are taking but just simple data pass fail is not very hard at all.Please be more specific as to what type of data it is and which version of labview you are using.
Attached is a very crude pass fail analysis

[Joe_H]

bu the way your last name is no pichler is it. just checking because we use to have a guy that worked here named bernd pichler.
just checking

[Enrique]

Bernd R.;

It is difficult to tell you with certainty how you should go about your application based on the limited information you provided. My answer is more general.

You need to come up with the criteria. You are calculating the area of a particle. Let say different subjects (i.e. particles) will have different areas. You need to establish a tolerance within which the result is acceptable. It can be as follow: on average, you know the area is 10 (square centimeters, inches, etc.) An area of 9.5 may be too small and 10.5 too big. You can set your thresholds in 9.6 and 10.4. Therefore, you will reject anything with an area below 9.6 or above 10.4.

I hope this is of help.

Regards;
Enrique Vargas

[Bernd R.]

Thank you for your answers. My application has to tell me if the value is too high or too low. I have a problem wiring the pass/fail and the chart, which should plot the area and the circularity factor in real time. Attached is my VI.
No my last name is not Pichler. I'm Bernd Reip and I'm writing my thesis in California.

[Joe_H]

Here is a VI that will demonstrate what you might consider doing.OH buy the way the guy I was talking about is doing research now at UC davis. I hope this will help you out. I would also be interested in other comments as well.

Joe

[Bernd R.]

Hey Joe, that was helpful. I just had to connect both pass/fail to one "Array Max & Min", because I wanted to know if ONE value is below or above min max. Your VI chooses the lowest and highest from a cluster of values and compares the lowest with min and the highest with max. I just started with LabView so I appreciate your help. I'm working at a company in the SF bay area, I came from Germany last August.

[Joe_H]

Glad I could help.
you might want to consider buying the book called labview for everyone second edition

[Joe_H]

Glad I could help.
you might want to consider buying the book called labview for everyone second edition