Laserbee 1000mW LPM

[Murudai]

[quote author=wannaburn link=1214556044/0#1 date=1214557114]
What part of the graphing is trickey? I havent experianced any difficulty in this area, and the printout pretty much sums it up. I have noticed that the graph will fluctuate with minor movements of the beam, but aside from that it rides out pretty smooth. I would be interested to see the screenshots of any annomalies you might be experiancing.

Any idea how to hook this up through USB?

Mainly I noticed that sometimes with no laser shining at it the computer would read it as 997mW or something, though the actual read out would stay at 0mW. Naturally, a few 997mW readings completely mess up the average and the peak readings
[/quote]

I just figured out what the problem. I was making a graph for something, and I noticed that all the readings on the computer were deviated from the ones on the LCD.

It seems everything on the computer is exactly 3 less than anything on the LCD screen! LCD shows 220, computer shows 217, etc. LCD shows 0, computer shows 3 less than 0, which comes all the way round back to 997

Does anyone know how to use Excel (or more accurately, OpenOffice Calc, but they do the same thing) to add 3 to an entire column? Really help me when making a graph with this

 

[Bionic-Badger]

In Excel:

Assuming you have a column of values:

1) Go to a new column, but same row as the first value.
2) Click the function button (the f[sub]x[/sub])
3) Select the Sum function
4) Use "3" as one of the values
5) For the other, select a range, that being the first value of the column of measured values.

You should have a a single cell that computes a function Sum(A1 + 3) where A1 is the first measured value's location.

Now to duplicate it for the whole column:  

1) Grab the lower right corner of that summation cell you just made and stretch it down to the same height as your values column.

You're done!