Compare Two Waveforms

Hi There,
I would need help in comapring two signals. The Need is to compare a test signal with a reference signal and check if the amplitude of the test signal is within the limits of the reference signal with some tolerence level. Is there any automatic function to DIAdem to get this done.
Can anyone help me out on this.
Thanks,
Priya

Hi Brad,
I tried checking the example but it only gives a graphical display. I would like to compare the actual values and then report status of the test.
This would require to apply known number of time window for the complete Channel; for each time window the channel's amplitude and frequency needs to checked against reference value. If any window does not satify the limits; the test is not passed.
Do you have any kind of example for this approach?
I am thinking of using ChnTimeAreaCopy to get data information for each time window and using FFT for frequency check. I tried using ChnPeakFind for getting the peak values and find the amplidute but was not succesful. Can you help me out on this?
Thanks,
Priya

Similar Messages

Comparing two waveforms

Hi
I am having a 11801B digital sampling oscilloscope and I need to compare the waveforms of a DUT for TDR test conducted. For a good device, the waveform should be stored in pc and must be able to use it whenever needed to compare with the failure device which is obtained from the oscilloscope to calculate the time difference. So I need both the waveforms in a single graph for comparision. I tried with "save image in BMP format" for the good device waveform and "plot image" to recall the waveform for comparing with the waveform of failure device, but that doesn't worked out. I'm fairly new to labview. Could someone please suggest me how to do this. Thankyou in advance
Best Regards
Pratheek
Solved!
Go to Solution.

Don't worry about saving the images -- for this part of the process at least.
Save the array of datapoints for the good example to disk however you want too save it, and when a bad one occurs plot the array coming from the bad one on the same graph as the good exemplar.
Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps

Compare two similar objects

Do you know about any possible Java bugs with JDK update?
In my case, my code stopped working.
Here is what I have. There are two similar objects, but Object 1 has key, and Object 2 (same as Object 1) has no key. I need to compare both, and if they are equal, I need Object 1 to assign key to Object 2.
It worked before. How I can get around.
Please help me if you can.
Respectfully,
Alex

Let me change the question:
"Can we compare two objects one with key and another one without key? How?

Compare two Java Objects without Comparable / Comparator

Hi Friends,
I would like to compare two java objects (lots o attributes) without using Comparable / Comparator.
Any suggestion/sample code would be helpful.
Thanks,
Sachin

I suppose you could design another feature to compare Objects... but that would involve a design process, so asking for sample code is definitely premature. And as EJP says, what would be the point?
At least that's what I would answer if this was one of those stupid interview questions.

How can I compare two collections at the same time? (View two grid views)

I have two collections containing some of the same images. (My Nikon D70 did not put an end-of-file on some images. I recovered them into a different collection.) Now I want to display both collections side-by-side in grid view. I will select those images in the "recovered" collection that correspond to the bad images in the "main" collection, add the ratings etc, and move just these to another collection.
It is extremely frustrating to have to bounce back and forth between collections, remembering each image one by one and selecting it in the "recovered" collection. (The image names are not preserved in the "recovered" collection -- I have to go by what the image looks like.)
LightRoom allows me to compare photos in the compare view. I want to compare collections in two grid views.

CaptureTheLight,
you have ran into a situation when you have to compare two sets of images and now you're wondering how come Lightroom doesn't have such "obviously necessary" functionality? But you have to admit it, this is not such a common situation in a photographer's workflow recovers broken files and tries to compare them against themselves. I think it's a pretty specific feature you need. Still, Lightroom has enough powerful tools for editing and sorting images.
For example...
You could just put them all - "main" and "recovered" - into a single collection or into the Quick Collection. Label the entire "recovered" collection with, say, red and sort by capture time. Now you'll have everything side by side, ordered chronologically. The "recovered" images will stay next to the "main" images since their capture time will be the same, and they will also stand out since they have the red label.
Make the thumbnails bigger and set up the grid view so it tints the thumbnail cell are tinted with the label color. Now, you can go quickly through them visually checking labeled vs unlabeled.

How can i compare two excel files with different no. of records.

Hi
I am on to a small project that involves us to compare two excel files. i am able to do it but am struck up at a point. When i compare 2 different .csv files with different no. of lines i am only able to compare upto a point till when the number of lines is same in both the files.
Eg. if source file has 8 lines and target file has 12 lines. The difference is displayed only till 8 lines and the remaining 4 lines in source lines are not shown.
Can you help me in displaying those extra 4 lines in source file. I am attaching my code snippet below..
while (((strLine = br.readLine()) != null) && ((strLine1 = br1.readLine())) != null)
                 String delims = "[;,\t,,,|]";
                String[] tokens = strLine.split(delims);
                String[] tokens1 = strLine1.split(delims);
               if (tokens.length > tokens1.length)
                for (int i = 0; i < tokens.length; i++) {
                    try {
                        if (!tokens.equals(tokens1[i])) {
System.out.println(tokens[i] + "<----->" + tokens1[i]);
out.write(sno + " \t" + lineNo1 + " \t\t" + tokens[i] + "\t\t\t\t" + tokens1[i]);
out.println();
sno++;
} catch (Exception exception)
out.write(sno + " \t" + lineNo1 + " \t\t" + tokens[i] + "\t\t\t\t" + "");
out.println();
Thanks & Regards

A CSV file is not an Excel file.
But apart from that your logic makes no sense.
If the 2 files are of different sizes the files are different by definition, so further comparison isn't needed, you're done.
If you want to compare individual records, you need to compare all records from one file with all records from the other, unless the order of records is important in which case your current system might work.
That system however is overly complicated for comparing CSV files.
As you assume a single record per line, and if one can assume those records to have identical layout (so no leading or trailing whitespace in or between columns in one file that's not in the other) comparing records is simply a matter of comparing the entire lines.

Functinality to compare two material price with reference to BOM in CO

Hi All,
Is there is any functionality in Controlling which can compare the costing for two FERT materials.
or
is there is any functionality where we can compare two material price with reference to BOM in controlling
Please help me to compare the material price with reference to BOM
Regards
nandu

Hi,
You can use this report to compare two itemizations. The report compares the characteristics item number, item category, cost element, resource, material, cost center, plant/work center, cost center/activity type, operation number, BOM item, assembly indicator, and cost component.
You can access this report as follows:
Accounting ® Controlling ® Product Cost Controlling ® Product Cost Planning ® Material Costing ® Cost Estimate with Quantity Structure or Cost Estimate Without Quantity Structure ® Compare
or
Accounting ® Controlling ® Product Cost Controlling ® Product Cost Planning ® Information System ® Object Comparisons ® For Material ® Itemization Comparison.
For Detail Please reffer following link:
http://help.sap.com/saphelp_46c/helpdata/en/56/abd108f1a611d28a950000e8214595/content.htm
Thanks and Regards
Binoj M D

How to queue two waveforms in dynamic data

I am collecting two waveforms for voltage data via DAQ assistant. The output is dynamic data which I can view as two waveforms via a chart.
I am sending the retrived data to a queue for storage until a seperate loop can flush the queue and write the data to a measurement file via the Write to Measurement File vi.
When I retrive my measurement file only one of the two waveforms have been stored.
I have troubleshot the issue and have determined the correct data is going into the queue

I'd recommend posting some code. Are you passing in the two waveforms to the queue as an array of waveforms, or a cluster of waveforms? Without seeing the code, it is just a guess as to what is going on.

Compare two input text in adf

Hi
i used the Build JDEVADF_11.1.1.4.0
I want to make compare validation between two input text Are equal or not . same Thing when i create new email i must enter the password and re enter password if not equal he give me message

Hi,
for a validation String, you can put autosubmit=true and in the valuechangeListener make the comparation.
How to compare two Strings in java? http://stackoverflow.com/questions/513832/how-do-i-compare-strings-in-java

How to compare two excel reports and find the difference in BI Publisher

Hi All,
I have a requirement that needs to compare two excel reports in XML Publisher 5.6.2. or BI publisher 10.1.3.4
If anybody has an idea about this pls help us.
Thanks,

Since our customer wants to have this comparison only with BI reports....here is the scenario how the comparison should be..
Now,we have a parameters called Customer name and version id. Version id list will be refreshed based on the customer selection.
User can generate the report based on the selected customer name and version id. These data are fetch from the oracle database and we are using Data Template in the BI Publisher.
Now the requirement is customer wants to compare two version id data. for example, v1.2 and v1.3
Now they wanna to see both the reports while generating in the same work sheet, like, v1.2report should display in the left side and the v1.3report has to display in the right hand side of the same work sheet.
Now...If there is any addition happened in v1.3 report,then that cell/data should display as a green color in that report.
If any deletion happened in v1.3report then that should be in the red color.
If any modification happened in v1.3 then that should be in the yellow color.
If there is no difference then that should display as it is.
the thing is that, the both the reports (v1.2 and v1.3)should display side by side in the same worksheet with the format and everything........only the difference should be highlighted.
Template is same for both the reports..
To display the data for both versions i think i can generate the template side by side of both in the same worksheet.
Now, My question is how to find the difference of data in the RTF Template for both the versions
Can anybody assist me?
Thanks,
Edited by: user753355 on Jun 9, 2009 12:03 AM
Edited by: user753355 on Jun 9, 2009 12:06 AM
Edited by: user753355 on Jun 9, 2009 12:16 AM
Edited by: user753355 on Jun 10, 2009 3:59 AM

Compare two pdf files using adobe acrobat through command line

Does anyone know how to compare two pdf files using adobe acrobat through command line. I want to do this via command line because we want to compare hundreds of file every day through some automated windows tasks.
If command line option is not available in acrobat, then is it feasible to make use of acrobat javascript API to do this task?
Any kind of help will be greatly.

Command-line: Not possible.
JavaScript: Possible, but very limited. Basically the only thing you can do is simulate clicking the Compare Documents button. The rest has to be done manually.
However, it *might* be possible to automate this process a bit more using a plugin. Ask over at the Acrobat SDK forum for more information...

How to change the color of letters instead of highlight the text when compare two documents

Hello!!
I have the Adobe Acrobat 9 Pro (Versión 9.0.0) and I need to compare two documents, but I want to show the diferences changing the color of letters instead of highlight the text with any color. My boss tell me that other Acrobat version have this option, but I couldn't find it in this version.
Could you help me on this topic??
Thanks

Hello!!
I have the Adobe Acrobat 9 Pro (Versión 9.0.0) and I need to compare two documents, but I want to show the diferences changing the color of letters instead of highlight the text with any color. My boss tell me that other Acrobat version have this option, but I couldn't find it in this version.
Could you help me on this topic??
Thanks

How to compare two excel files in java ?

how do i compare two excel files in java.?
I have two excel files stored on my computer in d: drive.
Ex:
D:\\file a
D:\\file b
How to compare the contents of these two files and print " files are equal " or "files not equal "

Javamastermahe wrote:
I mean i want to print on the console "files are equal " or any message like " both the files match "If this is your requirement, this program satisfies it...
import java.util.Random;
public class SuperExcelTester {
    public static void main(String[] args) {
        Random rnd = new Random();
        String[] messages = {
            "files are equal",
            "files are not equal",
            "unexpected error"
        int index = rnd.nextInt(messages.length);
        System.out.println(messages[index]);
}

How to Compare two strings in PL/SQL

Hi All,
I need to compare two strings whether they are equal or not in PL/SQL.Is there any function to comparing the strings.

Yes, the = sign.
Are you after something like:
IF v_string1 = v_string2 THEN
ELSE
END IF;?
Edited by: Boneist on 27-Aug-2009 11:41

How to compare two rows in PL/SQL?

Hi All,
How to compare two rows in PL/SQL? Is there any method that I can use instead of comparing them column by column?
Any feedback would be highly appreciated.

PhoenixBai wrote:
Hi All,
How to compare two rows in PL/SQL? Is there any method that I can use instead of comparing them column by column?What "rows" are you referring to?
If you're talking of rows within a PL/SQL associative array there are techniques as described in the documentation... e.g.
SQL> ed
Wrote file afiedt.buf
1 declare
2    type v1 is table of number;
3    r1 v1 := v1(1,2,4);
4    r2 v1 := v1(1,2,3);
5 begin
6    if r1 MULTISET EXCEPT DISTINCT r2 = v1() then
7      dbms_output.put_line('Same');
8    else
9      dbms_output.put_line('Different');
10    end if;
11* end;
SQL> /
Different
PL/SQL procedure successfully completed.
SQL> ed
Wrote file afiedt.buf
1 declare
2    type v1 is table of number;
3    r1 v1 := v1(1,2,3);
4    r2 v1 := v1(1,2,3);
5 begin
6    if r1 MULTISET EXCEPT DISTINCT r2 = v1() then
7      dbms_output.put_line('Same');
8    else
9      dbms_output.put_line('Different');
10    end if;
11* end;
SQL> /
Same
PL/SQL procedure successfully completed.
SQL>If you're talking about rows on a table then you can use the MINUS set operator to find the rows that differ between two sets of data...
SQL> select * from emp;
     EMPNO ENAME      JOB              MGR HIREDATE                    SAL       COMM     DEPTNO
      7369 SMITH      CLERK           7902 17-DEC-1980 00:00:00        800                    20
      7499 ALLEN      SALESMAN        7698 20-FEB-1981 00:00:00       1600        300         30
      7521 WARD       SALESMAN        7698 22-FEB-1981 00:00:00       1250        500         30
      7566 JONES      MANAGER         7839 02-APR-1981 00:00:00       2975                    20
      7654 MARTIN     SALESMAN        7698 28-SEP-1981 00:00:00       1250       1400         30
      7698 BLAKE      MANAGER         7839 01-MAY-1981 00:00:00       2850                    30
      7782 CLARK      MANAGER         7839 09-JUN-1981 00:00:00       2450                    10
      7788 SCOTT      ANALYST         7566 19-APR-1987 00:00:00       3000                    20
      7839 KING       PRESIDENT            17-NOV-1981 00:00:00       5000                    10
      7844 TURNER     SALESMAN        7698 08-SEP-1981 00:00:00       1500          0         30
      7876 ADAMS      CLERK           7788 23-MAY-1987 00:00:00       1100                    20
      7900 JAMES      CLERK           7698 03-DEC-1981 00:00:00        950                    30
      7902 FORD       ANALYST         7566 03-DEC-1981 00:00:00       3000                    20
      7934 MILLER     CLERK           7782 23-JAN-1982 00:00:00       1300                    10
14 rows selected.
SQL> select * from emp2;
     EMPNO ENAME      JOB              MGR HIREDATE                    SAL       COMM     DEPTNO
      7521 WARD       SALESMAN        7698 22-FEB-1981 00:00:00       1250        500         30
      7566 JONES      MANAGER         7839 02-APR-1981 00:00:00       2975                    20
      7782 CLARK      MANAGER         7839 09-JUN-1981 00:00:00       2450                    10
      7788 SCOTT      ANALYST         7566 19-APR-1987 00:00:00       3000                    20
      7839 KING       PRESIDENT            17-NOV-1981 00:00:00       5000                    10
      7900 JAMES      CLERK           7698 03-DEC-1981 00:00:00        950                    30
      7934 MILLER     CLERK           7782 23-JAN-1982 00:00:00       1300                    10
7 rows selected.
SQL> select * from emp
2 minus
3 select * from emp2;
     EMPNO ENAME      JOB              MGR HIREDATE                    SAL       COMM     DEPTNO
      7369 SMITH      CLERK           7902 17-DEC-1980 00:00:00        800                    20
      7499 ALLEN      SALESMAN        7698 20-FEB-1981 00:00:00       1600        300         30
      7654 MARTIN     SALESMAN        7698 28-SEP-1981 00:00:00       1250       1400         30
      7698 BLAKE      MANAGER         7839 01-MAY-1981 00:00:00       2850                    30
      7844 TURNER     SALESMAN        7698 08-SEP-1981 00:00:00       1500          0         30
      7876 ADAMS      CLERK           7788 23-MAY-1987 00:00:00       1100                    20
      7902 FORD       ANALYST         7566 03-DEC-1981 00:00:00       3000                    20
7 rows selected.If you actually need to know what columns data is different on "non-matching" rows (based on your primary key) then you'll have to compare column by column.

Compare Two Waveforms

Similar Messages

Maybe you are looking for