two consecutive measures of distance

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• measure the distance between 2 impulses (PCI-6221)

  Hello

  I have a digital signal that sends a pair of impulses (100ns width each) roughly every 100ms and I measure the time between two pulses of a pair (with a resolution of 100 ns).
  For the moment, I got a card PCI-6221 to accomplish this task. Unfortunately, I have no solution until now only measures of counter, I found measure time between constant frequency signals, i.e. they cannot measure the distance between 2 single pulses.

  Any help / ideas / or even telling me that it is impossible to solve this task are appreciated

  Are the two pulses on the same line?

  If so, you need to just configure a task of the measurement period.  If they are on separate lines, you would use a task of "separation of two-edge.

  You might be to throw off by the timing of it:

  If you do not configure implicit synchronization in your task, will start on the first edge after DAQmx Read is called.  Thus, in order to intercept the signal, that you must configure your task, call DAQmx Read and then start your two squares.

  If you want the task to control the signal continuously, you must configure name timing.  In this case, you will receive a sample on each rising edge of the external signal (assuming that the two impulses on the same line) - If you start the task of counter before starting the production of pulses (which you probably should), then the same samples correspond to the time between pulses, the odd samples would be the time between each series of pulses.

  More information on modes of counting on the 6221 lie in the M series user manual.

  Best regards

• Table 1 d with rejection of the two consecutive points

  Hello

  I have table 1 d with 10 measuring points. I treat points in pairs and according to the difference between two consecutive points, I have decision weather the two points must remain in the table or should be rejected. For example, my 1 d table looks like this: 10, 20, 30, 35, 40, 44, 50, 51, 60, 69. I calculate the difference between consecutive points by pairs: 20-10 = 10, 35-30 = 5, 44-40 = 4, 51-50 = 1, 69-60 = 9. I would like to reject the table points with the value of the gap less than 2. In my case, the points are 50, 51 and the table after the rejection should have 8 items and look like this: 10, 20, 30, 35, 40, 44, 60, 69. What is the most elegant way to do it? I'm in LabVIEW 8.6.

  Thanks in advance!

  Review your original message and your example to better understand your stated requirements.

  "I treat the couple points."

  You have to take into account only the pair of 1st and 2nd point, then don't take into account the point of 3rd and 4th pair so on and so forth.

  Never consider the 2nd to 3rd or her never consider the 4th to the 5th, so on and so forth?

  What is your table? If it is very large (1000000 points), you may need to consider other options for the use of memory and speed.

• Measure the distance using color sensor 2.0

  Hi all!

  I would like to know if there is a way to measure the distance of an object using the color sensor that comes with the Mindstorms 2.0. I am gaining a few conferences of the sensor, but I don't know how to convert these values to distance.

  Any reference or a link would be appreciated!

  Thank you!

  Hi fran_jo,

  Here is an article which offers a good method to calculate the exact values of scaling to convert measures of intensity at a distance: http://www.hitechnic.com/blog/eopd-sensor/eopd-how-to-measure-distance/.  Do not forget that this relates to a third party of sensor, but the concepts should always be applied.

  Also note that the color sensor is affected by ambient light.  You can try to use a 2nd sensor to take account of all the ambient light.  What you trying to accomplish with this application?  Is there a reason that you are not using the ultrasonic sensor?

• with an average of 100 consecutive measurements below a threshold value

  Hello

  I just started programming labview. I'm having difficulties with just this very simple programming code. I was breaking my head all night. I'd appreciate a quick response.

  How can I make a code that would allow an average of 100 consecutive measurements which are below a certain threshold value in labview?

  Thank you.

  Try the joint.  The key is shift registers-(blue) integer is a counter of deca thresholds measures and it returns 0 if there is a measure above threshold the result is saved whenever the counter is greater than 100 (indicating > = 100 consecutive values of 'good'). This also prevents internally while loop and outer loop causes the records to shift to reset.  I added a function to "define the position of the file" then the values will be added rather than overwrite the file.  You will probably need to insert a carriage return in the string that is written in the file so that the values appear on separate lines.  I also changed your data types of DBL - they were I32 (integer) that doesn't seem to jive with your indication that you take analog action.

• variable sharing, missing data, the timestamp even for two consecutively given

  Hello

  I have a problem with missing data when I read a published network shared variable.

  Host VI:

  In a host of VI on my laptop (HP with Windows XP Prof.) I write data to the shared Variable 'data '. Between two consecutively write operations is a minimum milliseconds of wait time. I use it because I want to make sure that the time stamp of each new value of data is different then a preview (variables shared the resolution is 1 ms)

  VI target:

  the VI target cRIO-9012 bed only of new data in the way that it compares the timestamp of a new value with the time stamp of the last value on a device in real time.

  Problem:

  rarely, I'm missing a data point (sometimes everything works fine for several hours, transfer thousands of data correctly above all of a sudden failure occurs). With a workaround, I'm able to catch the missing data. I discovered that the missing data have the timestamp exactly the same, then the last point of data read, is so ignored in my data 'legal '.

  To summarize, the missed value is written to the variable shared host, but ignores the target because its timestamp is wrong, respectively the same as the last value, despite the host waits for a minimum of 10 milliseconds each time before writing a new value.

  Note:

  The shared Variable is hosted on the laptop and configured using buffering.

  The example is simple only to display the function of principle, in real time, I also use a handshake and I guarantee that there is no sub - positive and negative.

  Simplified example:

  

  

  Question:

  Anyone has an idea why two consecutively data can have the same timestamp?

  Where timestamping (evil) Finally comes (System?)?

  What would be a possible solution (for the moment with shared Variables)?

  -> I tried to work around the problem with the clusters where each data gets a unique ID. It works but it is slower that comparing the timestamps and I could get performance problems.

  It would change anything when I animate the shared on the RT System Variable?

  Thanks for your help

  Concerning

  Reto

  

  This problem has been resolved in LabVIEW 2010.  You can see other bugs corrections in theReadme of LabVIEW 2010.

• Measure the distance between 2 points of glare

  Hello

  Does anyone know how to measure the distance between 2 points (attached Image) glare. The image shows 10 sets of points of glare. I appreciate if you can guide me to process the image and produce the algorithm to detect the 10 sets of points of glare and measure the distance from each game.

  Thank you

  Farid

  Check if this will do

• How to measure a distance in photoshop elements 14? any tool?

  How to measure a distance in photoshop elements 14? any tool?

  You can use the online tool and watch the L (length) in the box in the document area or in the window > Info Panel.

  The length is displayed in you have units of the rule value, such as inches, pixels or...

  

• How can I change the scale when you measure the distance?

  When you measure a distance of 20 m on the pdr-drawing tool says 10 cm measurement. How can I change the scale? The notice said it's possible, but I don't know how I do

  Hi Bandreason,

  How to change you can visit this link: Adobe Acrobat x: change the measurement scale. ROCKY MOUNTAIN TRAINING blog document is for mac but option is the same.

  Kind regards

  Ajlan Huda.

• How to measure the distance using script

  Hello

  Is it possible to measure the distance of any document in photoshop using the measure tool, using the script. Below the steps required by me. Hope I'm clear in my communications.

  I've searched the forums, but couldn't find appropriate answers.

  1. open the Photoshop document

  2. allow the user to draw the line with measure tool

  3. the alert distance

  RGS

  Anish

  This only works with CS5 because it now uses the tool instead of a path rule. But it solves all the problems talked about in this thread and many other differences between the original function and the data in the info panel.

  It returns a custom with angle and length properties object if there is a rule tool line in the active document and not of the indefinite. I didn't know if the length must be a unitValue or number in the units of the rule settings. I went with number because the Panel info has different number of decimal places for the different units. And as the Panel assigned the corresponding graduation info per cent the length value is empty

  function getRulerToolLengthAndAngle() {}

  points of var = [];

  points. Start = [];

  points. End = [];

  var / / desc = new ActionDescriptor();

  Var ref = new ActionReference();

  ref.putProperty (charIDToTypeID ('Rprp'), charIDToTypeID ("RrPt"));

  ref.putEnumerated (charIDToTypeID ('Dcmn'), charIDToTypeID ('Ordn'), charIDToTypeID ('Trgt'));

  desc.putReference (charIDToTypeID ('null'), ref);

  var / / desc = executeAction (charIDToTypeID ('getd'), desc, DialogModes.NO);

  If (desc.hasKey (charIDToTypeID ('points'))) {}

  pointList var = desc.getList (charIDToTypeID ('points'));

  var startPointDesc = pointList.getObjectValue (0);

  points. Start.push (startPointDesc.getUnitDoubleValue (charIDToTypeID ('X')));

  points. Start.push (startPointDesc.getUnitDoubleValue (charIDToTypeID ('Y')));

  var endPointDesc = pointList.getObjectValue (2);

  points.end.push (endPointDesc.getUnitDoubleValue (charIDToTypeID ('X')));

  points.end.push (endPointDesc.getUnitDoubleValue (charIDToTypeID ('Y')));

  var RES = {};

  res.toString = function() {return "RulerTool news" ;};}

  Pointed var = points.start;

  var points.end = b;

  If (pointed [0]

  var a = Math.max(pointA[0],pointB[0]) - Math.min (pointed [0], b [0]);

  var o = Math.max(pointA[1],pointB[1]) - Math.min (pointed [1], b [1]);

  var ang = (180/Math.PI) * Math.atan2(o,a);

  If (pointed [1]< pointb[1]){//negative="">

  Ang = - ang;

  };

  Res.angle = ang.toFixed (1);

  } else {}

  var a = Math.max(pointA[1],pointB[1]) - Math.min (pointed [1], b [1]);

  var o = Math.max(pointA[0],pointB[0]) - Math.min (pointed [0], b [0]);

  var = 180-((180/Math.PI) Ang * Math.atan2 (a, o));

  If (pointed [1]< pointb[1]){//negative="">

  Ang = - ang;

  };

  Res.angle = ang.toFixed (1);

  }

  If (app.preferences.rulerUnits == Units.PERCENT) {}

  Res. Length = "";

  } else {}

  var c = Math.sqrt + ((a*a) (o * o));

  var length = new UnitValue (c, 'px');

  length.baseUnit = new UnitValue((1/app.activeDocument.resolution),'in');

  Switch (app.preferences.rulerUnits) {}

  case Units.PIXELS: res.length = length.as('px').toFixed (2); break;

  case Units.INCHES: res.length = length.as('in').toFixed (3); break;

  case Units.CM: res.length = length.as('cm').toFixed (2); break;

  case Units.MM: res.length = length.as('mm').toFixed (1); break;

  case Units.POINTS: res.length = length.as('pt').toFixed (1); break;

  case Units.PICAS: res.length = length.as('pc').toFixed (2); break;

  }

  }

  return res;

  }

  }

  var getRulerToolLengthAndAngle() = Info;

  If (info! = undefined) alert (' the ruler tool angle is: ' + info.angle +'\nThe length is: ' + info.length);

• Comparison of the values of two consecutive lines.

  Hello.
  I can compare the value of the same field in two consecutive rows?
  
  If this is the case. How could I do?
  
  Thanks in advance

  Hello

  Check [function Lag Lead | http://www.oracle-base.com/articles/misc/LagLeadAnalyticFunctions.php].

  Twinkle

• How to measure the distance between the elements now? cmd + move tool does not work

  I work on mac os x 10.9 and upgraded to photoshop cc2015.

  I used to measure distances between items by pressing cmd + move selected tool.

  Help please

  Do you have any guides? View > show > Smart Guides

• Use xfa.host.beep to trigger two consecutive beeps?

  Looks like it should be simple enough, but apparently not.

  I tried different combinations, place xfa.host.beep (1) in:

  -consecutively in the click event of the button.

  -separately in the mouseUp event and click;

  -place xfa.host.beep in a function and two calls to the function

  -call to the function then xfa.host.beep (1);

  Even tried xfa.host.beep (1) in the click event of Button1, and then click hidden event execution button 2, which contains xfa.host.beep (1).

  All work around suggestions? Thank you!

  Brian

  Hi Brian,.

  Try this;

  XFA. Host.Beep (1)

  app.setTimeOut ("xfa.host.beep (1)", 500);

  Who calls the beep, then half a second (or 500 m/s) later he calls again.

  Concerning

  Bruce

• Two consecutive sound icons for Audio files

  HI -.
  
  I've implemented a flow line which has two icons of consecutive sounds before displaying an icon of interaction with a question.
  
  The first sound icon is for the audio issue.
  The second sound icon is for audio for all of the answer choices.
  
  Originally, I had the file set up to play full audio of the issue and to play the audio response BEFORE the interaction icon would then become active (which requires participants to fully hear the question AND choices before responding). I did it using «WAIT FOR PREVIOUS SOUND "in the timing tab for the sound icons.»
  
  Now my client wants the interaction in question is immediately active while the game of questions and answers.
  
  Is it possible to have TWO separate room sound icons in order "simultaneously"? Or do I need to combine the TWO audio files into a single icon and sound competing to define? I was hoping to avoid combining the two audio files into an icon of her unique for two reasons:
  1. the files in question and response are delivered separated... so you have to put them together.
  2. I was hoping to put the answer files that are reused several times in a library file so that they can be reused again and again to maintain the low file size... and if I have to combine the question with responses each time, it will increase the size of the file.
  
  Or can I somehow use a command in a CALC ico to play an audio file located elsewhere?
  
  Any help would be appreciated.
  Thank you!
  
  
  

  The combination would be better for what is facilitated. A free audio tool like
  Audacity would be perfect. I understand the issue of management of library/property only.

  Authorware has only one audio channel the audio icon, you noted.
  The classic/native way to get around this is to have another audio
  Play through a sprite or an ActiveX control. The old method was to use
  the film with the film icon ' audio only ' QT, but the icon of film without
  more long handles QT...

  So much easier can be to create a Flash movie with the other audio file.
  Save down, as close to Flash 6 you can and use the Flash Sprite to
  play the other audio file.

  Otherwise, I think that Gary has a Xtra or .u32 on its site;
  http://www.mods.com.au
  who can manage playback of audio files - buddyWav, is it?
  HTH
  Erik

  Scott - TNC wrote:

  > Is it possible to have TWO separate room sound icons in order "simultaneously"?
  > Or do I need to combine the TWO audio files into a single icon and sound value
  > who to simultaneous?

  --
  Erik Lord
  http://www.capemedia.NET
  Adobe Community Expert - e-Learning
  http://www.Adobe.com/communities/experts/
  ------------------------------------------------------------------------
  http://www.awaretips.net - Authorware tips!

• When you surf, the URL does not change to reflect the page I'm. Also, if I have two consecutive sites, he is stuck with the first favicon and don't change either.

  Let's say I'm surfing a Web site. Any Web site. I type domain.com and start riding on the inside pages. "Domain.com" in the URL bar does not change.

  Also, if I visit two sites in a row and both have some favicons, I'll be stuck with the favorite of the first icon.

  They seem to be indications that the file that contains the details of the bookmarks and history is locked or damaged. This link should help - http://kb.mozillazine.org/Locked_or_damaged_places.sqlite