PB option d'enregistrement Signal Express

Bonjour,
j'essaye de faire avec Signal Express le type de travail suivant :
+ Enregistrer une tension pendant 5s, Calculer la moyenne des valeurs acquises, enregistrer ces valeurs dans un fichier.
+ Je souhaite faire cet enregistrement toutes les heures pendant 24h.
Pour réaliser ces opérations je configure dans Signal Express les conditions de démarrage et d'arrêt de l'onglet "Option d'enregistrement". Mais quoi que je fasse l'enregistrement ne se fait qu'une seule fois...!!!!!!!
Dans l'exemple de la pièce jointe, j'essaye de démarrer immédiatement l'enregistrement pendant 5s de ma tension, toutes les 30s et cela 3 fois. Mon paramétrage ne fonctionne pas, l'enregistrement ne se fait qu'une seule fois !!!
Est-ce que ces fonctions de Signal Express fonctionnent réellement ?
Si oui comment faire pour les utiliser correctement ?
Merci d'avance pour vos réponses.
Pièces jointes :
Image_Signal_Express.JPG ‏205 KB

Bonjour,
J’ai fait le
test sur mon ordinateur. L’acquisition et l’enregistrement fonctionnent très
bien pendant 5 seconde toutes les 30seconde
3 fois.
Avez-vous bien
spécifié la condition d’arrêt (durée 5s) ?
Avez-vous bien
coché les signaux que vous voulez enregistrer dans l’onglet Sélection des
signaux ?
Sur votre
imprime écran, il est possible de voir un warning à coté de la tache de DAQmx,
pouvez vous connaitre la raison de celui-ci ?
Cordialement
Samuel G.
Samuel G. | Application Engineer Team Leader
Certified LabVIEW Developer
National Instruments France
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Bonjour,
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Bonjour,
Merci pour votre réponse rapide.
Afin de contourner le problème, j'ai téléchargé le driver suivant:
http://sine.ni.com/apps/utf8/niid_web_display.download_page?p_id_guid=6E23DB10D9FC2B05E04400144FB7D2...
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Bonjour
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Equipment used: PXIE-8102 CELERON T3100 1.9GHZ Controller Windows 7, PXIE-1071 4 Slot Chassis, PXIE-4140 4-Channel SMU 1.7.5 version.
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How to program encoder pulses in Signal Express to read out in degrees

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Hello David,
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Attachments:
Schritteinstellungen.jpg ‏124 KB
Aufnahmeoptionen.jpg ‏59 KB

Set up Signal Express to log when there is a change in state of the inputs (NI USB-6501 logger)

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Ah that unfortunate, and yes start/stop conditions for loging are part of the Full version of SignalExpress
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Sorry about that

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Hello mbhatti,
I founded a KB which seems do describe the way to solve your problem.
Appending Data to the Same File when Logging in LabVIEW SignalExpress :
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Application Engineer Group Leader
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Solved!
Go to Solution.

Hi Enrique,
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Is it best to use the 5ghz option on the airport express

Is it best to use the 5ghz option on the airport express

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Signal Express Play Back Help

I have logged a signal in Signal Express. The logged signal was a force aquired from a NI DAQ system. The logged data consists of a number of peaks all of difference magnitude and period. My goal is to get a list of each of the peaks maximum amplitude so I can later average these force components for analyzation.
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Hello,
I have the following application and I am looking for some tips on the best way to approach the problem with Signal Express:
I am attempting to using Signal Express 2009 (Sound and Vibration Assistant) to collect random vibration data on three channels over an extended period of time -- about 20 hours total. My sample rate is 2kHz. Sampling at that rate over that period of time invovles the creation of a very large TDMS file, which is intended for various types of analysis in signal express later or some other application later on. One of the analysis functions to be done is a PSD (Power Spectral Density) plot to determine the vibration levels distributed over a band of frequencies during the log.
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My solution to this problem thusfar has been to log the data to seperate .TDMS files, about an hour in length each. This should result in about 20 files in my final application. Since I want to take a PSD, which ends up being a statistical average over the whole time period. I plan on generating a curve for each of these files and averaging all 20 of them together to get the overall vibration PSD curve for the 20 hour time period.

JMat,
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Thanks, Jared

Labview 2012 Signal Express

We have Labview 2012 Signal Express (version 6.0.0) installed on a XP computer and we would like to upgrade to a Window 7 machine. Will the current version of Labview 2012 works on the Window 7 machine? The Labview 2012 Signal Express is used to control a cDAQ-9172 with a 4-Ch thermocouple module.
Solved!
Go to Solution.

This is the LabVIEW board. Please click on Options and request that the moderator move your question to the SignalExpress board. LabVIEW itself works on Windows 7 but they are two different products and not many people here use SE.

Custom square wave duty cycle in signal express

Hey everyone,
I am using an USB X Series Multifunctional DAQ Model 6361, with labview signal express 11 on windows7 (version 9.3.5) and I am trying to figure out if i can change the duty cycle of a square wave. I need to have one period be at 75% duty cycle and another 25% or something along these lines.
thanks!
Adam

Hi Adam,
I believe another Applications Engineer has corresponded with you concerning this issue already. If you are looking to generate a truly custom square wave where the duty cycle changes from one period to the next then you will need LabVIEW as this functionality is not supported in SignalExpress.
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Regards,
James D.
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PB option d'enregistrement Signal Express

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