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A0870-30 en The first steps catman ) Professional and catman ) Express Short Guide
Transcript
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A0870-30 en

The first steps

catman) Professional

and catman) Express

Short Guide

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Content Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 Installation 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 Configuring the database 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 Registering the device and connecting channels 8 . . . . . . . . . . . . . .

4 Setup I/O channels 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 Data acquisition – setup dialog box 12 . . . . . . . . . . . . . . . . . . . . . . . . . .

6 Data acquisition – visualization window 14 . . . . . . . . . . . . . . . . . . . . . .

7 Data management 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8 Notes and additional support 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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1 Installation

To install catman, place the CD into the drive. Installation will startautomatically within seconds but if it does not, you can call the ”Setup.exe” fileon the CD manually.

Once you have selected the language and entered the license number (leaveblank in the case of demo versions), you can choose the components to beinstalled. All the components for a default installation are already activated. Tosave memory, any unused amplifier setups can be deactivated as required.

RUNTIME components are not usually needed.

In the two additional dialog boxes, you can select special interfaces andNational Instruments NI–MIO cards. The GPIB interface card and the ATMIOcard have to be mounted before catman installation and the drivers installed.

If the drivers are not installed (for example because you do not havethese cards), they must not be selected, as otherwise you will not beable to start catman).

Operating systems with Windows NT, 2000 and XP require AdministratorRights on the PC. Details of this can be found in section A3 of the manual.

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Choose only if card & driverhave been installed!!!

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2 Configuring the database

The database is a temporary file, in which recorded and if applicablecalculated measurement data is saved.The size of the database can be adjusted in length (number of channels) anddepth (maximum number of data items per channel) to suit your requirements.To do this, call ”Configure database” under the Options menu item.

For standard measurements, the default values are adequate. Thismeans that you can close this dialog box by pressing ”OK”.

You will have to increase the length or depth of the database if you want tomeasure with more than 40 channels or more than 3,2000 values per channel.To do this, enter the required value in the relevant field (”Maximum number ofchannels” or ”Maximum depth”) and apply the value to all the channels byusing ”Apply to all channels”.

The database configuration is saved automatically, that is, you only have toreconfigure if a modification to your measuring device means that the numberof channels or the channel depth has to be changed.When changes are made to the database configuration, any existingmeasurement data is deleted. This must therefore be exported to the harddisk beforehand.

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Change channel number

Modify depth

Apply the modification

Close with ”OK”

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3 Registering the device and connecting channels

To register your amplifier, call I/O Definition (for catman Express”Configure devices and I/O channels”) and press (as shown in the picture onthe right) the ”New device” button and choose the device type (MGCplus,Spider8 etc.), and the interface (COM = serial, LPT = parallel). Depending onthe interface, there are further parameters to be defined (Address, Board No.or Baud rate).

catman will now ask whether it should connect the channels in the deviceautomatically. Answer ”Yes” to this question. If catman cannot make aconnection to the device (error message after approx. 10 seconds), checkyour specifications, the connection to the PC and the power supply and repeatAutomatic channel detection via the icon. With Automatic channeldetection, each channel in the amplifier is connected to catman . Assigningnames for the channels makes it easier to work with them later.Alternatively to registering manually as described above, you can scan the in-terfaces for HBM devices. LPT1 and USB are scanned as standard and alldevices and channels found will be connected in the I/O definition.

You can add virtual channels as required, for example, for realtimecomputation. To do this, in the ”Connection” column of a free channel, clickthe righthand mouse button to choose ”Online computation” and one of thefunctions “Free computation”, “Hard coded function” or “S.G. rosettecalculation”.

If no device is available, you can load a prepared I/O Definition. This willsimulate a number of measurement curves so that you can carry out the nextsteps (apart from setup I/O channels). The ”Demo_IOD.IOD” file is located inthe catman ”Examples” subdirectory.

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Channel names

Detected channels

Additional virtual channel

Choose device type and interface

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4 Setup I/O channels

Now all I/O channels have to be set up according to the connectedtransducers. The easiest way is to use the sensor database. Nearly all HBMtransducers and templates for strain gage bridges are held in the sensordatabase.To assign an I/O channel to a sensor double click on the ”Sensor setting”column of the respective I/O channel and choose the connected sensor fromthe dialog box that opens (see upper picture). When starting a measurement,catman configures the amplifier according to the settings held in the sensordatabase.You can modify the settings of the sensor database or add your own sensortype (”Edit Sensor Database...” in ”File” menu).

To complete the setup you can assign a low–pass filter frequency to an I/Ochannel. Choose a fixed filter frequency or ”Automatically from sample rate” inthe ”Filter setting” column (see lower picture). With the automatic adjustmentof the filter, catman sets a filter frequency of about 1/8 of the sample rate.

If you do not want to use the sensor database, you can manually set up thebridge characteristic, unit, excitation voltage, scaling, filter etc. via the Setup

Assistant (”Configure device”).

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5 Data acquisition – setup dialog box

Exit I/O Definition, save your first IOD and call the ”Data logger” catModule(for catman see upper picture). catModules are prepared measuringprograms for standard measurements.The parameters for measurement can be defined in the setup dialog box. Thesettings shown in the lower graphic are ideal for the first measurement.Configure data logger and accept the settings with ”Run...”.You can adapt the default sample rate (one of the measurement settings) tosuit your measurement task. For the first measurement, keep the 50 Hzdefault.The various catModules are described in detail in Chapters E and F of themanual.

Meaning of the parameters:

Measurement settings: Choosing the sample rate (default is 50 Hz)Initialize I/O channels: Reading out and initializing the settings of the

measurement channels before measurementAutostop logger: Defining measurement duration or manualLoad device setup: Loading the saved device settingsSave settings: Saving the data logger setupVisualization window: Graph for visualizationSave in database Which channels to save in the databaseOnline data export: Exporting measured values during

measurement

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6 Data acquisition – visualization window

A visualization window opens with digital displays on the left and a stripchart(y(t) Scientific graph) on the right. The digital displays are automaticallyconnected to the measurement channels in the I/O Definition. The defaultdisplay for the stripchart is channel 2 (usually the first measurement channel).

To visualize additional channels in the stripchart, right-click on the stripchartand choose ”Data sources” (see pictures).

To start measurement, press the button. The measured values will berecorded and visualized in real time. Use the icon to stop measurement.

The Y axis of the stripchart is scaled automatically; if you prefer fixed scaling,double-click the Y axis. Use the Configuration dialog box to deactivateAutoscale and define limit values. The time axis is defined by the buffer sizenumber in the ”Real–Time” dialog box.

Exit the catModule by using the icon.

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Visualize additional

channels

Visualized channels

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7 Data management

Call the Database channel manager . Here you can survey and monitor thesaved measured values in the channels of the database.Your measurement data can also be mathematically analyzed. An extensivelibrary of mathematical functions is available (not for catman Express).The database editor creates an overview of the measured values as atable. If you prefer to use Microsoft Excel for display and analysis, use theExcel Icon to export the measured values to Excel at the press of a button.

The measurement data can be saved (exported) on the hard disk . Asshown in the lower picture, as well as the path and file name, you can alsoselect the channels to be exported and define the Export format. The ”Binarystandard format” export format is catman’s own format. With the catman

format you are sure not to lose any resolution and traceability data is saved aswell, because the measuring data are binary stored.

Further information can be found in online Help and in the manual.

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Dateiname

Exportkanäle wählen

Exportformat

File name

Choose export channels

Export format

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8 Notes and additional support

More options with catman):As well as the ”Data logger” catModule described here, there are othercatModules available for a variety of measurement tasks (e.g. Periodicmeasurement or Single value data acquisition).

Use QuickView to visualize the data and use the cursor and zoom function toevaluate the graph.

catman) (not Express) gives you additional options:

• You can use the online document editor to generate your own pages forvisualization and use the Measurement Wizard to integrate them into yourown measurement.

• You can make use of the Auto Command list to automate sequences in themeasurement run (e.g. peak analysis after each measurement period).

• If the interactive options provided by the catModules and the MeasurementWizard are not adequate, you can program complex measurement runs byusing catman ’s own script language.

Help and support:

• Context-sensitive online Help (Help at the press of a button)

• Manual (detailed documentation for catman)

• catman maintenance contract

• Local HBM sales engineer

• catman Hotline ([email protected] or +49 6151–803 373)

• Internet (www.hbm.com → Support)

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Automate sequences in themeasurement run

catModule

Measuring with your own visualizations

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Hottinger Baldwin Messtechnik GmbH

Im Tiefen See 45, D-64293 Darmstadt, GermanyTel.: +49 6151 8030; Fax: +49 6151 803 9100E–mail: [email protected] www.hbm.com

Modifications reserved.All details describe our products in general form only.They arenot to be understood as express warranty and do not constituteany liability whatsoever.

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