Measurement Computing StrainBook/616 - Manual (Page 36)

Selecting a Channel’s Units
You can use WaveView to select a channel’s units in one of two ways.
(1) Click in a channel’s Units cell; then select the desired units from the “Select Units” pull-down
list.
(2) Double-click in a channel’s Units cell to cycle through the units. Note that after the mX+b
dialog box appears you must click “OK” to continue cycling.
Note: You can use the mX+b equation to adjust a channel’s scale and offset. You can enter user-defined
units from the mX+b dialog box. An example of using mx + b is provided below, and on the
following page.
After completing channel configuration, you can select the Acquisition Configuration option from
WaveView’s View menu or tool bar. The figure to the right represents the Acquisition Configuration
dialog box. The parameters shown are a result of the values entered below the figure.
Clicking the Close button sets the acquisition parameters as the active parameters.
Acquisition Configuration Dialog Box
Triggering
Type: Manual
Scanning Duration
Convention: Scans
Pre-Trigger: 1000 scans
Post-Trigger: 5000 scans
Scanning Rate
Clock: Internal
Convention: Frequency
Pre-Trigger: 50 kHz
Post-Trigger: 50 kHz
mX + b, an Example
From the Customize Engineering Units dialog box (see figure
at right), you can enter values for m and b components of the
equation that will be applied to the data. There is also an entry
field that allows you to enter a label for the new units that
may result from the mX+b calculation.
An example of mX + b equation use follows.
4-6 Software 967594 StrainBook/616 User’s Manual