Amplitude Scaling

The Amplitude Scaling is very flexible, and can scale from viewing an entire 32 bit waveform to individual digitisation steps in a window. There are a number of ways to adjust the amplitude scaling:

1. Use the buttons on the toolbar of the WaveView window. The button increases the scale (zoom in, or expand the waveforms), and the button decreases the scale (zoom out, or squash the waveforms).
2. Use the Up and Down arrow keys on the keyboard. The up arrow key increases the scale, and the down arrow key decreases the scale.
3. A mouse wheel can be used if fitted and drivers installed. Turning the wheel up increases the scale, turning the wheel down decreases the scale.
4. By enabling the "Auto-Scale before capture" of the auto-screenshot feature, automatic scaling can be activated.

The scaling factor used represents the number of digitisation steps (counts) per pixel, vertically. I.e. at a scale of 1:256, a waveform peak-to-peak of 50 pixels represents 12800 counts. To convert this value into a physical quantity, refer to the specifications for the originating device.

Note that the pixels do not need to be manually counted. Use the Measurement Cursors for this purpose.

See Also :

The WaveView Window, Time Scaling