User's Manual

Ocean Optics with Xplorer GLX Collecting Data

either side of the pixel specified by the Wavelength parameter. There-

fore, the total number of pixels equals Bandwidth ×2+1.

Sample Rate This parameter specifies the rate (in Hz or samples per

second) at which the GLX will record data.

Collecting Data

View and record data using Spectral Scope mode, Time Acquisition

mode, or Beer’s Law mode as described below.

Spectral Scope Mode

Collect data in Spectral Scope mode when you want to monitor or

record the whole spectrum. Each recorded spectrum represents light col-

lected over a period of time determined by the Integration Time and

Average parameters (see pages 5 and 5).

Note: Spectral Scope scan mode is not the same as the regular GLX scope mode

used with other sensors.

Spectral Scope is the default mode. If you have switched to a different

mode, go to the Time Acquisition tab of the configuration screen (see

above) to switch back.

To monitor and record data in Spectral Scope mode:

1. If the configuration screen is open, press to close it.

2. While viewing the Graph display, press to begin monitoring

data. A periodically updated spectrum appears on the display, and

the clock icon ( ) appears in the upper right corner of the screen.

Note: While viewing spectral data, you can use normal GLX Graph screen func-

tions, such as Auto Scale ( ) and Scale/Move ( ). See the GLX Users'

Guide for more information.

3. To record the spectrum, press again. The graph freezes on the

most recently collected spectrum, and this spectrum is saved as a

data run (named “Run #1”, “Run #2”, etc.)

4. Press again to start monitoring again.

5. Repeat steps 3 and 4 to record additional spectra.

Time Acquisition Mode

Use Time Acquisition mode to collect data from a single channel (either

a single pixel or a block of adjacent pixels). The location and width of

the block is determined by the Wavelength and Bandwidth parameters.

The rate of data collection is determined by the Sample Rate parameter.

Go to the Time Acquisition tab of the configuration screen (see page 5)

to put the GLX into Time Acquisition mode and to set the parameters;

then follow these steps:

1. If the configuration screen is open, press to close it.

Spectral Scope mode

Time Acquisition mode