Instrument Control Toolbox

Fetch Spectrum through Ocean Optics Spectrometer using MATLAB Instrument Driver

This example shows how to acquire the spectrum of a fluorescent light source from an Ocean Optics Spectrometer.

Introduction

Instrument Control Toolbox™ supports communication with instruments through high-level drivers. In this example you can acquire spectrum from an Ocean Optics Spectrometer using the MATLAB Instrument Driver.

Requirements

This example requires the following:

  • A 64-bit Microsoft® Windows®

  • Ocean Optics spectrometer USB2000

Create MATLAB Instrument OmniDriver object.

spectrometerObj = icdevice('OceanOptics_OmniDriver.mdd');

Connect to the instrument.

connect(spectrometerObj);
disp(spectrometerObj);

Set parameters for spectrum acquisition.

% integration time for sensor.
integrationTime = 50;
% Spectrometer index to use (first spectrometer by default).
spectrometerIndex = 0;
% Channel index to use (first channel by default).
channelIndex = 0;
% Enable flag.
enable = 1;

Identify the spectrometer connected.

% Get number of spectrometers connected.
numOfSpectrometers = invoke(spectrometerObj, 'getNumberOfSpectrometersFound');

display(['Found ' num2str(numOfSpectrometers) ' Ocean Optics spectrometer(s).']);

% Get spectrometer name.
spectrometerName = invoke(spectrometerObj, 'getName', spectrometerIndex);
% Get spectrometer serial number.
spectrometerSerialNumber = invoke(spectrometerObj, 'getSerialNumber', spectrometerIndex);
display(['Model Name : ' spectrometerName])
display(['Model S/N  : ' spectrometerSerialNumber]);

Set the parameters for spectrum acquisition.

% Set integration time.
invoke(spectrometerObj, 'setIntegrationTime', spectrometerIndex, channelIndex, integrationTime);
% Enable correct for detector non-linearity.
invoke(spectrometerObj, 'setCorrectForDetectorNonlinearity', spectrometerIndex, channelIndex, enable);
% Enable correct for electrical dark.
invoke(spectrometerObj, 'setCorrectForElectricalDark', spectrometerIndex, channelIndex, enable);

Aquire the spectrum.

wavelengths = invoke(spectrometerObj, 'getWavelengths', spectrometerIndex, channelIndex);
% Get the wavelengths of the first spectrometer and save them in a double
% array.
spectralData = invoke(spectrometerObj, 'getSpectrum', spectrometerIndex);

Plot the waveform.

    plot(wavelengths, spectralData);
    title('Optical Spectrum');
    ylabel('Intensity (counts)');
    xlabel('\lambda (nm)');
    grid on
    axis tight

Clean up.

disconnect(spectrometerObj);

delete (spectrometerObj);