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Statistics Of Sampled Data

• The graph above shows the counts v/s wavelength
  as specified by the filter center values in the
  Save Data Tab. Based on the number of pulses at
  every wavelength, the statistics of the data are
  shown. The points in pink show the maximum of all
  the pulses taken at that wavelength/filter wheel
  position. The points in green show the minimum
  and the points in black show the mean.

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Acquisition Source

• The Statistics of Sampled Data can display the
  values selected based on
• ?Ambient/Quiescent showing the change in
  background level
• ?Raw data It plots the reading as read from the
  PMT
• ?Background Raw Ambient This mode plots the
  observations with the background subtracted
• ?Photon Counts This shows the background
  subtracted counts converted back to photons.

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Samples at each Filter Location

• This graph shows the variation in the
  observations at each filter location. The X axis
  scales automatically with the number of samples
  selected. Ideally the variation should not be
  much.

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PMT Settings

• These settings are the same as in our PMT Data
  screen. We can specify the boxcar integrator
  controls through this screen. Please refer to the
  PMT data screen in our main laser control
  software presentation.

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Gain Settings

• This is a generic control to set the gains of PMT
  to a high ( gain 3200000, cap -470pF), medium
  (gain 1500000, cap -4700pF) or low (gain 1000,
  cap0.047uF) settings.

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Read/Write PMT Settings from RAM

• These buttons save the PMT Settings in the RAM
  located in the electronics board. The settings
  saved Points to collect, hz ( located within
  Reset and Run button ), PMT gain, capacitor,
  integration time and time to start integrate
  among other things. Use these buttons if you want
  to retain the PMT settings after power down.

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Make Settings Global

• This button makes the present PMT settings
  global. Every filter position has a PMT setting
  associated with it. For example, when the filter
  wheel moves to a a particular position, the
  software automatically loads the PMT settings for
  an optimal reading for those particular filter
  settings. By pressing the global button, the
  present PMT settings are loaded onto all the
  groups of controls in the Individual Filter
  Settings Page.

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Error Code

• This indicator shows if there is any kind of
  error in communicating with the Filter Wheel.

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Reset

• Resets the position of the filter wheel to the
  initial position.

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Position the Filter Wheel

• This control is a manual control in which we can
  take the filter wheel to any position we desire.

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Query Position of Filter Wheel

• Use this button to find out where the Filter
  Wheel is located at any moment. The indicator
  next to the button shows the current position of
  the filter wheel

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Status Of Positioning

• This indicator shows the status of positioning
  and any related errors.

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Serial Port

• Specify the method of communication to connect to
  the filter wheel.

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Sample Name

• Enter the present Sample Name. This string will
  be automatically associated with every data point
  recorded in the saved file

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Start Sampling

• By pressing this button, the system moves the
  filter wheel to positions specified by the filter
  position array sequence array. It moves to each
  position, sets the gain at that filter position
  as specified in the individual Filter Settings
  page, fires the laser, reads the PMT after 100uS,
  and then moves to the next position and repeats
  the process for all the positions specified in
  the filter position sequence array.

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No of ticks per filter position

• This control defines the number of times the
  LASER will pulse at any filter location. The mean
  of all the pulses at a filter location is taken
  and plotted. The min and max observations at any
  filter location are also displayed in the graph.

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Frequency of Ticks

• This control specifies the frequency at which the
  LASER pulses at any particular filter location

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Filter Position Sequence

• This array specifies the Filter Position
  Sequence. Depending on the sequence, the Filter
  wheel moves to position itself. For example, if
  we specify positions 1,5,6,3,9,etc, the filter
  wheel will move to position 1 first, then to
  position 5 and so on.

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Filter Position and Wavelength

• These LEDs, when lit show that the filter is
  located in a particular position. The indicator
  below the LED indicates the filter wavelength
  information.

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Individual Filter Settings

• This tab has a collection of all the gain
  settings used for every filter position. When the
  filter wheel moves to position 1, it configures
  the PMT electronics based on the gain, cap and
  time of acquisition settings on group 1 controls.
  When the filter wheel moves to position 2, the
  settings on group 2 controls are loaded, etc

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Master Software Controls

• The Diagnostics, Initial Setup, PMT Data and
  Laser Data tabs have similar functions as in our
  main Laser Control Software. The Save Data tab
  contains header information which we use to
  identify the sample we are testing. Please refer
  to our main Laser Control Interactive
  Presentation for further details

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STOP

• This button Stops the LabVIEW program. It shuts
  down the instrument correctly by making the Laser
  Stop Pulsing. It also shuts down and closes the
  communication lines.

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QUIT

• This button Stops the LabVIEW program. It shuts
  down the instrument correctly by making the Laser
  Stop Pulsing. It also shuts down and closes the
  communication lines. It then exits the program.

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Simple Software

• This button hides the complicated features of the
  software and makes only the simple features
  visible for ease of use.

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Description Of The Software

• This software shows our interface to a Spectral
  Products AB300-Series Automated Filter Wheel
  integrated with our standard Laser Control
  Software. The filter wheel is connected to the
  computer using the serial port.

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