FU UVVIS

This is a collection of utilities for the Ocean Insight Spectrometers

Prerequisites

pip install matplotlib numpy seabreeze

Installation

git clone https://github.com/padalev/FU-UVVIS
cd FU-UVVIS
pip install -e .

Usage

Initialization

m = UVVIS.Measurement( integrationtime = 4000, averages = 30)

Set Dark

m.setdark()

Live plot of spectrum will open for reference. Confirm by clicking anywhere on the plot or press a key.

Set Light

m.setlight()

Live plot of spectrum will open for reference. Confirm by clicking anywhere on the plot or press a key.

Scope

m.scope(name='testSample')

Will show a live plot of the bare spectrum with averages applied. If name is set resulting data will be saved to file. Returns Scope array.

Absorbance Measurement

m.absorbance(='testSample')

Live plot of spectrum and absorbance will open for reference. Confirm by clicking anywhere on the plot or press a key. If name is set resulting data will be saved to file. Requires set dark and light spectra. Returns absorbance array.

Irradiance Measurement

m.irradiance(='testSample')

Live plot of spectrum and irradiance will open for reference. Confirm by clicking anywhere on the plot or press a key. If name is set resulting data will be saved to file. Requires set dark spectrum. Returns irradiance array.

Set Averages

m.setaverages(n)

Number of averages can be changed any time. Dark and Light spectrum will have to be set again afterwards before actual measurement.

Set Integration Time

m.setintegrationtime(t = None, auto = False)

Integration time can be set at any time in units of microseconds. Dark and Light spectrum will have to be set again afterwards before actual measurement. If t is set to a number it will be used as the new integration time. If auto is set to True the integration time will be determined automatically by maximizing the spectral maximum. Else a window will open for manual integration time setting (todo).

Measuring without live plot

m.liveplot = False

will deactivate plotting. Data is taken and saved immediately.

Example

The following code will first ask for a light spectrum, then for a dark spectrum. Then three absorbance measurements of the samples are made using the list of sample names.

import UVVIS

m = UVVIS.Measurement(4000,30)
m.setlight()
m.setdark()
samples = ['sample_0','sample_1','sample_2']
for sample in samples:
  m.absorbance(sample)