Personal computer-based visible spectrophotometer design

Computer interface for a diode-array based spectrophotometer

Portable visible and near-infrared spectrophotometer for triglyceride measurements.

An affordable and portable machine is required for the practical use of visible and near-infrared (Vis-NIR) spectroscopy. A portable fruit tester comprising a Vis-NIR spectrophotometer was modified for use in the transmittance mode and employed to quantify triglyceride levels in serum in combination with a chemometric analysis. Transmittance spectra collected in the 600- to 1100-nm region were ...

Design and evaluation of an image-dissector-based derivative spectrophotometer

USA use that can lead to signal distortion and care must be exercised to avoid this. Several authors have reviewed the advantages of derivative spectroscopy in discriminating overlapping spectra in the quantitation of components in mixtures, and in resolving spectral information from background information [1 and 2]. Methods used to generate derivative spectra have included mechanical modulatio...

Personal Computer Support for Teaching Analog Filter Analysis and Design

This paper describes a computer-aided design program for analog filter synthesis, FILTER, which enhances the effectiveness of teaching analog filter analysis and design. Initially, FILTER was developed to support related courses in the Department of Electrical Engineering at the University of Wyoming, but eventually its scope went beyond that intent. This program very effectively fills the gap ...

Design and Implementation of a Personal Super Computer

Resources of personal devices, whether mobile or stationary, can be productively leveraged to service their users. By doing so, personal users will be able to ubiquitously run relatively complex computational jobs, which cannot be accommodated in their individual personal devices or while they are on the move. To this end, the paper proposes a Personal Super Computer (PSC) that superimpose grid...