Computer interface for a diode-array based spectrophotometer

Computer interface for a diode-array based spectrophotometer

Advantages of Photo Diode Array for UV-Vis Spectrophotometer

1 Preface All products are continuously being improved for better performance. Spectrometers have developed in many ways since the introduction of simple and moderately priced Spectrophotometers which were commercially available from the mid 1950’s. 1 Such improvements have enabled SCINCO to manufacture PDA type UV-Vis. Spectrophotometers. The scope and performance of conventional single channe...

Interface instrumentation between computer and spectrophotometer for reaction rate measurements.

An instrument interface which generates an output voltage level proportional to rate of change of an input voltage is described. The interface permits direct connection of routine spectrophotometric rate measurements to a real-time laboratory computer system. The form of the voltage level output enables the computer to read rates in the same manner as peaks are read for AutoAnalyzers, permittin...

Versatile IEEE-488 data acquisition and control routines for a diode array spectrophotometer

The UV-visible diode array spectrophotometer is a work-horse instrument for many laboratories. This article provides simple data acquisition and control routines in Microsoft QuickBasic for a HP-8452A diode array spectrophotometer interfaced to an IBM PC/XT/AT, or compatible, microcomputer. These allow capture of full spectra and measure absorbance at one or several wavelengths at preset time i...

Signal-to-noise optimization and evaluation of a home-made visible diode-array spectrophotometer

This paper describes a simple low-cost multichannel visible spectrophotometer built with an RL512G EGG-Reticon photodiode array. A symmetric Czerny-Turner optical design was employed; instrument control was via a single-board microcomputer based on the 8085 Intel microprocessor. Spectral intensity data are stored in the single-board's RAM and then transferred to an IBM-AT 3865X compatible micro...