Interface for Feeding Analogue Data to a Microcomputer
Author Information
Author(s): L. Ebdon, J. I. Garcia Alonso, S. J. Hill, A. Hopkins
Primary Institution: Department of Environmental Sciences, Plymouth Polytechnic
Hypothesis
The study investigates the development of a simple interface to convert analogue data from analytical instruments for use with a microcomputer.
Conclusion
The developed interface is simple, reliable, and suitable for various analytical applications, demonstrating excellent linearity in transformed data.
Supporting Evidence
- The interface can handle transient signals effectively.
- Excellent linearity was observed in transformed data.
- The interface is particularly suited for applications in atomic absorption spectrometry and high performance liquid chromatography.
Takeaway
This study shows how to connect old analytical machines to modern computers so we can better understand the data they produce.
Methodology
The interface amplifies the analogue voltage from an atomic absorption spectrometer and converts it to digital values using a BBC microcomputer.
Limitations
The study does not specify limitations but notes the inherent noise problems with chart-recorders.
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