VIRTUAL ELECTRONIC SCALES

D. Kovacevic, S. Skundric, B. Dimitrijevic

Abstract

The paper presents a new concept of virtual electronic scales (VES) conceived as a PC peripheral. The traditional approach, “specific scales for specific application”, has dominated the development and production of both mechanical and state-of-the-art electronic scales. The main aim of this paper is to promote a PCbased approach – electronic weight scales as a virtual instruments. The paper offers a detailed presentation of originally developed hardware and software structures of VES called Soft Scales, based on strain-gauge load cells, of 2 ... 200 kg measurement range, accuracy class III, up to 10,000 scale intervals. Finally, a list of specific applications and realisation of both trade scales and body mass index measurement sistem as a virtual instruments, together with a brief measurement-technical comparison between the classical and PC-based approach are presented.

Keywords

computer-based measurement, virtual instrumentation, electronic weigh scales, sensors, transducers

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IMEKO-WC-2000-TC4-P138.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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