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      A High-Sensitivity Hydraulic Load Cell for Small Kitchen Appliances

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          Abstract

          In this paper we present a hydraulic load cell made from hydroformed metallic bellows. The load cell was designed for a small kitchen appliance with the weighing function integrated into the composite control and protection of the appliance. It is a simple, low-cost solution with small dimensions and represents an alternative to the existing hydraulic load cells in industrial use. A good non-linearity and a small hysteresis were achieved. The influence of temperature leads to an error of 7.5%, which can be compensated for by software to meet the requirements of the target application.

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          Improving the Response of a Load Cell by Using Optimal Filtering

          Wilmar Hernandez (2006)
          Load cells are transducers used to measure force or weight. Despite the fact that there is a wide variety of load cells, most of these transducers that are used in the weighing industry are based on strain gauges. In this paper, an s-beam load cell based on strain gauges was suitably assembled to the mechanical structure of several seats of a bus under performance tests and used to measure the resistance of their mechanical structure to tension forces applied horizontally to the seats being tested. The load cell was buried in a broad-band noise background where the unwanted information and the relevant signal sometimes share a very similar frequency spectrum and its performance was improved by using a recursive least-squares (RLS) lattice algorithm. The experimental results are satisfactory and a significant improvement in the signal-to-noise ratio at the system output of 27 dB was achieved, which is a good performance factor for judging the quality of the system.
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            Handbook of Modern Sensors. Physics, Designs, and Applications

            J. Fraden (2010)
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              Finite Element Analysis: Theory and Application with ANSYS

              S Moaveni (2008)
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                Author and article information

                Journal
                Journal ID (nlm-ta): Sensors (Basel)
                Title: Sensors (Basel, Switzerland)
                Publisher: Molecular Diversity Preservation International (MDPI)
                ISSN (Electronic): 1424-8220
                Publication date Collection: 2010
                Publication date (Electronic): 9 September 2010
                Volume: 10
                Issue: 9
                Pages: 8452-8465
                Affiliations
                [1 ] BSH Hišni aparati d.o.o., Savinjska cesta 30, 3331 Nazarje, Slovenia
                [2 ] Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia; E-Mail: franc.novak@ 123456ijs.si
                Author notes
                [* ]Author to whom correspondence should be addressed; E-Mail: roman.pacnik@ 123456bshg.com ; Tel.: +386-1-4773-264; Fax: +386-1-2519-385.
                Article
                Publisher ID: sensors-10-08452
                DOI: 10.3390/s100908452
                PMC ID: 3231213
                PubMed ID: 22163665
                SO-VID: 58a589a2-4620-47e9-9ab5-d5af8109f770
                Copyright © © 2010 by the authors; licensee MDPI, Basel, Switzerland.
                License:

                This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license ( http://creativecommons.org/licenses/by/3.0/).

                History
                Date received : 13 July 2010
                Date revision received : 18 August 2010
                Date accepted : 6 September 2010
                Categories
                Subject: Article

                ScienceOpen disciplines: Biomedical engineering
                Keywords: fem, sensor,weighing,hydraulic load cell
                Data availability:
                ScienceOpen disciplines: Biomedical engineering
                Keywords: fem, sensor, weighing, hydraulic load cell

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