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Sensors 2010, 10(9), 8452-8465; doi:10.3390/s100908452

A High-Sensitivity Hydraulic Load Cell for Small Kitchen Appliances

1,*  and 2
1 BSH Hišni aparati d.o.o., Savinjska cesta 30, 3331 Nazarje, Slovenia 2 Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia
* Author to whom correspondence should be addressed.
Received: 13 July 2010 / Revised: 18 August 2010 / Accepted: 6 September 2010 / Published: 9 September 2010
(This article belongs to the Section Chemical Sensors)
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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.
Keywords: Hydraulic load cell; FEM, sensor; weighing Hydraulic load cell; FEM, sensor; weighing
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Pačnik, R.; Novak, F. A High-Sensitivity Hydraulic Load Cell for Small Kitchen Appliances. Sensors 2010, 10, 8452-8465.

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