Low creep and hysteresis load cell based on a force to fluid pressure transformation

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Zwijze, Robert A.F. and Wiegerink, Remco J. and Krijnen, Gijs J.M. and Lammerink, Theo S.J. and Elwenspoek, Miko (1999) Low creep and hysteresis load cell based on a force to fluid pressure transformation. Sensors and Actuators A: Physical, 78 (2). pp. 74-80. ISSN 0924-4247

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Abstract:In this paper, a low-cost load cell (force sensor) is presented in which the force to be measured is transformed into a fluid pressure. The design consists of a boss, attached to a membrane, and a bucket-like structure which encloses a fluid volume. This geometry causes a force to be transformed into a pressure. We show that this transformation only depends on the geometrical parameters of the load cell and that it is independent of the Young's modulus of the membrane resulting in very low creep and hysteresis. Experimental results with loads up to 1000 kg show very good repeatability and are in close agreement with both analytical and numerical calculations.
Item Type:Article
Copyright:© 1999 Elsevier Science
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/14602
Official URL:http://dx.doi.org/10.1016/S0924-4247(99)00079-5
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