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Sensors 2012, 12(6), 6978-6994; doi:10.3390/s120606978
Article

Use of Finite Elements Analysis for a Weigh-in-Motion Sensor Design

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Received: 4 April 2012; in revised form: 14 May 2012 / Accepted: 14 May 2012 / Published: 25 May 2012
(This article belongs to the Section Physical Sensors)
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Abstract: High speed weigh-in-motion (WIM) sensors are utilized as components of complex traffic monitoring and measurement systems. They should be able to determine the weights on wheels, axles and vehicle gross weights, and to help the classification of vehicles (depending on the number of axles). WIM sensors must meet the following main requirements: good accuracy, high endurance, low price and easy installation in the road structure. It is not advisable to use cheap materials in constructing these devices for lower prices, since the sensors are normally working in harsh environmental conditions such as temperatures between –40 °C and +70 °C, dust, temporary water immersion, shocks and vibrations. Consequently, less expensive manufacturing technologies are recommended. Because the installation cost in the road structure is high and proportional to the WIM sensor cross section (especially with its thickness), the device needs to be made as flat as possible. The WIM sensor model presented and analyzed in this paper uses a spring element equipped with strain gages. Using Finite Element Analysis (FEA), the authors have attempted to obtain a more sensitive, reliable, lower profile and overall cheaper elastic element for a new WIM sensor.
Keywords: weigh in motion; WIM sensor; shear force sensors; optimization; sensitivity; durability weigh in motion; WIM sensor; shear force sensors; optimization; sensitivity; durability
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Opitz, R.; Goanta, V.; Carlescu, P.; Barsanescu, P.-D.; Taranu, N.; Banu, O. Use of Finite Elements Analysis for a Weigh-in-Motion Sensor Design. Sensors 2012, 12, 6978-6994.

AMA Style

Opitz R, Goanta V, Carlescu P, Barsanescu P-D, Taranu N, Banu O. Use of Finite Elements Analysis for a Weigh-in-Motion Sensor Design. Sensors. 2012; 12(6):6978-6994.

Chicago/Turabian Style

Opitz, Rigobert; Goanta, Viorel; Carlescu, Petru; Barsanescu, Paul-Doru; Taranu, Nicolae; Banu, Oana. 2012. "Use of Finite Elements Analysis for a Weigh-in-Motion Sensor Design." Sensors 12, no. 6: 6978-6994.



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