Sensors 2006, 6(7), 697-711; doi:10.3390/s6070697

Improving the Response of a Load Cell by Using Optimal Filtering

Received: 26 April 2006; Accepted: 28 July 2006 / Published: 21 July 2006
(This article belongs to the Special Issue Intelligent Sensors)
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Abstract: Load cells are transducers used to measure force or weight. Despite the fact thatthere is a wide variety of load cells, most of these transducers that are used in the weighingindustry are based on strain gauges. In this paper, an s-beam load cell based on strain gaugeswas suitably assembled to the mechanical structure of several seats of a bus underperformance tests and used to measure the resistance of their mechanical structure to tensionforces 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 sometimesshare a very similar frequency spectrum and its performance was improved by using arecursive least-squares (RLS) lattice algorithm. The experimental results are satisfactoryand a significant improvement in the signal-to-noise ratio at the system output of 27 dB wasachieved, which is a good performance factor for judging the quality of the system.
Keywords: strain gauge; load cell; adaptive noise canceller; recursive least-squares lattice adaptive filter
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MDPI and ACS Style

Hernandez, W. Improving the Response of a Load Cell by Using Optimal Filtering. Sensors 2006, 6, 697-711.

AMA Style

Hernandez W. Improving the Response of a Load Cell by Using Optimal Filtering. Sensors. 2006; 6(7):697-711.

Chicago/Turabian Style

Hernandez, Wilmar. 2006. "Improving the Response of a Load Cell by Using Optimal Filtering." Sensors 6, no. 7: 697-711.

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