Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Characteristics of a Double-Tube Structure for the Hydraulic WIM Sensor

  • Moon, Young-Soon (Dept. of Sensor and Display Eng., Kyungpook National University) ;
  • Son, Won-Ho (School of Electronics Eng., Kyungpook National University) ;
  • Choi, Sie-Young (School of Electronics Eng., Kyungpook National University)
  • Received : 2013.12.27
  • Accepted : 2014.01.17
  • Published : 2014.01.29
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Abstract

A new hydraulic tube structure for WIM sensor of a new generation is presented in this paper. The double-tube structure has been developed in order to improve the performance of the hydraulic load cell. The double-tube structure hydraulic element could be reduced by 46% in pressure changes according to temperature compared to a single-tube structure. In addition to the nonlinearity can be reduced by 67.19% at the same load condition. The hydraulic load cell shows an excellent linearity and measurement accuracy as the result of the static load test.

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References

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