| TURBULENCE MEASUREMENT INSTRUMENT WITH A SILICON PIEZORE-SISTANCE BEAM |
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| 作者姓名： | Zheng Gui-lin Guangdong Provincial Research Institute of Water Conservancy and Hydro-power Shougouling Shahe Guangzhou P. R. China |
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| 作者单位： | Zheng Gui-lin，Guangdong Provincial Research Institute of Water Conservancy and Hydro-power，Shougouling Shahe，Guangzhou 510610，P. R. China |
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| 摘 要： | A newly developed turbulence measurement instrument is introduced in the paper.The transducer of the device is based on the principle of the effect of silicon piezoresistance that isintegrated in a Wheatstone bridge on a pure silicon beam. At one end of the beam, a small lightball is installed as the target forced by the water flow. The other parts are prevented from thewater flow with a sophisticated stainless steel tube. The instrument can be used to measure turbu-lent velocities either in clear Water or in flows bearing hyperconcentration of sediment. It can al-so be used to measure velocities in both glass flume and model experiments as well as in pipe ex-periment by being mounted in a special way.
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TURBULENCE MEASUREMENT INSTRUMENT WITH A SILICON PIEZORE-SISTANCE BEAM |
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| Zheng Gui-lin,Guangdong Provincial Research Institute of Water Conservancy and Hydro-power,Shougouling Shahe,Guangzhou ,P. R. China.TURBULENCE MEASUREMENT INSTRUMENT WITH A SILICON PIEZORE-SISTANCE BEAM[J].Journal of Hydrodynamics,1992(2). |
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| Authors: | Zheng Gui-lin Guangdong Provincial Research Institute of Water Conservancy and Hydro-power Shougouling Shahe Guangzhou P R China |
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| Affiliation: | Zheng Gui-lin,Guangdong Provincial Research Institute of Water Conservancy and Hydro-power,Shougouling Shahe,Guangzhou 510610,P. R. China |
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| Abstract: | A newly developed turbulence measurement instrument is introduced in the paper. The transducer of the device is based on the principle of the effect of silicon piezoresistance that is integrated in a Wheatstone bridge on a pure silicon beam. At one end of the beam, a small light ball is installed as the target forced by the water flow. The other parts are prevented from the water flow with a sophisticated stainless steel tube. The instrument can be used to measure turbu- lent velocities either in clear Water or in flows bearing hyperconcentration of sediment. It can al- so be used to measure velocities in both glass flume and model experiments as well as in pipe ex- periment by being mounted in a special way. |
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| Keywords: | turbulence piezoresistance calibration |
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