| Analysis and measurement of acoustic power in plastics ultrasonic welding process |
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| 作者姓名： | 闫久春 李冬青 董震 杨士勤 |
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| 作者单位： | YAN Jiuchun，LI Dongqing，DONG Zhen and YANG Shiqin，National Key Laboralory of Advanced Welding Production Technology，Harbin Institute of Technology，Harbin，150001 |
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| 摘 要： | A measuring principle for acoustic power in plastics ultrasonic welding process is introduced in this paper.Signal detection circuits of current,voltage,frequency,power for ultrasonic transducer of plasticdeveloped.A computer controlled measuring system is designed to sample the signals of welding proeess parameters.Byusing the designed system,the acoustic power curve during welding is calculated,saved,relation between fusion state of plastics workpieces and input energy of joint is analyzed.
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Analysis and measurement of acoustic power in plastics ultrasonic welding process |
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| YAN Jiuchun,LI Dongqing,DONG Zhen and YANG Shiqin,National Key Laboralory of Advanced Welding Production Technology,Harbin Institute of Technology,Harbin.Analysis and measurement of acoustic power in plastics ultrasonic welding process[J].China Welding,1998(2). |
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| Authors: | YAN Jiuchun LI Dongqing DONG Zhen and YANG Shiqin National Key Laboralory of Advanced Welding Production Technology Harbin Institute of Technology Harbin |
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| Affiliation: | YAN Jiuchun,LI Dongqing,DONG Zhen and YANG Shiqin,National Key Laboralory of Advanced Welding Production Technology,Harbin Institute of Technology,Harbin,150001 |
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| Abstract: | A measuring principle for acoustic power in plastics ultrasonic welding process is introduced in this paper. Signal detection circuits of current, voltage, frequency, power for ultrasonic transducer of plastic ultrasonic welder are developed. A computer controlled measuring system is designed to sample the signals of welding process parameters. By using the designed system, the acoustic power curve during welding is calculated, saved, and displayed. And the relation between fusion state of plastics workpieces and input energy of joint is analyzed. |
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| Keywords: | ultrasonic welding acoustic power power measurement |
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