Experimental Verification and Analysis of Vibration Damping Structure of Piezoelectric Ceramic Grain Loss Sensor
In this study, in order to achieve accurate detection of grain loss during the process of combine harvester harvesting, a piezoelectric-based grain loss sensor has been developed. The sensor utilizes a double-layer circular piezoelectric ceramic sheet as its sensitive element. When different grains...
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MDPI AG
2023-04-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/9/5477 |
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| author | Jizhong Wang Fengzhu Wang Weipeng Zhang Yangchun Liu Bo Zhao Xianfa Fang |
| author_facet | Jizhong Wang Fengzhu Wang Weipeng Zhang Yangchun Liu Bo Zhao Xianfa Fang |
| author_sort | Jizhong Wang |
| collection | DOAJ |
| description | In this study, in order to achieve accurate detection of grain loss during the process of combine harvester harvesting, a piezoelectric-based grain loss sensor has been developed. The sensor utilizes a double-layer circular piezoelectric ceramic sheet as its sensitive element. When different grains come into contact with the sensitive element, the piezoelectric effect of the ceramic sheet generates corresponding charges. These charges are then converted into knock charge signals through a charge amplification signal processing circuit that has been specially designed for this purpose. The harsh operating conditions of the sensor, including the presence of significant vibration and noise interference, necessitate the incorporation of a double-layer vibration-damping structure in both the top and bottom layers of the sensor. This paper seeks to analyze the vibration-damping effect of various shock-absorbing materials and structures incorporated into the sensor. This is accomplished by creating a dynamic analysis model that accounts for vibration interference. Furthermore, an experimental bench is established for the purpose of verifying the vibration-damping test results. These tests demonstrate that the utilization of a properly selected vibration-damping structure and materials can effectively eliminate mechanical vibration and noise interference. This, in turn, leads to improved detection accuracy of charge signals after knocking and enhances the overall anti-interference ability of the sensor. |
| first_indexed | 2024-03-11T04:24:28Z |
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| id | doaj.art-b2b3aeb743f74dd895d68e554a790b16 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T04:24:28Z |
| publishDate | 2023-04-01 |
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| spelling | doaj.art-b2b3aeb743f74dd895d68e554a790b162023-11-17T22:34:34ZengMDPI AGApplied Sciences2076-34172023-04-01139547710.3390/app13095477Experimental Verification and Analysis of Vibration Damping Structure of Piezoelectric Ceramic Grain Loss SensorJizhong Wang0Fengzhu Wang1Weipeng Zhang2Yangchun Liu3Bo Zhao4Xianfa Fang5National Key Laboratory of Agricultural Equipment Technology, China Academy of Agricultural Mechanization Science Group Co., Ltd., Beijing 100083, ChinaNational Key Laboratory of Agricultural Equipment Technology, China Academy of Agricultural Mechanization Science Group Co., Ltd., Beijing 100083, ChinaNational Key Laboratory of Agricultural Equipment Technology, China Academy of Agricultural Mechanization Science Group Co., Ltd., Beijing 100083, ChinaNational Key Laboratory of Agricultural Equipment Technology, China Academy of Agricultural Mechanization Science Group Co., Ltd., Beijing 100083, ChinaNational Key Laboratory of Agricultural Equipment Technology, China Academy of Agricultural Mechanization Science Group Co., Ltd., Beijing 100083, ChinaNational Key Laboratory of Agricultural Equipment Technology, China Academy of Agricultural Mechanization Science Group Co., Ltd., Beijing 100083, ChinaIn this study, in order to achieve accurate detection of grain loss during the process of combine harvester harvesting, a piezoelectric-based grain loss sensor has been developed. The sensor utilizes a double-layer circular piezoelectric ceramic sheet as its sensitive element. When different grains come into contact with the sensitive element, the piezoelectric effect of the ceramic sheet generates corresponding charges. These charges are then converted into knock charge signals through a charge amplification signal processing circuit that has been specially designed for this purpose. The harsh operating conditions of the sensor, including the presence of significant vibration and noise interference, necessitate the incorporation of a double-layer vibration-damping structure in both the top and bottom layers of the sensor. This paper seeks to analyze the vibration-damping effect of various shock-absorbing materials and structures incorporated into the sensor. This is accomplished by creating a dynamic analysis model that accounts for vibration interference. Furthermore, an experimental bench is established for the purpose of verifying the vibration-damping test results. These tests demonstrate that the utilization of a properly selected vibration-damping structure and materials can effectively eliminate mechanical vibration and noise interference. This, in turn, leads to improved detection accuracy of charge signals after knocking and enhances the overall anti-interference ability of the sensor.https://www.mdpi.com/2076-3417/13/9/5477piezoelectric ceramicspiezoelectric effectloss sensorvibration damping structuredynamic model |
| spellingShingle | Jizhong Wang Fengzhu Wang Weipeng Zhang Yangchun Liu Bo Zhao Xianfa Fang Experimental Verification and Analysis of Vibration Damping Structure of Piezoelectric Ceramic Grain Loss Sensor Applied Sciences piezoelectric ceramics piezoelectric effect loss sensor vibration damping structure dynamic model |
| title | Experimental Verification and Analysis of Vibration Damping Structure of Piezoelectric Ceramic Grain Loss Sensor |
| title_full | Experimental Verification and Analysis of Vibration Damping Structure of Piezoelectric Ceramic Grain Loss Sensor |
| title_fullStr | Experimental Verification and Analysis of Vibration Damping Structure of Piezoelectric Ceramic Grain Loss Sensor |
| title_full_unstemmed | Experimental Verification and Analysis of Vibration Damping Structure of Piezoelectric Ceramic Grain Loss Sensor |
| title_short | Experimental Verification and Analysis of Vibration Damping Structure of Piezoelectric Ceramic Grain Loss Sensor |
| title_sort | experimental verification and analysis of vibration damping structure of piezoelectric ceramic grain loss sensor |
| topic | piezoelectric ceramics piezoelectric effect loss sensor vibration damping structure dynamic model |
| url | https://www.mdpi.com/2076-3417/13/9/5477 |
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