| 深油井超声探测用的压电陶瓷换能器的研究 |
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| 引用本文： | 肖洪地,王成建,王矜奉.深油井超声探测用的压电陶瓷换能器的研究[J].功能材料与器件学报,2002,8(4):418-420. |
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| 作者姓名： | 肖洪地 王成建 王矜奉 |
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| 作者单位： | 山东大学物理与微电子学院,济南,250100 |
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| 摘 要： | 超声压电陶瓷换能器可以探测5000m以下深处的地质结构和油井固实程度。用于压电陶瓷换能器的PT－PSN陶瓷性能参数是，Tc=380℃,kt=45%,εr=420,tanδ=1.5%，Qm=2200，Ec=733V/mm。经实验测量和现场试验表明，在温度高达200℃时压电陶瓷换能器的性能稳定，测量精度高。
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| 关 键 词： | 超声探测 压电陶瓷换能器 PT－PSN陶瓷 测井 |
| 文章编号： | 1007-4252(2002)04-0418-03 |
| 修稿时间： | 2002年2月19日 |
Study on piezoelectric ceramic transducer used in ultrasonic detection of deep-oil-well |
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| XIAO Hong-di,WANG Cheng-jian,WANG Jin-feng.Study on piezoelectric ceramic transducer used in ultrasonic detection of deep-oil-well[J].Journal of Functional Materials and Devices,2002,8(4):418-420. |
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| Authors: | XIAO Hong-di WANG Cheng-jian WANG Jin-feng |
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| Abstract: | Ultrasonic detection method is an important method for the measureme nt of the geological structure and solidifying degree of deep-oil-well. The critical parts of thi s measuring method are two ultrasonic transducers which can detect the geological structure and solid ifying degree of oil wellwith depth beyond 5000m. The performance parameters of PT-PSN ceramics used i n piezoelectric ceramic transducer are Tc=380oC, kt=45%, ?r=420, tan?=1.5%, Qm=2200, Ec=73 3V/mm. The experimental measurements and field tests at 200oC show that these perform ances are stabile, and of high accuracy. |
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| Keywords: | ultrasonic detection method piezoelectric ceramic transducer PT-PSN ceramics |
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