| 垂直摆倾斜仪灵敏度标定方法研究 |
| |
| 引用本文： | 施志龙,吴书朝.垂直摆倾斜仪灵敏度标定方法研究[J].测绘科学,2007,32(4):63-64. |
| |
| 作者姓名： | 施志龙 吴书朝 |
| |
| 作者单位： | 华中科技大学物理系,武汉,430074;华中科技大学物理系,武汉,430074 |
| |
| 摘 要： | 采用精度高达4.8×10-8rad的自准直仪作为倾斜标定基准,我们首次提出并实现了利用压电陶瓷(PZT)和自准直仪联合标定高精度垂直摆倾斜仪的方法。这是一种直接标定方法,并综合利用了PZT和自准直仪的优点:PZT直接让倾斜仪产生一个倾斜变化,同时用自准直仪直接测量这一倾斜变化又克服了PZT压电系数不准确的缺点。与间接标定方法相比,由于减少了中间参数的转换,因而其标定结果更加可信。
|
| 关 键 词： | 倾斜仪 灵敏度 标定 压电陶瓷(PZT) 自准直仪 |
| 文章编号： | 1009-2307（2007）04-0063-02 |
| 修稿时间： | 2006-04-24 |
Research on calibration of vertical pendulum tiltmeter |
| |
| SHI Zhi-long,WU Shu-chao.Research on calibration of vertical pendulum tiltmeter[J].Science of Surveying and Mapping,2007,32(4):63-64. |
| |
| Authors: | SHI Zhi-long WU Shu-chao |
| |
| Abstract: | The method of calibrating a vertical pendulum tiltmeter using a piezoelectric transducer (PZT) and an autocollimator with the precision of 4.8 10-8rad is first presented and performed. It is a kind of direct calibration method, which makes use of the advantages of the PZT and the autocollimator. The PZT can drive a tilt, but its piezoelectric coefficient is not accurate, so the autocollimator is used to monitor the tilt. Comparing with the indirect calibration method, the direct calibration method avoids the conversion process of the indirect parameters, so the calibration result is more reliable. |
| |
| Keywords: | tiltmeter sensitivity calibration piezoelectric transducer (PZT) autocollimator |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
