摘要
地磁异常的情况下,钻井或地质钻探必须使用不受磁力影响的陀螺测斜仪。介绍了双转子电磁补偿挠性支承陀螺测斜仪的原理和特点,研究了其专用硬件电路及误差补偿技术。实验表明,陀螺电源、传感器稳频稳幅电路和力矩伺服回路设计合理;通过数据处理方法对陀螺仪漂移进行补偿,使方位测量精度大为提高。设计基本满足测井的实际需要。
Gyroscope inclinometer is not interfered by outer abnormal magnetic field. This paper describes the principle, performance and purpose-designed circuits of a gyroscope inclinometer with electromagnetic compensation and flexible supporting structure. Its power supply, and frequency and amplitude stabilized circuit of sensor are reasonable designed; the transformation function analysis of the moment servo loop is presented; the precision of orientational measurement is enhanced with static error model to compensate the gyroscope＇s drift. The design of the gyroscope inclinometer could basically meet the requirement of well logging.
出处
《测井技术》
CAS
CSCD
2006年第6期580-582,共3页
Well Logging Technology
基金
西北工业大学英才培养计划资助
关键词
陀螺测斜仪
电磁补偿
挠性支承
稳频稳幅电路
力矩伺服回路
gyroscope inclinometer
electromagnetic compensation
flexible supporting
frequency and amplitude stabilized circuit
moment servo loop
