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介绍新研制成功的精密磨床砂轮半自动平衡仪。该仪器利用数字相敏检波技术提取砂轮的不平衡振动信号及最小二乘技术识别砂轮不平衡量；设计出友善的人机界面，用于提示、指导识别与平衡过程；仪器的绝大部分功能均由软件完成，成本低，可靠性高。试验表明仪器原理正确，平衡精度高。
Introduced newly developed precision grinding machine semi-automatic wheel balancer. The instrument utilizes digital phase-sensitive detection technology to extract the unbalance vibration signal of the grinding wheel and the least squares technique to identify the unbalance of the grinding wheel; a friendly man-machine interface is designed to prompt and guide the identification and balance process; most of the functions of the instrument Completed by software, low cost and high reliability. The test shows that the principle of the instrument is correct and the balance precision is high.