影响相关测速精度的因素及改进措施

The Factors and Improvement Measures for Accuracy of Correlation Velocity Measurement

相关测速是利用光、声、磁、温等敏感场而制成,由传感器、信号处理和显示输出等环节构成的一种测量系统,具有非接触、抗干扰性强、实时性好和精度高等特点。文章介绍相关测速的基本原理,分析影响相关测速精度的因素,探讨传感器安装位置、相关运算实时简化误差和离散采样误差对相关测速精度的影响,并提出相应的改进措施。

Correlation velocity measurement is built with sensitive field such as light,sound and so on.It is a measurement system that includes sensor,signal and display output,and has characteristics such as high accuracy and instant.The basic principle of the correlation velocity measurement is introduced,the influence factors for accuracy of the correlation velocity measurement are analyzed,the installation position of the sensor,the real-time simplification error and discrete sampling error are discussed,and the corresponding improvement measures are provided.