广的温度范围和低温漂流流流位移传感器使用数字关联调节
Tianxiang Ma1,2, Yuting Han2,3, Yongsen Xu2
1Information and Communication Engineering, School of Electronic and Information Engineering, Changchun University of Science and Technology, Changchun 130022, China.
Sensors (Basel, Switzerland)
|July 11, 2023
概括
一个新的微分数字解调旋流传感器系统显著降低了温度漂移. 这项创新提高了在可变温度环境中无接触测量的精度.
科学领域:
- * 仪器仪表与测量科学 * 仪表仪表与测量科学
- * 传感器技术 * 传感器技术
- * * 信号处理 信号处理
背景情况:
- *传统的旋流传感器为微位移和旋转速度传感等应用提供无接触测量,高带宽和灵敏度.
- * 传统的旋流传感器的一个主要局限性是它们易受温度偏移的影响,这会影响测量准确度.
- *克服温度引起的不准确性对于在各种环境条件下可靠的传感器性能至关重要.
研究的目的:
- * 设计和评估一个微分数字解调流传感器系统.
- *为了减轻温度漂移对传感器输出准确度的影响.
- * 为了实现高精度和灵活性,用于具有显著温度变化的应用程序的流传感.
主要方法:
- * 实现差分传感器探测器以取消常态温度干扰.
- *使用高速模拟数字转换器 (ADC) 数字化微分模拟载波信号.
- *通过双相关解调方法在现场可编程门数组 (FPGA) 中提取振幅信息.
主要成果:
- *开发的传感器在±2.5毫米范围内显示了0.68%的非线性.
- * 实现了760nm的高分辨率和25kHz的最大带宽.
- * 与传统的模拟解调技术相比,显著抑制了温度漂移.
结论:
- *差分数位解调旋流传感器系统提供高精度和低温漂移.
- * 传感器的设计为经历大温度波动的应用提供了增强的灵活性.
- * 这种先进的传感器系统可以在具有挑战性的温度变化的环境中有效地取代传统传感器.
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