基于加速度监测落锤压力标定技术研究
摘要落锤压力标定装置是对压力传感器及测试系统实施准静态（或准动态）标定的常用装置，本文试图通过建立加速度-压力峰值模型，由加速度传感器监测重锤的撞击加速度峰值，而获得落锤压力标定装置的标定压力峰值，方便实现压力传感器的准静态（或准动态）标定。61404
本文首先分析了落锤压力标定装置的结构原理，研究了加速度-压力之间的理论模型；其次，设计了压力-加速度峰值模型辨识的总体方案，对实验中所用传感器进行了分析、选择；之后，经多次反复实验，得到一组加速度和压力峰值的实验数据，再对实验数据进行预处理，利用最小二乘法进行曲线拟合，得到了压力-加速度峰值之间的函数关系（模型）；最后，通过实验数据与拟合结果的比较、分析对压力-加速度峰值模型的辨识结果进行了初步评价。
毕业论文关键词 落锤压力标定装置 准动态标定 加速度传感器 压力传感器 曲线拟合
毕业设计说明书（论文）外文摘要
Title The research of Drop-hammer’s Pressure calibration technology based on measuring acceleration transducers Abstract
Drop-hammer pressure calibration system is a normal equipment for pressure measuring transducers and measuring systems processing Quasi-dynamic (or Quasi-static) calibration. The work is trying to build the acceleration - pressure peaks model, which can calculate calibrated pressure peaks of Drop-hammer pressure calibration system with acceleration transducer measured acceleration peaks, to make it convenient to process Quasi-dynamic (or Quasi-static) calibration.
In this paper，structural principles of Drop-hammer pressure calibration system is analyzed firstly; Second, overall program of building acceleration-pressure peaks model is designed and a decision is made that which transducers are appropriate; Then, a group of experimental data including acceleration and pressure peaks is obtained; Next, the group of experimental data is pre-processed by the method of Least Squares Curve Fitting and acceleration-pressure peaks function(model) can be built; Finally, based on data processing, the result of acceleration-pressure peaks model identification get a elementary evaluation.
Keywords Drop-hammer pressure calibration system, Quasi-dynamic calibration, acceleration transducer，pressure-measuring transducers，curve fitting
目 录
1 绪论 1
1.1 落锤压力标定技术研究的目的与意义 1
1.3 本论文的主要工作 3
1.4 本章小结 3
2 落锤压力标定装置压力—加速度关系的理论分析 4
2.1落锤压力标定装置的结构分析 4
2.2 压力—加速度峰值的理论模型 5
2.3本章小结 7
3 压力-加速度峰值模型辨识实验设计 8
3.1 总体方案设计 8
3.2 加速度监测传感器的选择 9
3.3 标准压力传感器的选择 10
3.4 本章小结 10
4 压力-加速度峰值模型辨识