基于FPGA和LoRa的燃烧室振动信号无线测试装置设计
Design of Wireless Testing Device for Combustion Chamber Vibration Signal Based on FPGA and LoRa
王峥岩 1洪应平 1张会新1
作者信息
- 1. 中北大学,电子测试技术国家重点实验室,微纳器件与系统教育部重点实验室
- 折叠
摘要
燃烧不稳定性问题可引起大幅的机械振动,严重影响发动机正常工作.为满足新型试验需求,针对传统燃烧室测试装置灵活性不足、可靠性差等问题,设计了一种基于FPGA和LoRa的燃烧室振动信号无线测试装置,以FPGA作为主控单元,将前端高速AD采集的振动传感器数据存入Flash,通过LoRa技术并结合以太网的高速运行,在PC端进行远程操控和数据处理.试验表明:该装置可以实现至少500 m开阔距离内待测燃烧室振动信号的可靠测试,工作稳定,实时性强.
Abstract
Combustion instability can cause large mechanical vibrations,which seriously affects the normal operation of the engine.In order to meet the new test needs,the problems of insufficient flexibility and poor reliability of traditional combustion chamber test devices were addressed.A wireless test device for combustion chamber vibration signal based on FPGA and LoRa was designed,with FPGA as the main control unit,the vibration sensor data collected by the front-end high-speed AD was stored in Flash,and the remote control and data processing were carried out on the PC side through LoRa technology and combined with the high-speed operation of Ethernet.The test shows that the device can reliably test the vibration signal of the combustion cham-ber to be tested within an open distance of at least 500 m,with stable operation and strong real-time performance.
关键词
燃烧稳定性/测试装置/LoRa/FPGA/振动信号Key words
combustion stability/test device/LoRa/FPGA/vibration signal引用本文复制引用
出版年
2024
NETL
NSTL
万方数据