超声波时差法检测技术在煤矿风速测量中的应用
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摘要
针对在煤矿高湿、高粉尘复杂环境下,现有矿用风速检测技术难以高精度测量低风速的情况,为实现对煤矿巷道风速0~0.3 m/s区间的高精度测量,克服传感器安装角度对风速测量精度的影响,提出将超声波时差法测风原理应用于煤矿风速测量的新方案。介绍了一种新型超声波传输时间精密测量算法,并优化了超声波立面对射探头结构和低功耗驱动方法。实验结果表明:该超声波时差法检测系统实现了对煤矿风速0~15.0 m/s的高精度测量,能够较好地满足煤矿使用要求,具有良好的经济效益。
In the complex environment of high humidity and high dust in coal mine,the existing technology of mining wind speed detection is difficult to achieve high precision measurement of low wind speed. In order to realize the high accuracy measurement of wind speed of roadway from 0 m/s to 0. 3 m/s and avoid the influence of the sensor installation angle on the measurement,this paper present a new method for applying the principle of ultrasonic time difference method to the measurement of wind speed in coal mine,introduced a new algorithm of precision measurement on ultrasonic transmission time.Furthermore,the structure of ultrasonic elevation and low power consumption was optimized. The results showed that this detection system achieves high precision measurement of wind speed from 0 m/s to 15. 0 m/s in coal mine,it can meet the requirements of the coal mine better and has good economic benefit.
In the complex environment of high humidity and high dust in coal mine,the existing technology of mining wind speed detection is difficult to achieve high precision measurement of low wind speed. In order to realize the high accuracy measurement of wind speed of roadway from 0 m/s to 0. 3 m/s and avoid the influence of the sensor installation angle on the measurement,this paper present a new method for applying the principle of ultrasonic time difference method to the measurement of wind speed in coal mine,introduced a new algorithm of precision measurement on ultrasonic transmission time.Furthermore,the structure of ultrasonic elevation and low power consumption was optimized. The results showed that this detection system achieves high precision measurement of wind speed from 0 m/s to 15. 0 m/s in coal mine,it can meet the requirements of the coal mine better and has good economic benefit.
引文
[1]王雪峰.基于时差法气体超声波流量计的关键技术研究[D].大连:大连理工大学,2011.
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[13]叶林,冯标,钟德华,等.功率曲线特性测试仪有效风速补偿算法的研究[J].风能,2016(8):58-61.
[14]王葵军,谢扩军.基于FPGA时差法超声波风速风向仪前端电路的设计[J].电测与仪表,2010,47(7):74-76.
[15]刘丽丽.煤矿用超声波式风速风向传感器设计[J].工矿自动化,2014,40(9):103-106.
[2]LI Q,FU Z,YUAN N.Effects of non-stationarity on the magnitude and sign scaling in the multi-scale vertical velocity increment[J].Physica A Statistical Mechanics&Its Applications,2014(12):9-16.
[3]柴倬君.双Pt矿用风速传感器的研究[D].南昌:东华理工大学,2016.
[4]董敏诗,杜文军.CW-1型超声波涡街风速传感器抗干扰及稳定性的研究[J].矿业安全与环保,2000,27(2):21-22.
[5]雷兴,孙远军,雷险峰.实用新型矿用风速传感器标校装置的研制[J].煤矿机械,2013,34(12):148-151.
[6]萨贤春,曹娟,王宁.一种矿井通风中精确测定风速的方法[J].工矿自动化,2014,40(7):99-103.
[7]张景钢,谢宏,陈柏封,等.矿井多风机联合运转公共风路问题研究[J].矿业安全与环保,2017,44(3):86-89.
[8]张东明,曹晓钟,马尚昌.二维超声波风速风向传感器设计[J].传感器与微系统,2015(10):110-113.
[9]游青山.一种矿用超声波风速传感器的设计[J].煤矿安全,2017,48(1):88-91.
[10]柏思忠.一种λ型互相关时差法超声波流量检测方法[J].自动化仪表,2016,37(2):82-85.
[11]马超.矿用超声波流量计系统设计[D].杭州:浙江理工大学,2016.
[12]张兴红,张慧,陈锡侯,等.一种精密测量超声波传输时间的方法[J].北京理工大学学报,2011,31(6):717-721.
[13]叶林,冯标,钟德华,等.功率曲线特性测试仪有效风速补偿算法的研究[J].风能,2016(8):58-61.
[14]王葵军,谢扩军.基于FPGA时差法超声波风速风向仪前端电路的设计[J].电测与仪表,2010,47(7):74-76.
[15]刘丽丽.煤矿用超声波式风速风向传感器设计[J].工矿自动化,2014,40(9):103-106.