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TDC-GP2

TDC-GP2的相关文献在2007年到2018年内共计60篇,主要集中在自动化技术、计算机技术、无线电电子学、电信技术、机械、仪表工业 等领域,其中期刊论文57篇、会议论文3篇、专利文献420493篇;相关期刊39种,包括四川大学学报(自然科学版)、仪表技术与传感器、中国仪器仪表等; 相关会议3种,包括第三届无损检测高等教育发展论坛暨电磁涡流无损检测技术交流会、全国第七届嵌入式系统与单片机学术交流会、第五届全国信息获取与处理学术会议等;TDC-GP2的相关文献由150位作者贡献,包括崔永俊、杨兵、张万江等。

TDC-GP2—发文量

期刊论文>

论文:57 占比:0.01%

会议论文>

论文:3 占比:0.00%

专利文献>

论文:420493 占比:99.99%

总计:420553篇

TDC-GP2—发文趋势图

TDC-GP2

-研究学者

  • 崔永俊
  • 杨兵
  • 张万江
  • 李康康
  • 李志勇
  • 孙昱
  • 张彬彬
  • 张衡
  • 徐东明
  • 李明伟
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 王生毅; 马宗敏; 李康康; 张真榕
    • 摘要: 为了解决以单片机为主控制器的倒车防碰撞系统精度不高、拓展性不强等问题,结合超声波测距原理,提出基于FPGA和TDC?GP2高精度的倒车防碰撞系统设计.该系统以FPGA芯片为主控制器,采用模块化思想进行设计,利用TDC?GP2高精度时差测量芯片测量超声波传播时差计算车尾与障碍物的垂直距离,使得系统测量距离实现mm级精度,同时实现距离语音提示和距离LED直观显示.经测试,该系统工作稳定、性能良好、精度高,可以成功应用于汽车的倒车系统中.%To resolve the problems such as low precision and weak extensibility of auto reversing anti-collision system which takes SCM as the main controller,a high-precision auto reversing anti-collision system based on FPGA and TDC-GP2 is designed by combining with the ultrasonic distance measurement principle. In the system,the FPGA chip is taken as the main controller,and the idea of modularized design is adopted. The high-precision time difference measurement chip TDC-GP2 is used to measure the time difference of ultrasonic propagation and calculate the vertical distance between the rear end of automo-bile and the obstacle,so as to achieve the MM-level precision of distance measurement for the system and meanwhile achieve the voice prompt and LED visual display of the distance. The test shows that the system operates stably,has good performance and high precision,and can be successfully applied to the auto reversing system.
    • 李康康; 崔永俊
    • 摘要: 为解决传统液体介质密度计测量精度低、维护不易、不能实时测量的问题,基于超声波时差法测量原理,利用高速时间数字转换芯片TDC-GP2,设计了一款新型高精度低功耗的超声波液体介质密度计.TDC-GP 2芯片精确测量超声波在待测液体介质中一定距离下的传播时间,再结合超声波在液体介质中传播时传播速度受液体介质密度影响的特性,来间接实现该待测液体介质密度的精确测量.实验测试结果表明,设计测量绝对误差小于0.0004 g/cm3,相对误差比小于0.04%,满足工业生产使用标准,具有较强的推广价值.
    • 李康康; 崔永俊; 杨卫鹏
    • 摘要: Aiming at the need of high precision density detection for small diameter and low velocity multi-pipe conveying system of chemical raw materials for chemical enterprises, a method of ultrasonic time difference density measurement based on wireless network was proposed. The system used the CC2530 chip as the control core to form the ZigBee wireless network. The terminal used the high precision time difference measurement chip TDC-GP2 to realize the accurate measurement of the transmis-sion time difference. The gateway device received the terminal measurement data and uploaded it to the industrial computer plat-form. The results show that the system can realize the continuous and stable measurement of high density of liquid multi-channel for a long time. The error is less than 0.5%.%针对化工企业强腐性液体原材料小口径、低流速多管道输送系统对高精度密度检测的需求,提出一种结合无线网络的超声波时差法密度测量方法.系统采用CC2530芯片为控制核心,组成Zig-Bee无线网络,终端利用高精度时差测量芯片TDC-GP2实现传输时差的准确测量,网关设备接收终端测量数据,并上传给工控机平台.测试表明:系统可以实现液体密度多通道长时间的连续稳定高精度测量,误差小于0.5%.
    • 崔永俊; 张彬彬; 杨兵
    • 摘要: 为了实现高精度的热量值测量,设计了基于TDC-GP2的时差法超声波热量测量系统.系统采用超声波换能器和铂电阻温度传感器PT1000为敏感单元,TDC-GP2为测试单元,结合FPGA与上位机,最终实现了数据的采集、传输和处理功能.经过测试,系统流量测量误差在±0.5%以内,温度测量偏差不超过0.5 °C,热量值测量误差优于±0.3%,达到了《热能表检定规程》的标准.%In order to achieve high precision of calorific value measurement,the design of ultrasonic heat measurement system is based on TDC-GP2.The system uses platinum resistance temperature sensor PT1000 and ultrasonic transducer as sensitive units,TDC-GP2 as testing unit,and the combination of FPGA and PC to realize the acquisition,processing and transmission of data.Through the test,the maximum measurement error is less than 3%,the maximum error of temperature measurement is less than 0.5 °C,Calorific value measurement error is better than 0.3%.
    • 崔永俊; 刘阳; 杨兵
    • 摘要: Combined with the latest Time-to-Digital Converter technology, a high-precision time reference measure-ment system design is put forward,which is based on rubidium disciplined crystal oscillator and double TDC-GP2 for the problem of the low precision, low resolution, small measuring range and design complex of the precision time benchmark for the moment. Combined with FPGA and PC then the high precision,high resolution and large range continuous measurement of the time base error were realized based on simplified design. After testing, the system measurement range is 1 ns~1 s,the resolution reaches 100 ps,the precision up to 0.0015%±0.3 ns,which meets the design requirements.%针对目前精密时间基准测试仪测量精度低、分辨率低、测量范围小、设计复杂等不足,结合最新的时间-数字转换技术,设计了基于铷原子钟和双TDC-GP2的高精度时间基准测量系统.结合FPGA和上位机,在简化设计的基础上实现了时间基准偏差的高精度、高分辨率、大量程连续测量.经过测试,系统测量量程为1 ns~1 s,时差测量分辨率达到100 Ps,精度达0.0015%±0.3 ns,满足设计要求.
    • 张涛
    • 摘要: 超声波管道流量计的研发重点是对超声波在管道液体中顺流和逆流时差的测量,并通过信号处理等办法,将时间信息换算为速度信息,再转换为管道流体所对应的流量信息.采用高精度时差芯片TDC-GP2实现对超声波管道流量计中的声波时间差的测量.论述了时差法超声波管道流量计的基本原理,介绍了TDC-GP2时间测量芯片的功能原理和使用方法,简述了相关硬件电路和系统构成.结合以上原理方法,论证了超声波流量计可行的技术方案;通过对时差法测量原理的研究,设计了相关时差测量电路,以及显示电路、信号处理电路等电路,并完成了设备的调试和组装.超声波流量计可以有效解决非介入式的管道液体、气体等流量的实时测量.%The research priority of ultrasonic flow meter is measuring the time difference between ultrasonic through in the upstream and downstream of a conduit that having iquid flowing.Then the signal processing and other related method will be used to convert the time information into velocity information.Finally,the corresponding flow information of pipeline fluid will be calculated.In the paper,high-precision time measurement chip TDC-GP2 was applied to realize the measurement of time difference by ultrasonic flowmeter.The basic research and measuring principle of the time difference method ultrasonic pipe flow meter were discussed,on the one hand,the functional theory and application method of high-precision time measurement chip TDC-GP2 have been introduced,on the other hand,the corresponding circuit design and system structure analysis have been presented as well.Combining the above principles approach and theories,the feasible technical proposal of ultrasonic flowmeter has been provided,and based on study of the principle of time difference measurement,the time difference measurement circuit,the display circuit and the signal processing circuit are designed.Ultrasonic flowmeter can effectively solve the pipeline gas liquid,non intrusive real-time flow measurement.
    • 杨兵; 崔永俊
    • 摘要: Based on high precision and reliability of the design idea and in view of the traditional ultrasonic flowme⁃ters the accuracy is not high and the circuit is complicated and the pipeline requires a modification. A design of flowmeter system is proposed based on FPGA and TDC-GP2 high precision time measurement chip. Using FPGA as the core of logic control module, and the principle of time difference method of ultrasonic flow meter, TDC-GP 2 was made to achieve the precise measurement of time difference,the upload data were sent through the serial port to the host computer for data processing and results display. The results show that the accuracy and reliability of the sys⁃tem meet the requirements of the system.%基于高精度和可靠性的设计思想,针对传统型超声波流量计精度不高、电路复杂和需要对管道进行改装的问题,提出了一种基于FPGA和TDC-GP2高精度时间测量芯片的流量计系统设计。以FPGA为核心逻辑控制模块,结合时差法超声波流量计的原理,采用TDC-GP2实现时差的精确测量,通过串口上传数据给上位机进行数据处理和结果显示。测试结果表明,系统测量精确度和可靠性满足要求。
    • 张彬彬; 崔永俊; 杨兵
    • 摘要: In order to realize the time synchronization in satellite positioning system,a high precision and high reso⁃lution time interval measurement system is designed. Using two time digital converter chip TDC-GP2,the pulse counting method and digital interpolation method are combined,The result shows that the measurement accuracy of the system is 1 ns,the resolution is 100 ps,the measuring range is up to 1 ns~1 s. With the advantages of small size, high accuracy,and flexibility it can be widely used in different time synchronization system.%为了实现卫星定位系统中的时间同步,设计了一种高精度、高分辨率的时间间隔测量系统。采用两片时间-数字转换芯片TDC-GP2,将脉冲计数法和数字内插法相结合,使测量精确度能够达到1 ns,分辨率可以达到100 ps,量程范围可达1 ns~1 s;具有体积小、精度高、使用灵活等优点,能够广泛的应用到不同的时间同步系统中。
    • 张秀艳; 王永慧
    • 摘要: For multiple complex area of small-bore pipeline and low velocity of flow monitoring reality needs , com-bined with the design thought of the low energy consumption and high precision in this paper , a ultrasonic flow meas-urement method combining with wireless sensor network and the time differences is proposed in this paper , and intro-duces the software and hardware design in detail .CC2530 as the control core is used in designing of ZigBee wireless sensor network , terminal equipment control TDC-GP2 chip to realize high precision transmission time difference meas-urement.The coordinator device receives each terminal measurement data , and through a serial port to industrial plat-form for processing display and storage .The test results show that the system can realize multi-channel long time con-tinuous steady flow monitoring with high measurement precision , which has a certain popularization value .%针对复杂区域内多个小口径、低流速管道进行流量监测的现实需要,结合低能耗和高精度的设计思想,提出一种结合无线传感网络和时差法超声波流量测量的方法,并详细介绍了软硬件设计。设计采用CC2530为控制核心,组成ZigBee无线传感网络,终端设备控制TDC-GP2芯片实现高精度的传输时差测量,协调器设备接收各个终端的测量数据,并通过串口上传给工控机平台进行处理显示和存储。测试结果表明系统可以实现多通道的长时间连续稳定流量监测,测量精度高,具有一定的推广价值。
    • 王清; 于娜; 梁舒
    • 摘要: 为满足工业燃气表接入工程现场的要求,改进了工业燃气表的流量检测模块.该模块基于高精度低功耗时间测量芯片TDC-GP2,详细规划了模块的组成,介绍了软件工作流程.针对工业燃气表自身特点设计的检测软件可以判断超声波信号质量,排除由于扰流等造成的测量误差,实现了数据传输和仪表控制.线路改用TDC-GP2芯片后消除了温度和管道对声速和流体造成的非线性误差,保证了检测的可靠性.实验证明:模块通过信号筛选准确判断了超声波信号的到达时刻,实现了上位机对燃气表的精准控制和可靠通信传输,使得系统精度进一步提升,并使其容错处理和抗干扰性能都优于之前.
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