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Description: 时差法在超声波测量流量中的应用程序,原吗利用相关法求得时差-time difference in ultrasonic flow measurement applications, the original use of the relevant law? Seek TDOA
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Size: 1211 |
Author: weixiangzhuan |
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Description: 时差法在超声波测量流量中的应用程序,原吗利用相关法求得时差-time difference in ultrasonic flow measurement applications, the original use of the relevant law? Seek TDOA
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Size: 1024 |
Author: weixiangzhuan |
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Description: UF911A 超声波流量量测系统是根据超声波的有关原理对流量进行测量的装置。文中对该
系统的原理、结构、功能和在工程应用中遇到的问题及其解决办法进行了简单介绍。-UF911A ultrasonic flow measurement system is based on the principle of ultrasonic flow measurement devices. In this paper, the principle of the system, structure, functions and applications in engineering problems encountered and their solutions for a simple introduction.
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Size: 132096 |
Author: 李明 |
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Description: 利用超声波传感器与AT89C51单片机来进行液体流量测量。一、 超声波发射电路：二、 超声波检测接收电路三、 流量显示电路四、 超声波测量流量应用仪的工作原理：-The use of ultrasonic sensors with AT89C51 single-chip for liquid flow measurement. First, ultrasonic transmitter: the Second, ultrasonic detection circuit to receive three to four traffic display circuit, the application of ultrasonic flow measurement instrument works:
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Size: 175104 |
Author: 陈灿 |
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Description: 超声波测量电路设计利用超声波来实现距离、速度、流量、浓度等的检测 ,具有其他检测方法无法比拟的显
优点。-Using ultrasonic ultrasonic measuring circuit to achieve distance, speed, flow, concentration of detection, other detection methods have significant advantages unmatched.
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Size: 130048 |
Author: queqiao |
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Description: 基于超声波测距程序流程图及其简单的说明过程-Based on Ultrasonic process flow diagram of a simple description of the process
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Size: 55296 |
Author: yzy |
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Description: 该文章是浙大一研究生的毕业论文，本人只是转摘，其讲述了超声波气体流量计的实现方案，该产品已经成功应用于一些大型钢厂中
如需技术探讨，可与我联系：cim_twj@yahoo.com.cn-The article is a graduate of Zhejiang University thesis, I only selections, which describes the realization of ultrasonic gas flow meter program, the product has been successfully applied to large steel mills in the For Technology can contact me: cim_twj @ yahoo . com.cn
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Size: 7515136 |
Author: tianwenjun |
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Description: 一份描述超声波气体流量计的研制开发的文档，对此类开发有意义。-A description of the research and development of ultrasonic gas flow meter documentation for this type of development makes sense.
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Size: 315392 |
Author: feiyang |
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Description: 这是用单片机控制时间测量芯片tdc-gp2，用超声波测量液体流量的代码-This is the time measurement chip with the MCU control tdc-gp2, using ultrasonic measurement of liquid flow code
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Size: 1024 |
Author: 张青政 |
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Description: 神经网络改进算法在超声波流量测量中的应用-Improved neural network algorithm in the application of ultrasonic flow measurement
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Size: 225280 |
Author: han012 |
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Description: 本文件详细描述单片机的超声波的设计过程，并由底层原理讲述到流程图，子程序分析，并最终得到结果。-This document details the ultrasonic chip design process, described by the underlying principle to the flow chart, routine analysis, and ultimately get results.
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Size: 228352 |
Author: 赵易峰 |
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Description: 了降低超声波流量检测过程中噪声对检测精度的影响，采用FPGA器件构建了FIR滤波器，并提出一种新颖的查表法替代滤波器中的乘法运算-In order to reduce the flow in the process of ultrasonic testing noise on the influence of the precision, based on FPGA device constructed the FIR filter, and put forward a novel querying method of replacement filters multiplication
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Size: 135168 |
Author: 紫微 |
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Description: 时差法在超声波测量流量中的应用程序源码码，原吗运用相关法求的时差 可直接使用。
-Transit-time ultrasonic measuring flow in the application source code, the original you to use the the related Method time difference can be used directly.
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Size: 1024 |
Author: 推翻 |
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Description: 精确的互相关算法在超声波流速测量中的应用，期刊文献。-Application of the accurate cross-correlation algorithm in the ultrasonic flow rate measuring
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Size: 323584 |
Author: 李木子 |
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Description: 自己的毕业设计，采用MSP430单片机以及TDC-GP2测试芯片实现超声波热量计量，采用超声波流量计测量原理与测得温差涵算即可得到热量值，并采用点阵式液晶屏实现热量流量等数据的显示-Own graduation design, using MSP430 microcontroller and TDC-GP2 test chip ultrasonic heat measurement, ultrasonic flowmeter measurement principle and the measured temperature culvert count caloric value can be obtained, and the use of dot-matrix LCD screen to achieve heat flow data show
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Size: 74752 |
Author: 赵飞 |
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Description: TDC-GP22 is the first device that can be seen as an integrated ultrasonic flow converter.
It is a 100 pin and functional compatible upgrade to TDC-GP21. But the new additional functionality - the save first hit detection and the patented signal strength monitoring by pulse width measurement - make it the first complete and easy to use front-end chip for ultrasonic water meters and heat meters.
Analog elements like a chopper stabilized comparator and analog switches simplify external circuits of ultrasonic flow meters in a significant manner. The programmable offset range of the comparator was extended. In combination with the first hit detection empty tubes can easily detected. In parallel, the operating current is reduced by improved internal data processing. All in all, the TDC-GP22 is the device of choice to design future ultra-compact and low-cost ultrasonic flow meters and heat meters.-TDC-GP22 is the first device that can be seen as an integrated ultrasonic flow converter.
It is a 100 pin and functional compatible upgrade to TDC-GP21. But the new additional functionality - the save first hit detection and the patented signal strength monitoring by pulse width measurement - make it the first complete and easy to use front-end chip for ultrasonic water meters and heat meters.
Analog elements like a chopper stabilized comparator and analog switches simplify external circuits of ultrasonic flow meters in a significant manner. The programmable offset range of the comparator was extended. In combination with the first hit detection empty tubes can easily detected. In parallel, the operating current is reduced by improved internal data processing. All in all, the TDC-GP22 is the device of choice to design future ultra-compact and low-cost ultrasonic flow meters and heat meters.
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Size: 2132992 |
Author: asdas |
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Description: 一篇关于光流传感器的论文，光流传感器广泛应用于微型西轴飞行器的室内定位-Robust velocity and position estimation at high
update rates is crucial for mobile robot navigation. In recent
years optical flow sensors based on computer mouse hardware
chips have been shown to perform well on micro air vehicles.
Since they require more light than present in typical indoor
and outdoor low-light conditions, their practical use is limited.
We present an open source and open hardware design 1 of an
optical flow sensor based on a machine vision CMOS image
sensor for indoor and outdoor applications with very high light
sensitivity. Optical flow is estimated on an ARM Cortex M4
microcontroller in real-time at 250 Hz update rate. Angular
rate compensation with a gyroscope and distance scaling using
a ultrasonic sensor are performed onboard. The system is
designed for further extension and adaption and shown in-flight
on a micro air vehicle.
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Size: 1458176 |
Author: 丁杰峰 |
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Description: 关于超声波倒车雷达测距的，多机电力系统仿真及其潮流计算，欢迎大家下载学习。- About ultrasonic parking radar ranging, Multi-machine power system simulation and flow calculation, Welcome to download the study.
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Size: 5120 |
Author: 陈锦艳 |
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Description: 针对小型无人机在无卫星导航信号条件下的导航问题, 结合光流及地标定位设计了使用摄像头、惯性测量器件、超声测距仪等传感器融合的无人机室内导航方法. 文章使用补偿角速率的光流微分法计算帧间像素点小位移, 并用前后误差算法提取精度较高的点, 避免像素点跟踪错误, 提高了光流测速的精度 对得到的光流场用均值漂移算法进行寻优, 得到光流场直方图峰值, 以此计算光流速度. 本文提出了无累积误差的连续地标定位算法, 实时测量无人机位置. 通过多速率卡尔曼滤波器对观测周期不一致的位置、速度信息进行最优估计. 在搭建的八旋翼无人机平台上试验, 将位置与速度测量结果分别与激光和PX4FLOW数据对比, 结果表明该导航方法可以有效抑制定位跳变与光流测量噪声误差, 给出精确的位置与速度估计.
-Problems for the Navigation satellite navigation signals in the absence of conditions, and in conjunction with optical flow landmark UAV design indoor navigation positioning method using the camera, inertial measurement device, an ultrasonic range finder sensor fusion article using the compensation angle computing optical flow rate of the inter-pixel differentiation small displacements, and extracted with high precision before and after the point of error algorithm, to avoid the tracking error pixel, improve the accuracy of optical flow speed optical flow field obtained for the mean shift algorithm optimization, the histogram peak optical flow, in order to calculate the optical flow velocity. in this paper, the landmark location algorithm continuously accumulated error is measured in real time the position of the UAV by multirate Kalman filter observation period inconsistent positions , optimal estimation speed information. tested on eight rotor UAV platform structures, the position a
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Size: 882688 |
Author: lou tayzan |
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Description: 基于stm32和TDC-GP22 开发的超声波流量表(Ultrasonic flow meter developed based on STM32 and TDC-GP22)
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Size: 22818816 |
Author: gxy6666666 |
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