A sea current meter protective cap is characterized by being a drum-shaped cap, a cap wall is provided with two grooves, and the cap bottom is provided with two cone-shaped posts. 一种海流计保护帽,其特征是一圆桶形的帽,帽壁上开有两个槽,帽底有两根锥形的柱。
Influence of Sounding Positioning Errors on Current Meter Discharge Measurement at Zhicheng Station 测深定位误差对枝城站流速仪法流量测验的影响
In this paper, we applied JTFA techniques to the residual flow data collected from a current meter and obtained valuable results, which could not have been obtained using conventional signal processing methods. 本文采用这种方法处理了海流观测资料中的余流,取得了用传统方法得不到的有用结果。
A new portable propeller-type current meter BH-1 is introduced, which consists of three parts: flow velocity sensor, signal process circuit and data analysis software. 介绍了一种新型BH-1型便携式旋桨流速仪,主要由自主研制的流速传感器、手持式主机及微机数据回放处理软件三部分组成。
Forward-back-scattering type laser current meter 正反向散射型激光流速仪
The Research on a Portable Propeller-Type Current Meter BH-1 BH-1型便携式旋桨流速仪的研制
To use the elements, you should prepare the adjustable transformer or silicon controlled transformer, voltage meter, current meter and autocontrol temperature meter etc. 使用元件必须配备调压变压器或可控硅调压器及电压、电流表和温度自动控制仪表等。
This paper introduces the study of testing velocity instruments by the model test, major presents the propeller current meter, electric magnetic velocity meter and the ultrasonic velocity meter. 分析研究了用于模型试验的流速测量传感器和相关仪器,重点介绍了旋浆流速仪、电磁流速仪和超声波流速仪。
At present, method of thermal current meter, hotbox method, infrared thermal perturbation of the external walls in China are main methods to measure the heat transfer coefficients. 现阶段,热流法、热箱法,热红外摄像仪法是我国测量外墙传热系数的主要方法。
Firstly, giving an introduction about the current meter research in and outside nation and finding the reality meaning to study this intelligent portable current meter. 首先,对国、内外在流速仪的研究情况进行了分析,得出了研究了便携式智能流速仪的实际意义。
Comparison of Electromagnetic Current Meter Sensor 电磁海流计传感器性能的比较
Development and Present Situation of Marine Current Meter in China 我国海洋测流仪器的发展与现状
Application of Least-Squares Method in the Calibration of the Rotor Current meter 最小二乘法在转子流速仪检定中的应用探讨
Fifthly, it gives a conclusion to the issue by analyzing from the sampling data, and put forward some new thinking about the current meter design. 第五,从数据采集的运行结果进行分析,对课题的研究进行了总结,并提出了设计流速仪的一些新思想。
Research on Comparative Measurement of Discharge with ADCP and Rotating Element Current Meter ADCP与转子式流速仪流量测验比测分析试验研究
The Application of Digital Signal Processing in the Electromagnetic Current Meter 数字滤波技术在电磁海流计中的应用
The Research of Digital Magnetism-Photo Optical Fiber Electric Current Meter 数字式磁光光纤电流计的研究
Practical problems concerning direct current measurement in very shallow water including the dynamic equation and performance of a rotor type current meter are discussed in this paper. 本文简要介绍了超浅海水域中直接测流的实际问题,讨论了海流计的动态方程及其特性。
In the paper, the recommendations were presented for the measuring technology of flow of large-size low lift pump and the measuring technology of the current meter and the input power of the drive motor of model pump governed by converter in the overall hydraulic model test. 文中对目前颇为棘手的大型低扬程泵流量现场量测方法及水泵站整体水力模型试验中的流速传感器与变频调速模型泵电机输入功率等的量测方法提出了建议。
An intelligent current meter rating system 一种智能化的流速仪率定系统
A Calibrator for Leakage Current Meter 一种漏电流测量仪表校准器
This paper presented the development of display meter and the advantages of digital meter and gave the design dates of AC/ DC voltmeter, AC/ DC current meter and AC power meter. 文中论述了显示仪表的发展以及数字式仪表的优点.给出了交直流电压表、电流表和交流功率表的设计数据和实例。
The Design and Analysis of A Window Current Meter 窗口电流检测仪的设计与分析
The AC voltage meter and the AC current meter used in power system are usually rectifying instruments, which adopt principle of responding to the average value of voltage and current and get the virtual value by using of the proportion between the average value and it. 电力系统中使用的交流电压表和电流表通常采用整流式仪表,其工作原理是对电网电压和电流的平均值响应,利用平均值和有效值的比例关系从而得出信号的有效值。
This method utilize the pointer-type current meter, artificial reading and then calculate out the uniform current intensity factor. 以前国内铁路机车检修企业的均流试验检测系统多采用普通分流器作为各桥臂并联支路及总电流的检测元件,使用指针式电流表,依靠人工读数计算均流系数的方法。
Data processing methods for measuring the internal resistance with sensitive current meter 灵敏电流计内阻测量的数据处理方法
Commonly used measuring instrument such as current meter, voltmeter, thermometer, resistance measurement, such as the number of capacitance measurement test is more and more, testing cycle shortens, measuring the high volume of work. 常用的计量仪表如电流表、电压表、功率表、温度表、电阻测量、电容测量等检测的数量越来越多,检测周期越来越短,计量的工作量很大。
This thesis has first studied the measurement theory of time-difference ultrasonic current meter, include the derivating the theory formula, theoretically analyzing the transmission character of ultrasonic wave in fluid, and the measurement and estimation methods of the delay time. 论文首先分析了时差式超声波流速计测量系统的原理,包括时差法的理论公式推导、从理论上对超声波在流体中的传播特性进行了分析及时间差的测量和估算方法进行分析。
Water surface profile and velocity field of flow in flume are measured by manometer tube and propeller current meter respectively. 首先进行了单丁坝水槽实验,采用测压管和旋浆流速仪对实验水槽中水流的水位以及流速场进行了详细的测量。