| 1. | Method of measurement of current noise generated in fixed resistors 固定电阻器产生的电流噪声的测量方法 |
| 2. | The most important and difficult contents of this paper are the research and development of the computer - testing system for current signal measurement of current - source in synthetic circuit 本文重点在于合成回路中电流源电流信号计算机测试系统的开发与研制。 |
| 3. | Usually , in trip distribution , a new flow matrix is forecasted based on estimates of future productions and attractions and measurements of current flows or measurements of the generalized cost of each trip 通常,在出行分布中,通过调查现状交通量和运输成本以及预测未来年发生、集中量,最后得到一个新的流量矩阵。 |
| 4. | The computer - testing system for current measurement of current - source in synthetic circuit has very important significance for the development of the computer - testing system of the whole synthetic circuit 本文研制的合成回路中电流源电流的计算机测试系统对于整个合成回路试验计算机测试系统的研制有着十分重要的意义。 |
| 5. | In the computer - testing system of current signal measurement of current - source in synthetic circuit , the following contents are included , such as voltage - frequency converting technique , optical fibre isolating and transmitting technique , singlechip testing and controlling , plotting and printing of sampled data on pc ( personal computer ) 电流源电流信号的计算机测试系统包括传感元件部分、压频转换部分、光纤隔离传输部分、单片机测控部分以及pc机对采集数据的波形绘制与打印部分。 |
| 6. | The important study is the electric parameter measurement system which is achieved with sigma - delta a / d converter and dsp " sampling to three phrase voltage and current . its function includes the measurement of current , voltage , frequency , phrase , power , factor , active power and energy , reactive power and energy 本文主要研究了用? a d转换器和dsp处理器对工频三相电压、电流进行数字采样,再用数字低通滤波器实现对三相电参数进行测量的测量系统。其主要功能包括对电流、电压、频率、相位、功率因数、有功功率、有功电能、无功功率、无功电能等测量,并具有测量数据并行输出接口。 |
| 7. | In this paper , the oscillatory circuit and synthetic circuit are analyzed theoretically at first and the main parameters of sythetic circuit under the conditions of the different current grades are gotten , that is not only the parameters " basis of synthetic circuit test , but also the important references of studying computer - testing system for current measurement of current - source in synthetic circuit 本文首先对振荡回路和合成回路进行了理论分析并确定了在不同电流等级条件下合成回路中的各主要参数,这不仅为合成回路试验提供了参数依据,同时也为合成回路中电流源电流信号计算机测试系统的研制提供了重要参考。 |
| 8. | This result offers very easy method for the material analysis . application studies approve that the sensor has large application markets . the applications include the measurement of acoustic / vibration signal , intelligent material and intelligent structure , the measurement of hydro - acoustics , ultrasonic inspection and the measurement of current rate of fluid 传感器的应用研究实验论证了该传感器可应用于声振动信号的测量,智能材料和智能结构的声振动信号检测,水声检测,超声探伤以及流体流速的测量等许多方面。 |
| 9. | In this part , the design and theory of the main loop , the controller , the inspection and measurement of current and the circuit of orientation of rotor position in the analog control system are presented in detail . the theory of load experiment device and the experiment result are introduced as well 详细论述了模拟控制系统硬件结构的主回路、控制器、电流检测电路以及转子位置检测电路的设计及工作原理,并且给出自行设计的负载实验装置实验原理及实验结果。 |