Transistor amplifier circuit has oscillation preventing diode connected to connecting wire of2 transistors to prevent inductance due to wire length. 晶体管放大电路拥有一个防震二极管以防止由电线长度引起的自感应现象,此防震二极管连接在2个晶体管金属丝接头上。
With respect to track circuit of length other than ultimate ones, method of adjusting resistance selection is explained: either for the allowance of least ballast resistance or for the allowance of train-shunting sensitivity. 对于小于极限长度的移频轨道电路,推荐了调整电阻的选用方案:对道碴电阻的最低值保留裕量,还是对列车分流状态保留裕量。
According with the simulation and experiment, some methods used to optimize the sensor and signal conditioning of remote field eddy current are investigated as follows: using shield and magnetic circuit to shorten the length of sensor and enhance the signal; 结合仿真与实验研究远场涡流传感器与信号调理电路的优化设计方法:采用电磁屏蔽、磁路,以缩短探头长度、增强检测信号;
To gain the equivalent circuit parameters, the length extension mode. 为得到等效电路参数,给出了等效电路参数与压电材料参数之间相互关系。
The design project and principle diagrams of program-controlled preamplifier, high-speed A/ D converter circuit and communication block of USB are given at length. 给出了示波器前置程控放大电路、高速模数转换电路和USB通信模块的设计方案和原理框图。
The system uses the different inductive characteristics of water and ice, the integrated encoding and decoding characteristics, and the circuit of string, and realizes a new method of measuring the length of ice. 本系统利用了水和冰的不同的导电特性,集成编译码的电特性,以及磁弦控电路等各项技术实现了一种新型的冰厚检测方法。
The basic structure of the steel plate shearing equipment and the electric control system program realized by single chip computer are introduced, specially the signal processing circuit of photoelectric coder in sheared steel plate length measurement is analysed and the methods of improving measurement accuracy are introduced; 介绍了钢板剪切设备的基本构成和利用单片机实现的电气控制系统方案,重点分析了光电编码器在剪切钢板长度测量中的信号处理电路及提高测量精度的方法;
Some methods for overcoming these disadvantages are investigated as follows: first, using shield and magnetic circuit to shorten the sensor length and enhance the signal magnitude; 本文结合有限元仿真和实验方法,研究了改进远场涡流技术性能的几种方法,即:采用电磁屏蔽、磁路进行传感器优化设计以缩短探头长度、增大信号强度;
The circuit employs a common source device, which has a gate length of 0.8 μ m cascode connected to a 1 μ m common gate device. 该器件包括栅长为0.8μm共源器件与栅长为1μm的共栅器件。
This method is especially suitable to routing of the superhigh speed digital circuit which has strict demand on routing length. 它尤其适用于对连线长度有严格要求的超高速电路的布线问题。
Circuit of converting integer to floating-point and its performance of complementing and rounding in parallel and adaptation of bit length itself 求补舍入并行和位长自适应整数转浮点数电路设计
According to the transmission line of Mason equivalent circuit theory, the metallic membrane plating structure of piezoelectric transducer is determinated. Then, the length, width and thickness of piezoelectric transducer and acousto-electro-optic crystal are calculated. 然后利用传输线的玛森等效电路理论计算并确定了压电换能器的最佳镀膜结构,以及换能器的长度、宽度和厚度,和声电光晶体的长度、宽度和厚度。
The paper presents the approach to calculation of the random test length of microprocessor, starting from the module of the circuit or the functional test and based on the concept of "minimum test probability", the maximum test length can be obtained. 文章给出关于微处理器随机测试长度的计算方法:从模块级出发或从功能级出发,由最小检测概率计算最大测试长度。
It was shown that appropriate selection of sharpening capacitor and circuit inductance would decrease the current-pulse length without any harm to the thyratron. 适当选择锐化电容和回路电感量,可以使放电电流脉冲变窄而又不加重闸流管的负担。
A novel intelligent control circuit for length counting with rotating codec and approaching switch was introduced in this paper. 用旋转编码器、接近开关等传感器与CPU实现长度计数智能控制电路。
In comparison, the influences of the lengths of metal mandrel, insulated rod and return circuit electrode on depth of investigation are relatively small, while that of the length and width of plate electrode are relatively large. 相对而言,金属芯棒、绝缘棒和回路电极的长度对探测深度的影响较小,而极板的长度和宽度影响较大。
With the development of modern semiconductor integrated circuit technology, the size of the gate and thickness of oxide layer are smaller and smaller, but the length of the interconnect has a trend of increase, this has caused antenna effect more and more remarkable. 随着现代半导体集成电路工艺的发展,栅的尺寸和氧化层的厚度越来越小,然而互连线的长度却有增加的趋势,这就造成了与之相关的天线效应越来越显著。
In the proposed way for generating full sequences a combinational logic circuit derived by the generated sequence is used to get the feedback signal, which can makes the length of a period of the sequences equal to 2n. 所提出的满序列发生器设计方法则根据不同的发生序列采用相应的组合逻辑产生反馈信号,结果可使序列长度等于2n。
When digit signal orbital circuit is adopted in the equipment, which is used to transmit train-to-wayside information and location train position, the length of digital signal orbital circuit should be the minimal mea-sure unit of distance interval between trains. 采用数字轨道电路作为车一地信息传输设各及列车定位设备时,列车之间的安全间隔距离必须以数字轨道电路的长度作为最小计量单位。
The 4 fin rays 2-sided propeller and its control circuit are debugged, and its swimming experiments show that it can steering at the radius smaller than its body length. 并对双侧4鳍单元波动机构和控制电路进行了调试,在水中实现拍动方式游动,可以以小于体长的转弯半径转弯。
In this algorithm, the delay of total circuit is optimized by relaxing constraints for interconnect wires, instead of changing the length of interconnect wires. 该算法的特点在于不改变电路的互连线长度,而是通过修改电路调度结果来放松对互连延迟的约束,从而达到对同步时序电路的优化作用。
Furthermore, a relay circuit system is designed to achieve automatic crack arrested when crack propagates to a certain length. 设计简单的继电器电路系统,实现了裂纹扩展至一定长度后的自动止裂。
The main contents of this thesis are shown as following: 1. Design the control circuit for camera lens; researches on the definition evaluate function and control tactics for automatic variable focal length arithmetic; achieved functions of automatic focus and variable focal length controlling. 2. 论文的主要研究内容和工作如下:1、设计了摄像机镜头的控制电路,对自动变焦算法的清晰度评价函数和控制策略进行了研究,实现了镜头的自动聚焦、变焦控制。
This method considers each possible fault lines in turn, analyzes the circuit section by section with a certain step length, and calls failure analysis program. 该方法依次考虑每条可能发生故障的线路,以一定的步长对该线路进行逐段分析,调用故障分析程序。
In order to effectively detect a variety of frequency of interferometer vibration, when detecting vibration signal, detection circuit only can meet the requirements when it has large enough sampling frequency and sampling length. 为了有效的探测出干涉仪中振动的各种频率,探测电路在探测振动信号时必须要有足够大的采样频率和采样长度才可以达到要求。
In hardware, combining with system indicators of design, the filtered rectifier circuits, flyback main circuit and clamp protection circuit arc analyzed at length; and the selecting principles are identified. 在硬件方面,结合设计的系统指标,对滤波整流电路、反激主电路、钳位保护电路等进行了详细分析,明确了选取规则。
With a high-sensitivity switching circuit, the key parameters such as pretravel length and trigger repeatability can be calibrated exactly. This method can also be used for practical trigger control. 结合一个高灵敏度的开关电路,该控制策略可对测头的触发重复性、预行程等关键参数进行标定,也可以用于实际触发控制。
Secondly, with the theory of even transmission line, a simulation of track circuit transmitting length is set up to find out material effect of track circuit transmission characteristics with the electromagnetic coupling influence between steel bar networks in ballast-less track plate and rails. 然后运用均匀传输线理论对轨道电路传输长度进行建模和仿真,从而可以看出在受无碴轨道板中钢筋网络电磁耦合的情况下,轨道电路传输特性的具体情况。