频率响应特性

用于GIS局部放电检测的超高频传感器频率响应特性

Frequency response characteristics of the UHF Sensors for partial discharge detection in GIS

电影录音控制室、鉴定放映室及室内影院A环、B环电声频率响应特性测量方法

Measurement methods of A-chain and B-chain electro-acoustic frequency response of motion-picture control rooms , re view rooms and indoor theatres

用CCD补偿仪器、传感器频率响应特性的研究与设计

Study and Design on Influences of Frequency Response of Sensor By CCD Compensation

频率响应特性CAI软件的开发

Software Development About Frequency Response Characteristics CAI

由于调制传递函数（MTF&ModulationTransferFunction）能够客观地反映一个成像系统的频率响应特性，因此，人们一直把它作为评价连续成像系统质量的重要手段。

The modulation transfer function ( MTF ) is an important parameter for evaluating the quality of a image-forming system , because MTF can objectively reflect characteristics of spatial frequency response of the system .

在计算机辅助测试（CAT）条件下，对电液伺服阀频率响应特性测试数据进行了离散化处理。

Under the condition of CAT ( Computer aided test ), the test data about electro-hydraulic servo valve frequency response characteristic is processed with the discrete way .

制备了一系列三明治式聚氨酯（PU）泡沫夹心板，研究了聚氨酯泡沫的组成和结构与频率响应特性之间的关系。

A series of classical sandwich composite panels composed of polyurethane ( PU ) foam core and epoxy laminate or paper panel skin were prepared .

用天线理论对用于GIS局部放电检测的超高频传感器频率响应特性进行了分析及实测。

The frequency response ( FR ) characteristics of the ultra high frequency ( UHF ) sensors used for detecting partial discharge in GIS are analyzed by the antenna theory and measured in laboratory .

GMR传感器直接测量磁场，因此具有良好的频率响应特性。

GMR sensor detects the magnetic field directly , thus it has a good frequency response characteristic .

第三章详细介绍了FIR数字滤波器的线性约束条件和频率响应特性，并针对一种常用的设计方法&频率抽样法进行了说明。

Chapter three introduces the linearity constraint condition and frequency respond characteristic of FIR digital filter , and establishes a design way in common use & Frequency sampling .

通过实验，具体掌握了PSD的温度特性、频率响应特性及光强改变对PSD输出性能的影响；

By experiments , the PSD 's temperature and frequency response characters are mastered so as to the output performance when the intensity changed .

Butterworth滤波器和Chebyshev滤波器是两种比较典型的IIR滤波器，具有不同的频率响应特性。

The Butterworth filter and the Chebyshev filter are two kinds of typical IIR filters and have different frequency-response characteristics .

针对光探测器芯片的各种重要参数，如I-V特性、暗电流、量子效率、频率响应特性展开了相应的理论和实验的研究。

Parameters of photodetector , such as I-V characteristic , dark current , quantum efficiency and frequency response are studied experimentally and theoretically .

此外，由于所设计的Hilbert数字移相滤波器具有优越的频率响应特性，即使对于相当高次谐波无功功率的测量，也能获得很高的测量准确度。

In addition , because of the excellent frequency response of the designed Hilbert filter , the high accuracy of the measurement for high harmonics can be guaranteed .

本文对三极子孔径单元的FSS在不同介质加载情况下的频率响应特性进行了仿真和分析。

In this paper , the frequency response of FSS of triple slotted element with different dielectric load is simulated and analyzed .

阶跃响应特性、频率响应特性及有效位数是数字存储示波器（DSO）性能的重要计量指标。

The step respondence , frequency respondence and effective bits are important metrological specifications of Digital Storage Oscilloscope ( DSO ) .

DFB半导体激光器虽然呈现出比较良好的频率响应特性，但张弛振荡峰和老化现象的存在，限制了DFB激光器的广泛应用。

Although the DFB-LD shows the relatively good frequency response characteristics , the presence of relaxation oscillation peak limits the wide application of DFB-LD .

再通过PSS现场整定试验，即无补偿、有补偿频率响应特性及抗扰动试验再次优化并确定参数；

The final parameters of PSS are further optimized and determined by field adjustment test , such as the frequency response tests with and without compensation and the step response test .

作为一应用实例，计算了一只Ka波段三节E面带通滤波器的频率响应特性，所得插入损耗的理论值与测量结果符合较好。

As an example of their applications , the frequency responses of a three-resonator Ka-band E-plane band-pass filter have been calculated . Theoretical results of the insertion loss in passband are in agreement with the measured results .

为了得到对于不同入射角和极化波稳定的频率响应特性曲线，我们在FSS面间加载了适当的介质层。

In order to obtain a stability resonant curve under different incidence angles and polarizations , the dielectric slabs arrays are proper added between the FSS screens .

研制了气体绝缘组合电器（GIS）局部放电检测的圆板和圆环型两种内置传感器，分析了它的频率响应特性以及稳、暂态的输入输出特性。

Based on the characteristics of configuration of gas-insulated substations ( GIS ) and partial discharge in GIS , a disc coupler and a loop coupler for continuous monitoring partial discharge in GIS is designed and the response characteristics of two couplers are investigated .

采用C++和C混合编程设计了一套有关频率响应特性&NYQUIST图和BODE图绘图方法的辅助教学软件。

In this article , the authors use C + + and C to compile programs to design a set of computer aided instruction software of drawing methods concerned with frequency response characteristics & the NYQUIST plot and the BODE plot .

采用电荷藕合器件（CCD）设计了有限脉冲响应系统，该系统可以作为补偿网络补偿仪器、传感器之类的各种测量器件或系统的频率响应特性，以拓展其工作频带。

A finite impulse response system is designed with Charge Coupled Devices ( CCD ) . The system can be used to compensate the frequency response of various measurement devices , such as instruments , sensors and etc to extend their working frequency band .

从速率方程出发，利用小信号分析方法对垂直腔半导体光放大器（VCSOA）的频率响应特性进行了研究。

Frequency response characteristics of vertical cavity semiconductor optical amplifiers ( VCSOAs ) are investigated by utilizing small signal analysis method .

雪崩光电二极管（APD）是一种量子效率高、灵敏度高、频率响应特性好的光电探测器，在激光雷达、微光探测、光纤通信等领域中有着重要应用。

Avalanche photodiodes ( APD ) is a kind of photoelectric detectors with high quantum efficiency , high sensitivity and good frequency response . APD is widely used in laser radar , weak light detection and fibre communication .

在此介绍了电液伺服控制系统的组成，对伺服放大器中的三角波发生器、PWM调制原理和功率放大级电路进行了详细说明，并分析了伺服阀对PWM信号的频率响应特性。

This paper introduces the composition of electro-hydraulic servo control system . Especially , the triangular wave generator , PWM principle and the power amplifier stage circuit in the servo amplifier are described . Finally , the frequency response of servo valve to the PWM driving signal is analysed .

根据无PSS时的励磁系统频率响应特性试验结果对PSS的参数进行了整定，并对整定后的系统进行了负载阶跃和反调试验。

According to the test result of frequency response characteristic of the excitation system without PSS the parameters of the PSS are set and both step response test of the load and mis-reverse adjustment test for the excitation system after the setting are carried out .

提出了若干新型的DGS单元，利用这些单元的频率响应特性提取了它们的等效电路模型及元件参数，并利用这些单元设计了几款低通滤波器和多通带滤波器。

Several kinds of novel DGS unit were proposed and their equivalent circuit pattern and their elements values were extracted from their electromagnetic simulation . And the novel DGS units were utilized for low pass filters and multi-band pass filters design .

结果表明，VCSOA的频率响应特性受抽运光强度、输入光功率以及自发辐射因子的影响。

The results show that the frequency response characteristics of VCSOAs are influenced by the optical pump intensity , the input optical power and the spontaneous emission factor .

根据构成FRM滤波器的各子滤波器的频率响应特性，提出了非线性神经网络优化设计方法，该方法把所有子滤波器的系数当成一个向量同时进行优化，避免了大量子滤波器的优化设计过程。

According to the frequency-responses characteristics of FRM filters , a novel joint non-linear neural networks optimization approach is proposed , in which the set of FRM filter coefficients of all sub-filters is treated as a single design vector and the coefficients of overall sub-filters are optimized simultaneously .