According to the frequent malfunctions in input parts of the superhet measurement instrument met in the repairing work,this paper described the structures of the input attenuator and 1st mixer,it analyzed the reasons that may be destroyed in detail,and gave the removing methods.
本文以维修工作中遇到的超外差式测量设备输入端常见故障为线索,介绍了其中输入衰减器和第一混频器的结构,并详细分析了可能造成其烧毁的原因与排除方法。
oscillator-mixer-first detector
振荡-混频第一检波器
An oscillator for generating the carrier frequency of a transmitter.
主控振荡器产生载波频率的振荡器
microwave sweep oscillator
微波扫频信号振荡器
sound surface wave frequency-modulated oscillator
声表面波调频振荡器
RF Oscillator and Mixer Operating on Transistor Characteristic Frequency;
三极管特征频率下射频振荡器和混频器
seismometer resonant frequency
地震检波器谐振频率
Frequency feature of S-band tapered magnetically insulated transmission line oscillator
S波段锥形磁绝缘线振荡器频率特性
A frequency stabilized Gunn oscillator is used as the pumping source of the Ist-stage parametric amplifier.
第一级参量放大器,采用体效应振荡器做泵源,加有稳频装置。
seismometer free period
地震检波器自由振荡周期
An electronic device, such as an oscillator or a detector, using such a material.
石英片一种用该种材料制成的电子部件，如振荡器和检波器，
Numerical Investigation of X-Band Dual Frequency High Power RBWO
X波段双频高功率返波振荡器的数值研究
Study of Co-design of Radio Frequency Oscillator and Filters;
射频振荡器与滤波器的协同设计与研究
Detection of the Dominant Inertial Modes Based on Wavelet Energy Coefficient
基于小波能量系数的主导低频振荡模式检测
The Study of Damping of Power System Low Frequency Oscillations by Unified Power Flow Controller;
统一潮流控制器抑制低频振荡的研究
multivibrator frequency modulator
多谐振荡器式调频器
For very high frequency clocks, a surface acoustic wave (SAW) oscillator is preferable.
对于非常高的频率时钟，用声表面波振荡器更好。
Analysis on Factors Affecting Frequency Stability of SAW Oscillators
影响声表面波振荡器的频率稳定性因素分析
Experimental investigation of L-band bifrequency magnetically insulated transmission line oscillator
L波段双频磁绝缘线振荡器的实验研究