鉴频器是输出电压和输入信号频率相对应的电路。按用途可分为两类。第一类用于调频信号的解调。常见的有斜率鉴频器、相位鉴频器、比例鉴频器等,对这类电路的要求主要是非线性失真小,噪声门限低。第二类用于频率误差测量,如用在自动频率控制环路中产生误差信号的鉴频器。对这类电路的零点漂移限制较严,对非线性失真和噪声门限则要求不高。
... 陶瓷滤波器(Ceramic Filter) 鉴频器(Discriminators) 声表面波滤波器(SAW Filter)介质滤波器(Dielectric Filter), ...
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鉴相鉴频器 phase detection discriminator
陶瓷鉴频器 ceramic frequency discriminator ; [电子] ceramic discriminator
振幅鉴频器 amplitude discriminator
斜率鉴频器 [电子] slope detector
平衡鉴频器 balanced discriminator
相移鉴频器 [电子] phase-shift discriminator ; foster-seeley discriminator
差动式鉴频器 differential discriminator
线性鉴频器 linear discriminator
脉冲鉴频器 pulse frequency discriminator
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结果表明,这种鉴频器不但具有较大的频率捕捉范围,而且非常易于实现。
As the result shows, using the proposed detector, not only the range of frequency being captured can be widen, but it is easy to be implemented.
本文介绍用于水轮机调速系统中的A-D-A型数字鉴频器的输入电路和抗干扰措施。
This paper describes the input circuit and anti-interference measures of A-D-A type digital frequency discriminator used in the speed governing system of hydraulic turbines.
以日本村田公司的两个新产品为例,分别介绍了陶瓷滤波器和陶瓷鉴频器的新特性及其应用。
This article introduces the new characteristics and applications of the piezoelectric ceramic filter and discriminator by two new products made from the Murata Manufacturing of Japan.
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