head amplifier
英 [hed ˈæmplɪfaɪə(r)]
美 [hed ˈæmplɪfaɪər]
n. 前置（摄像机）放大器；前级视频放大器；微音器话筒放大器
双语例句
- Additionally, the head amplifier adopts a differential amplification mode to test the change of the signals on the secondary end for eliminating various interfering signals.
此外，为消除各种干扰信号，前置放大器采用差动放大方式来检测次级端上的信号变化。 - At the same time this kind of material is also the best material for high fidelity magnetic head, high performance magnetic amplifier.
同时这种材料也是高灵敏度保真磁头、高性能磁放大器元件的最佳材料。 - This monitoring device uses electric thermal couple as the head temperature sensor by finally actuating the LED displaying the measured results through cold-juncture compensation circuit, RC filter circuit, amplifier circuit and A/ D convert.
发动机缸盖温度监测仪采用热电偶作为缸盖温度传感器，通过冷端补偿电路，RC滤波电路、放大器电路、A/D转换器，最后驱动LED显示器显示测量结果。 - An analysis of noise of the head amplifier in the television system
电视系统中预放器的噪声分析 - In the television system, the head amplifier, whose low noise being put the first place in all the features, is one of the most important element circuits, which determines the image quality.
预放器是电视系统中决定图象质量最关键单元电路之一，而在预放器所有特点中，要求低噪声居首位。 - An Automatic Test System for the Head Amplifier of Thermal Imager
红外热像仪头部放大器自动测试系统