英语翻译本系统有四个模块组成：程控放大器,程控滤波器,四阶椭圆低通滤波器,以及简易幅频特性测试仪.程控放大器放大电压增益

来源：学生作业帮编辑：大师作文网作业帮分类：综合作业时间：2024/11/18 07:13:17

英语翻译
本系统有四个模块组成：程控放大器,程控滤波器,四阶椭圆低通滤波器,以及简易幅频特性测试仪.程控放大器放大电压增益为60dB,增益10db步进可调,电压增益误差不大于5%.通频带100HZ～200KHz,放大器输出无明显失真.由MAX262为核心的程控滤波器可设置为低通,高通滤波器,-3dB截至频率在1KHz～20KHz范围内可调,调节的频率步进为1KHz.四阶椭圆型低通有源滤波器,带内起伏≤1dB,-3dB通带为50kHz,要求放大器与低通滤波器在200kHz处的总电压增益小于5dB,-3dB通带误差不大于5%.简易幅频特性测试仪输出扫频信号频率设置范围100Hz～200KHz,频率100Hz步进可调.系统以AT89S52为控制核心,经测试验证,系统运行稳定,操作方便.
关键词：程控放大器,程控滤波器,椭圆滤波器,幅频特性测量

The system has four modules: program-controlled amplifiers, programmable filters, fourth-order elliptic low pass filter, and amplitude-frequency characteristics of simple tester. Programmable amplifier voltage gain 60dB, gain 10db step adjustable voltage gain error is less than 5%. Pass band 100HZ ~ 200KHz, the amplifier output without significant distortion. The core of the program-controlled by the MAX262 filter can be set to low pass, high pass filter,-3dB at 1KHz ~ 20KHz frequency range of adjustable, adjust the frequency step is 1KHz. Fourth-order elliptic low pass filter, band fluctuations ≤ 1dB,-3dB passband to 50kHz, required amplifier and low pass filter in the 200kHz office is less than the total voltage gain 5dB,-3dB passband error is less than 5%. Simple amplitude-frequency characteristics of the frequency sweep signal tester to set the output range of 100Hz ~ 200KHz, frequency 100Hz adjustable step. AT89S52 as the control system to the core, has been tested and verified, the system is stable, easy to operate.

英语翻译本系统有四个模块组成：程控放大器,程控滤波器,四阶椭圆低通滤波器,以及简易幅频特性测试仪.程控放大器放大电压增益程控增益放大器意义程控绝缘耐压测试仪程控绝缘测试仪（耐压）程控耐压测试仪（绝缘）哪家公司销售价格最低? 关于分贝增益一个放大单元由下图各放大器和衰减器等组成.求：（1）若K1=20,K2=50,K3=10,滤波器和衰减马弗炉与一体化程控高温炉有什么区别? 实验电炉,实验室高温炉,程控一体马弗炉那里有? 多媒体网关与数字程控电话交换机有区别么?多媒体网关属于数字程控电话交换机的一种么? 请问一体化程控高温炉1000度和1200度的一体化程控高温炉,有什么区别? 高通滤波器的幅频特征,为什么在频率很高时,其电压增益会随频率升高而下降数字程控电话交换机的256门, 数显切纸机和程控切纸机的区别程控电话交换机为什么要采用缺省值