ValueTronics 2012 音频放大器和前置放大器

The 2012 is a 40 kHz Audio Analyzer from Bruel & Kjaer. With an audio spectrum analyzer, measure frequency response, level and gain, phase intermodulation distortion, signal-to-noise ratio, crosstalk, time domain display, and total harmonic distortion plus noise."," Additional Features:","The Bruel & Kjaer 2012 Audio Analyzer is a powerful instrument for transducer measurements and system analysis. It features a colour screen, built-in 31\/2² floppy disk drive, IEEE-488 and RS- 232-C interfaces, three measurement modes and an Auto Sequence facility. The Time Selective Response mode enables extremely fast, accurate, swept sine measurements of the free-field response of a transducer in an ordinary room up to the 20th harmonic. The Steady State Response mode enables stepped sine measurements of Harmonic, Difference Frequency and Intermodulation distortion. The 2012 also incorporates a 1600 line single-channel FFT for spectrum measurements.","The Bruel & Kjaer 2012 has numerous post-processing capabilities: windowing, block arithmetic, addition of poles and zeros, square and square root, absolute value, and editing of response data. Applications include development and quality control testing of loudspeakers, telephones, microphones and other electroacoustic and vibration transducers.

特性

• 结合最先进的正弦扫描和fft技术的传感器工作站
• 12英寸高分辨率彩色监视器可同时显示多达36条曲线
• 频率范围：1赫兹至40千赫
• Distortion and noise: <–80 dB re full scale input
• 复频率和脉冲响应的快速时间选择测量
• 稳态响应测量作为扫描频率或电平的函数
• 自动测量个别谐波，互调和差频失真成分和总均方根
• 1600线fft谱
• 用户可定义的自动序列
• 广泛的后处理设施：+，–，x，/，1/x，x2，vx，| x |，极点，零点，窗口，编辑，平滑
• 屏幕上的帮助英语，法语或德语
• 前置放大器(麦克风)和平衡或单端直接输入
• 两个独立的内置正弦发生器m内置3.5英寸1.44M字节，PC/MS-DOS兼容软盘驱动器，用于存储数据、设置、自动序列和简单加载完整应用程序
• 用于绘图仪和打印机的直接或通过磁盘的彩色和单色屏幕复制设备
• 两个独立的内置正弦发生器m内置3.5英寸1.44M字节，pc/ms dos兼容软盘驱动器，用于存储数据、设置、自动顺序和简单加载完整应用程序