示波器在工业上是一种最为常见的测试仪器,在乐器音响测定中也常为使用。示波器能把由乐器声学物理参量转换而成的电信号,变成人眼能看得见的视频信号。通过观察荧光屏上的波形曲线,人们就可以测定乐器乐音的频率、音量和音色,从而对乐器进行客观鉴定。从通常演奏的乐器的音域来看,它的基波频率一般在20Hz--5000Hz之间,因此测定乐器时,可选用频带宽 Oscilloscope in the industry is one of the most common test equipment, acoustic instruments in the instrument is often used. Oscilloscopes convert the electrical signals converted from the acoustical physical parameters of the instrument into video signals that are visible to the human eye. By observing the waveform on the screen, one can measure the frequency, volume, and tone of the instrument’s tone, allowing the instrument to be objectively identified. Judging from the range of the musical instruments that are usually played, the fundamental frequency of the musical instruments is usually between 20 Hz and 5000 Hz. Therefore, when measuring an instrument, the available frequency bandwidth