观察目的的静电聚焦和静电偏转阴极射线管(CRT)已应用于示波器,矢量示波器,光谱分析仪,超声波探伤仪及医用设备。由于近几年来数字技术和微处理机技术的飞速发展,这些测量器件的性能得到改善——精度变得更高,能够开辟更多的应用途径并且更完善。因此,CRT还能为测量结果提供更精确的显示。 Electrostatic focusing and electrostatic deflection cathode ray tubes (CRT) for observation purposes have been used in oscilloscopes, vector oscilloscopes, spectrum analyzers, ultrasonic flaw detectors and medical devices. Due to the rapid development of digital technology and microprocessor technology in recent years, the performance of these measuring devices has been improved - the accuracy becomes higher, more applications can be opened up and more perfect. Therefore, the CRT also provides a more accurate display of the measurement results.