"通信专业英语示波器应用练习"

The "示波器英语拓展.ppt" presentation on communication professional English introduces the topic of oscilloscopes. Oscilloscopes are instruments commonly used in the fields of communication, science, and industry to observe signals. The presentation explains that there are general-purpose oscilloscopes and special-purpose oscilloscopes. The general-purpose oscilloscope is versatile and can be used in a variety of applications, while special-purpose oscilloscopes are designed for specific tasks. The presentation discusses the characteristics and uses of a general-purpose oscilloscope. It mentions that general-purpose oscilloscopes are suitable for servicing communications, scientific, or industrial work, where the frequency of the signal does not greatly exceed 1000 kHz. The signal travels directly to the vertical deflection plates of the cathode ray tube in an oscilloscope, allowing for easy observation and measurement of the signal. In terms of exercises related to the presentation, the audience is asked to write "T" for true or "F" for false beside a series of statements. The exercises test the audience's understanding of the characteristics and uses of oscilloscopes, ensuring that they have grasped the key information presented in the slides. By engaging in these exercises, the audience can reinforce their knowledge and clarify any misunderstandings they may have about oscilloscopes. Overall, the "示波器英语拓展.ppt" presentation provides valuable information on oscilloscopes in the context of communication professional English. By learning about the different types of oscilloscopes and their uses, the audience can enhance their understanding of this important instrument in the field of communication. The exercises included in the presentation further help to solidify the audience's knowledge and ensure that they have a firm grasp of the key concepts related to oscilloscopes.