示波器自检步骤分解

[{"insert":"1.测试附件：\n"},{"insert":{"image":"https://files.eteforum.com/article/202302/b457a3270acd8ea9.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"insert":"2.测试操作步骤：\n1.点击 utilities ->self test->选择自检项 scope selftest->start.\n"},{"insert":{"image":"https://files.eteforum.com/article/202302/8e51eeee2599b8ae.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"insert":"2. 自检完后我们看到自检项目是 pass 证明 OK.\n"},{"insert":{"image":"https://files.eteforum.com/article/202302/103def86c64f78be.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"insert":"3.点击 setup 选择channel 1（每个通道需要进行测量）->impedance 选择阻抗值 50Ω/1MΩ，然后调节垂直幅度旋钮查看万用表测出端口阻抗变化。（在示波器复位情况下50Ω偏差范围是标称值±3.5%±1.75Ω,1MΩ偏差范围是标称值±1%±0.01Ω）\n"},{"insert":{"image":"https://files.eteforum.com/article/202302/7136f3fc57a3d881.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"insert":{"image":"https://files.eteforum.com/article/202302/5987f2933b023ad4.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"insert":"不同垂直刻度范围值✷\n"},{"insert":{"image":"https://files.eteforum.com/article/202302/68e0cee24e9e60cd.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"insert":"4.需要用到一根BNC线，将我们示波器AUX OUT端口输出与示波器连接输入端口连接，然后设置示波器，点击utilites->calibrttion output-选择信号输出 probe comp，看到示波器出现波形后，点击 auto scale，然后调节垂直幅度旋钮，调节电压刻度，观察输入信号电压值变化。（如果发现在某个电压刻度内电压值不准,证明有问题).\n"},{"insert":{"image":"https://files.eteforum.com/article/202302/6fb0d42827b259c5.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"insert":{"image":"https://files.eteforum.com/article/202302/68b717dfdc0ec513.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"insert":"备注：以上只是演示一个端口测量与自检，在自检与端口测量，需要全部自检项目要自检，所有端口要按照以上操作测量。\n——作者 君鉴科技/詹军学"},{"attributes":{"align":"right"},"insert":"\n"}]