Erxin, Shang(Edwin, 尚尔鑫)'s Home Page » electric http://www.shangerxin.com Knowledge should be free. Tue, 24 Aug 2021 02:27:23 +0000 en-US hourly 1 http://wordpress.org/?v=3.8.13 Use oscilloscope Check the AC noise of a Power Source http://www.shangerxin.com/?p=85 http://www.shangerxin.com/?p=85#comments Mon, 15 Dec 2014 12:35:01 +0000 http://www.shangerxin.com/?p=85 How to use a oscilloscope display the wave shape of AC power source?
1. Check the oscilloscope is connected with attenuator probes, and adjust to the right attenuation factor. 1x, 10x 100x, … the more big the number the more attenuator value

2. Adjust the oscilloscope to the relative measure scope and set to the right channel

3. Connect the ground with the clamp to the ground of the source
10092166

4. Use one probe connecting with zero line, the other connected with the supply line

5. Adjust the sample time to make the wave shape looks better

6. The noise pulses are displayed during my measurement result

WP_20141212_14_13_43_Pro

WP_20141212_14_10_58_Pro

]]> http://www.shangerxin.com/?feed=rss2&p=85 0