File:Phase Comparison image two waves.gif
此为最大尺寸。
Phase_Comparison_image_two_waves.gif （640 × 480像素，文件大小：12 KB，MIME类型：image/gif）
摘要
| 描述 |
English: A comparison of the phase of two waveforms, usually of the same nominal frequency. In time and frequency metrology, the purpose of a phase comparison is generally to determine the frequency offset of a device under test (DUT) with respect to a reference.
A phase comparison can be made by connecting two signals to a two-channel oscilloscope. The oscilloscope will display two sine waves, as shown in the graphic. |
| 日期 | |
| 来源 | National Institute of Standards and Technology (NIST) [1] |
| 作者 | National Institute of Standards and Technology (NIST) [2] |
许可协议
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This image is in the public domain in the United States because it is a work of the United States Federal Government, specifically an employee of the National Institute of Standards and Technology, under the terms of Title 17, Chapter 1, Section 105 of the US Code.
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| 日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
|---|---|---|---|---|---|
| 当前 | 2016年6月12日 (日) 05:31 | | 640 × 480（12 KB） | Steve Quinn | User created page with UploadWizard |
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