Frequency Electronics, Inc., together with its subsidiaries, engages in the design, development, manufacture, marketing, and sale of precision time and frequency control products and components for ...

If you’ve seen a big air-variable capacitor, you may have noticed that some of the plates may have slots cut into them. Why? [Mr Carlson] has the answer in the video below. The short answer: you can ...

Frequency combs are light sources with a spectrum that comprises a series of sharp, equally spaced lines. The frequencies of these lines are known to a very high degree of accuracy, which makes ...

Abstract: Time-frequency analysis (TFA) is an effective tool for addressing the issue of bearing fault diagnosis under variable speed conditions. As a class of improved TFA methods, sparse ...