In traditional manufacturing enterprises, frequency meters are widely used in production testing of production lines. The frequency meter can quickly capture changes in the output frequency of the crystal oscillator. Users can quickly detect faulty crystal oscillator products by using the frequency meter, ensuring product quality.

Due to the rapid development of digital circuits and the popularity of integrated circuits, counters are widely used. Using electronic technology to measure frequency has a series of outstanding advantages, such as high accuracy, eye-catching and intuitive display, rapid measurement, and easy to automate the measurement process. Therefore, this method is currently the best.