The Shaker is mainly divided into RC, LC Shaker and crystal Shaker
1. RC Shaker： The Shaker that use the RC network as the frequency-selective phase-shifting network are collectively referred to as RC sine Shaker and are audio Shaker.
2. The LC Shaker uses an LC tank as the positive feedback Shaker for the phase shift and frequency selection network called the LC Shaker.
LC Shaker classification:
1.Transformer coupling ·Single tube LC sine Shaker ·Differential pair tube LC sine Shaker
2. Three-point type Capacitance three-point type (Cabipit) Shaker Three-point type (Hartley) Shaker
3 improved three-point type · Krasper Shaker· Syrah Shaker
4 differential pair tube Shaker
3. Crystal Shaker
The Shaker's oscillation frequency is controlled by a quartz crystal Shaker.
characteristic:
1. Physical and chemical properties are very stable.
2. With positive piezoelectric effect and inverse piezoelectric effect, quartz crystal resonant frequency ωs
△ When ω=ωs, the piezoelectric effect is the strongest, and ωs is the fundamental frequency.
△ When ω=nωs, the piezoelectric effect is also strong, which is called the frequency
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