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What Does A Resonator Do?Areas Of Application For Resonator

What Does A Resonator Do?Areas Of Application For Resonator

September 22 , 2023 0

When the intrinsic frequencies are close to equal, the maximum amplitude can be obtained. For example, AM radio, when the radio is the lc circuit intrinsic frequency and the transmitter frequency is the same, in the lc circuit to get the maximum amplitude of the signal, so as to receive a clear sound, usually tuning is to change the lc circuit inductance or capacitance to achieve the change in the circuit's intrinsic frequency to achieve the tuning of the selected station.The resonator is to let a certain (should be called a certain) frequency signal through, blocking other frequency signals, to achieve the purpose of selecting the Ze, when the signal frequency and the resonator intrinsic frequency is equal, the signal passes through the same as through a small resistor (or wire), when away from the intrinsic resonance frequency of the frequency attempt to pass it like a large impedance.

Principle OF Resonator

Resonator is an electronic component that generates a resonant frequency, commonly divided into quartz crystal resonators and ceramic resonators. The role of generating frequency, with stable, good anti-interference performance characteristics, widely used in a variety of electronic products. The frequency accuracy of quartz crystal resonators is higher than that of ceramic resonators, but the cost is also higher than that of ceramic resonators. Resonators mainly play the role of frequency control, all electronic products involved in the frequency of transmission and reception need resonators. Resonator types can be classified into two types according to their shape: in-line and SMD.
Quartz crystal resonators, referred to as quartz crystal or crystal oscillator, is the use of quartz crystals (also known as crystal) piezoelectric effect, used to generate high-precision oscillation frequency of an electronic component, belongs to the passive components. The component is mainly composed of quartz wafer, base, shell, silver glue, silver and other components. According to the status of the lead can be divided into direct insertion (with lead) and surface mount (without lead) two kinds of types
Mechanical force applied to certain dielectrics causes the relative displacement of the positive and negative charge centres within them, resulting in polarisation, which leads to the appearance of bound charges of opposite sign within the surfaces of the two ends of the dielectric. Within a certain stress range, the mechanical force and charge are linearly reversible. This phenomenon is called the piezoelectric effect.

Common Types Of Resonators

Quartz Crystal Resonators

Quartz crystal resonators have higher frequency accuracy than ceramic resonators, but they also cost more than ceramic resonators. Resonators are mainly used for frequency control, and are required for all electronic products that involve the transmission and reception of frequencies. Resonator types can be classified as in-line or SMD according to their shape.
Quartz crystal resonators, referred to as quartz crystals or crystal oscillators, is the use of quartz crystals (also known as crystals) piezoelectric effect, used to generate high-precision oscillation frequency - a kind of electronic components, belonging to the passive components. The component is mainly composed of quartz wafer, base, shell, silver glue, silver and other components. According to the lead condition, it can be divided into two types: direct insertion (with leads) and surface mount (without leads).

Ceramic Resonators

Ceramic oscillators use highly stable piezoelectric ceramics consisting primarily of lead zinc oxide (PZT) as mechanical resonators. When a voltage is applied, deformation occurs due to the piezoelectric effect and resonance occurs at a specific frequency. The resonance frequency is determined by the mode of vibration and the dimensions (length, thickness) of the ceramic substrate. Because it is smaller and cheaper than a crystal unit, it is often used instead of a crystal unit as a reference clock or signal source for electronic circuits. However, its frequency accuracy is poor, so it is limited to circuits that do not require high accuracy (0.001% error for crystals, but 0.5% in PZTs).

What Does A Resonator Do?

When the intrinsic frequencies are close to equal, the maximum amplitude can be obtained. For example, amplitude modulation radio, when the radio is c circuit intrinsic frequency and transmit frequency is the same, in the lc circuit can get the maximum amplitude of the signal, so as to receive a clear sound, usually tuning is to change the circuit inductance or capacitance of the size of the circuit to achieve changes in the circuit's intrinsic frequency to achieve the tuning of the station. The resonator is to let a (should be called a certain) frequency signal through, blocking other frequency signals, to achieve the purpose of selecting the Ze, when the signal frequency and the resonator intrinsic frequency is equal to the signal passes through the signal smoothly as through a small resistor (or wire), when away from the intrinsic resonance frequency of the frequency attempt to pass it on a large impedance.