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Crystals

Crystals are solid materials composed of atoms, ions, or molecules arranged in a regular repeating structure or pattern. They often occur naturally and can also be made synthetically through controlled growth from a melting solution. The 7V31280001 crystal is a piezoelectric crystal that is employed in radio and radio frequency applications.

Applications

The 7V31280001 crystal is a great tool for radio experimenters for the purpose of experiments in radio signal transmission or receiving and is suitable for the transmission of radio signals in the frequency range of 3.2MHz to 7.2MHz. It is also useful for the synthesizing of ultra low frequencies. Therefore, it is found in many applications, such as communication systems, signal processing, wireless transmission systems, RFID systems, wireless LAN, microwave components, sonar systems and various frequency control systems.

Working Principle

Piezoelectric crystals such as the 7V31280001 act as a resonator when an alternating current is applied. When an electrical signal is applied to the crystal, it vibrates at a specific frequency, and when an alternating current is applied, the crystal vibrates at that frequency. The frequency of the crystal is dependent on the shape of the crystal and the cut chosen for the crystal. When the cut is made perpendicular to the long axis, the crystal will vibrate at its highest frequency, which is called its fundamental frequency. For the 7V31280001, this frequency is 7.2MHz when using a 9 pF load capacitance. If a different cut is used, the crystal will vibrate at its corresponding harmonic frequency, which is called its overtone frequency.

Piezoelectric crystals also switch between mechanical and electrical energy. When a mechanical stress is applied to the crystal, it generates an electrical current. Conversely, when an electrical current is applied to the crystal it deforms and oscillates at a given frequency. This is why the 7V31280001 is perfect for transmitting radio signals. When the crystal is excited by the generated electrical current, it vibrates and emits a signal at the frequency of oscillation, allowing the transmission of radio signals.

Conclusion

The 7V31280001 crystal is a great tool for radio experimenters and finds application in a range of radio and radio frequency systems. Its high overtone stability makes it an excellent choice for transmitting radio signals and its piezoelectric properties allow it to switch between mechanical and electrical energy, making it an ideal choice for communication systems.

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