Piezoelectric Crystal Oscillators

Crystal Oscillators are the Time Base on a wristwatch or a home clock, analog or digital, Mechanical clocks have become rare due to the Maintenance and Accuracy. Some crystals can change dimensions on a electric force, some generate electricity on Mechanical Strain.

Crystal Oscillator – Parallel Resonant

Ceramic Resonators – “The ceramic components are made of high stability piezoelectric ceramics that functions as a mechanical resonator. The frequency is primary adjusted by the size and thickness of the ceramic element.”

Piezoelectric Crystal Oscillators

 

In the mechanical gramophone a metal needle and a horn would amplify the sound. When Record players came, the use of magnetic pickups made the needle size a bit smaller but the signal was weak. The crystal type pickups made the needle thinner and the electricity generated by crystal moving on the grooves was large, in mV. A preamp was rarely required. But Equalization preprocessing of audio was needed, to match the ear response. The electric gramophone made LP or Long Playing Record Players possible. It is analogous to DVD having more capacity than CDROM.

Crystal Oscillator – Wikipedia

“When a crystal of quartz is properly cut and mounted, it can be made to distort in an electric field by applying a voltage to an electrode near or on the crystal. This property is known as piezoelectricity.”

Crystals and Their Applications

Introduction to Quartz Frequency Standards – More than one billion quartz crystal oscillators are produced annually for applications ranging from inexpensive watches and clocks to radio navigation and spacecraft tracking systems.

Microcontroller Clock-Crystal, Resonator. – rystals, ceramic resonators, RC (resistor, capacitor) oscillators, and silicon oscillators are four types of clock sources for use with a microcontroller (µC). The optimal clock source for an application depends on many factors including cost, accuracy, and environmental parameters.

Crystal Oscillator Tutorial Articles – Types of Crystals and oscillators, Frequency and  relationship with Temperature, Aging and Stability of the clock.

Technical Literature – Frequency Electronics Inc. – New discoveries, research and development information, and scholarly works from some of the engineers and scientists in the FEI family,

Thaikits – Electronic Kits for Learning

A group of test engineers in Thailand who worked in an Electronic factory more than 12 years have started a small business to sell electronic projects and electronic kits worldwide in 2007.

CH012 Transistor Curve Tracer adapter XY Oscilloscopes 2 ranges Bias

Thaikits - Electronic Kits for Learning

Some interesting kits are HHO High Frequency PWM DC Motor Speed Controller 30A, CH018 Cycling Timer 1.5 -180 minutes ON-OFF 12VDC/30A Heavy Duty 110V/240VAC, CH024 ICL8038 Function Generator Sine Triagle Square wave 0.5Hz-100kHz.

Thaikits.com
5/16 Moo 18 ,Bueng Kham Phroi,Lam Luk Ka, Pathum Thani 12150, Thailand

Futurlec Components and Semiconductors

Large stockist and supplier of electronic components throughout the world. The Electronic Components and Semiconductor Superstore.

Integrated Circuits, LED’s / LCD’s, Connectors, Microcontroller Boards, Hardware, Project Boxes, Stepper Motors.

Futurlec Semiconductor Superstore

“Orders from hobbyists and single part orders are most welcome. We do not have any minimum order charge and we welcome all customers from anywhere in the world.”

Mini Boards - Futurlec

Mini Boards – Futurlec

These small compact boards are ideal to enhance your control system or development project. Add new functions and expand the functionality of your system, with a wide range to boards to choose from, including MP3, Real-Time Clocks, Keypads, RS232, RS422, Flash Memories, SD Cards and many more.

Futurlec
1133 Broadway, Suite 706, New York, NY 10010 USA