Category Archives: crystal

Confessions Of A Reformed Frequency Standard Nut

Do you remember your first instrument, the first device you used to measure something? Perhaps it was a ruler at primary school, and you were taught to see distance in terms of centimetres or inches. Before too long you learned that these units are only useful for the roughest of jobs, and graduated to millimetres, or sixteenths of an inch. Eventually as you grew older you would have been introduced to the Vernier caliper and the micrometer screw gauge, and suddenly fractions of a millimetre, or thousandths of an inch became your currency.  There is a seduction to measurement, something …read more

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Posted in caesium standard, crystal, crystal oven, Featured, Frequency Standard, GPS standard, Interest, off-air standard, Original Art, radio hacks, rubidium standard | Leave a comment

A gas model made of magnets

Magnets are great stuff and everyone loves them, there are so many things you can do with them, including creating a model of the crystalline structure of solids, just as [Cody´sLab] did using a bunch of magnets inside a pair of plexiglass sheets.

Many materials have their atoms arranged in a highly ordered microscopic structure – a crystal-, including most metals, rocks, ceramics and ice, among others. The structure emerges when the material solidifies looking for the minimum energy configuration. Every atom interacts with its neighbors via microscopic forces forming several patterns depending on the specific material and conditions.

In …read more

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Posted in atomic structure, crystal, magnet, misc hacks | Leave a comment

Understanding The Quartz Crystal Resonator

Accurate timing is one of the most basic requirements for so much of the technology we take for granted, yet how many of us pause to consider the component that enables us to have it? The quartz crystal is our go-to standard when we need an affordable, known, and stable clock frequency for our microprocessors and other digital circuits. Perhaps it’s time we took a closer look at it.

The first electronic oscillators at radio frequencies relied on the electrical properties of tuned circuits featuring inductors and capacitors to keep them on-frequency. Tuned circuits are cheap and easy to produce, …read more

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Posted in crystal, crystal oscillator, Engineering, Frequency Standard, Hackaday Columns, oscillator, parts, Quartz, quartz crystal | Leave a comment