34.905

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34.905 is a frequency standard created by the National Institute Of Standards and Technology (NIST). The purpose of this standard is to provide trustworthy and traceable frequency and time measurements for a wide range of applications.

In the world of physics, a frequency is the rate of which a wave or particle repeats at regular intervals. Frequency standards are used to measure the length and duration of wave propagation; these are critical for many scientific and technological applications.

In terms of applications, 34.905 can be used in a variety of settings including but not limited to: metrology, communications, instrumentation, precision timing, robotics, and navigation. It can also be used in many fields of science, including but not limited to chemistry, biology, physics, geophysics, and engineering.

In terms of its working principle, 34.905 works by utilizing a variety of different components, such as an oscillator, a low-noise amplifier, a frequency multiplier, a frequency detector, and a timebase. These components are all interconnected and working together to produce a precise frequency signal.

The oscillator is the starting point of the 34.905 frequency standard and can be used to measure or generate frequencies in the range of 0.1 Hz to 10 GHz. It typically has an accuracy of 0.001 Hz. The low-noise amplifier is responsible for amplifying the small voltage signal so that it can be accurately processed by the other components.

The frequency multiplier takes the output of the oscillator and multiplies it by some fractional value to reach the desired frequency. For example, if the value is 10, then the frequency of the output will be 10 times higher than the input frequency.

The frequency detector is used to detect the presence of a frequency signal and output a digital code indicating the exact frequency that has been detected. The timebase is responsible for allowing the other components to operate in a synchronized manner, resulting in accurate and reliable operation.

Overall, the 34.905 frequency standard is a reliable and accurate tool for measuring and generating accurate frequency and time signals for a wide variety of applications in the scientific and technological realm. It is highly useful in fields such as metrology, communications, instrumentation, robotics, and navigation as well as in many areas of science.

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