Atomic frequency standard equipment temperature coefficient compensation device and method
An atomic frequency standard and temperature coefficient technology, which is applied in the directions of output stability, electrical components, and automatic power control. , The effect of shortening the debugging cycle
Active Publication Date: 2017-04-19
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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Problems solved by technology
[0004] The invention provides a temperature coefficient compensation device and method for atomic frequency standard equipment, which solves the problem that the temperature coefficient of atomic frequency standard equipment is difficult to debug and difficult to control
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[0020] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0021] The technical solutions provided by various embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.
[0022] figure 1 It is a schematic diagram of the temperature coefficient compensation device of the atomic frequency standard equipment of the present invention, specifically incl...
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The invention discloses an atomic frequency standard equipment temperature coefficient compensation device and method, and solves the problems that the atomic frequency standard equipment temperature coefficient is not easy to debug or control. The atomic frequency standard equipment temperature coefficient compensation device comprises a thermistor, a constant current source circuit, a compensation circuit and a C-field circuit. The thermistor is arranged in the temperature sensitive area of atomic frequency standard equipment. The constant current source circuit is connected with the thermistor and outputs constant current to be used for the thermistor to generate temperature detection voltage. The compensation circuit is used for converting the temperature detection voltage into compensation current. The C-field circuit comprises a C-field coil which is used for adjusting an atomic clock frequency standard signal. The C-field circuit inputs the compensation current so as to change the working current of the C-field coil and correct the frequency standard signal. The whole machine residual temperature coefficient is quantitatively adjusted to be zero in one time so that the debugging period can be greatly shortened, the index can be enhanced, the cost can be reduced and the whole machine long-term stability index can be enhanced.
Description
technical field [0001] The present application relates to the technical field of electronic equipment, in particular to a temperature compensation circuit and compensation method for atomic frequency standard equipment. Background technique [0002] Atomic frequency standard equipment has the characteristics of small size, light weight, low power consumption, etc., and is widely used. The atomic frequency standard equipment is a secondary frequency standard, and its frequency stability and accuracy are greatly affected by the environment, especially by temperature. For example, in the design and manufacture of high-precision rubidium atomic frequency standard equipment, the temperature coefficient is a bottleneck factor for improving the overall index of rubidium atomic frequency standard equipment. The previous rubidium atomic frequency standard equipment circuits often did not contain a specific temperature compensation circuit, but the temperature coefficient of the whol...
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IPC IPC(8): H03L1/02H03L7/26
CPCH03L1/022H03L7/26
Inventor 李春景丛东亮么晓坤徐娆美高连山
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT