Temperature coefficient compensation device and method for atomic frequency standard equipment
A technology of atomic frequency standard and temperature coefficient, applied in the direction of output stability, electrical components, automatic power control, etc., can solve the problems of difficult control and difficult temperature coefficient of atomic frequency standard equipment, so as to improve the index and improve the long-term stability index , cost reduction effect
Active Publication Date: 2017-04-19
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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[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 a temperature coefficient compensation device and method for atomic frequency standard equipment, and solves a problem that the temperature coefficient of the atomic frequency standard equipment is not easy to debug and control. The device comprises a thermistor, a constant voltage source circuit, a compensation circuit, and a C field circuit. The thermistor is located in a temperature sensitive region of the atomic frequency standard equipment. The constant voltage source circuit is connected with the thermistor, outputs a constant voltage which is used for the thermistor to generate a temperature detection current. The compensation circuit is used for converting the temperature detection current into a compensation circuit. The C field circuit comprises a C field coil, and is used for adjusting a frequency standard signal of an atomic clock. The C field circuit inputs the compensation current, changes the working current of the C field coil, and corrects the frequency standard signal. The device quantitatively adjusts the residual temperature coefficient of the whole unit to zero at a time, can greatly shorten the testing period, improve the index, reduce the cost, and improve the long-time stability index of the whole unit.
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
CPCH03L1/02H03L7/26
Inventor 李春景丛东亮么晓坤徐娆美高连山
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT