Closed-loop control method and device of temperature of atomic gas chamber

An atomic gas chamber and temperature closed-loop technology, applied in temperature control, program control, computer control, etc., can solve the problem of high power consumption, meet the needs of engineering applications, reduce system power consumption, and improve environmental adaptability

Active Publication Date: 2020-01-10
BEIJING AUTOMATION CONTROL EQUIP INST
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Problems solved by technology

[0003] The invention provides a closed-loop control method and device for the temperature of an atomic gas chamber, which can solve the technical problem of high power consumption in the method for controlling the temperature of an atomic gas chamber in the prior art

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  • Closed-loop control method and device of temperature of atomic gas chamber
  • Closed-loop control method and device of temperature of atomic gas chamber

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Embodiment Construction

[0018] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0019] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit t...

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Abstract

The invention provides a closed-loop control method and device of temperature of an atomic gas chamber. The method includes: generating an electric bridge excitation signal by a first DDS (Direct Digital Synthesizer) circuit; outputting an electric bridge output signal by an unbalanced electric bridge, and amplifying the electric bridge output signal; outputting a demodulator chip output signal bya demodulator chip, and filtering the demodulator chip output signal; carrying out sampling on the demodulator chip output signal after filtering by an analog-to-digital converter at a current moment; calculating a resistance value of a thermistor at the current moment and the temperature of the atomic gas chamber at the current moment by an ARM (Advanced RISC Machines) processor; outputting a voltage signal by a digital-to-analog converter, and generating a heating driving signal is by a second DDS circuit; amplifying the heating driving signal by a variable gain amplifier, and controlling aheating piece of the atomic gas chamber to adjust the temperature of the atomic gas chamber in real time; and repeating the step 4 to the step 8 to realize closed-loop control of the temperature of the atomic gas chamber. By applying the technical solution of the invention, the technical problem of high power consumption of temperature control methods of the atomic gas chamber in the prior art issolved.

Description

technical field [0001] The invention relates to the technical field of atomic gas chambers, in particular to a method and device for closed-loop temperature control of an atomic gas chamber. Background technique [0002] The atomic gas chamber is the core sensitive unit of the atomic magnetometer and the atomic gyroscope. Its temperature stability directly affects the stability of the magnetic field measurement of the sensor and the closed-loop control, which restricts the improvement of the accuracy of the atomic gyroscope and the magnetometer. Therefore, the closed-loop temperature of the atomic gas chamber Control is a key technology in this field. In the prior art, high-power devices such as high-speed ADC, high-speed DAC, and processor are usually directly used to measure and control the temperature. power engineering application environment. Contents of the invention [0003] The invention provides a closed-loop control method and device for the temperature of an a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/24G05B11/42G05B19/042
CPCG05B11/42G05B19/042G05B19/0423G05B2219/21137G05D23/24
Inventor 秦杰薛帅万双爱刘建丰
Owner BEIJING AUTOMATION CONTROL EQUIP INST
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