A High-Frequency Thermostat for Alkali Metal Atomic Gas Chamber Heating

Abstract

The invention discloses a high-frequency thermostat for heating an alkali metal atomic gas chamber, comprising a power supply module, a main control module, a temperature acquisition module, a power adjustment module, a heating module and a human-computer interaction module. The main control module is used to realize the PID algorithm for system temperature control; the temperature acquisition module reads the temperature value of the gas chamber; the power adjustment module adjusts the heating power of the system by adjusting the heating voltage; the heating module converts the DC to high-frequency AC at the set frequency, Drive the heating film to heat; the human-computer interaction module communicates with the main controller through the serial port display screen through the UART interface to realize human-computer interaction. The high-frequency thermostat of the present invention can realize variable frequency high-power heating of 75W, 0-300KHz, and integrates a temperature acquisition module, a power adjustment module, a heating module, a human-computer interaction module and a PID algorithm on one circuit board , which is flexible to use and simple to operate.

Description

technical field [0001] The invention relates to the field of atomic gas chamber heating, in particular to a high-frequency constant temperature instrument for heating an alkali metal atomic gas chamber. Background technique [0002] With the rapid development of quantum technology, the atomic gas chamber based on spin-exchange relaxation theory (Spin-Exchange Relaxation Free, SERF) has been applied in the research of extremely weak magnetic measurement, ultra-high sensitivity inertial measurement and many other fields. In order for the atoms in the gas cell to reach the SERF state, the atomic gas cell needs to be heated at a high temperature to achieve the required atomic density, thereby ensuring that its spin exchange frequency is much greater than its Larmor precession frequency. Since general applications are extremely sensitive to magnetic field noise and thermal noise, it is required that the heating device must not introduce significant magnetic field noise and therma...

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a high-frequency, high-power integrated heating device, which can solve the problems of excessive thermomagnetic noise and the integration of the heating system caused in the heating process of the alkali metal gas chamber

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