High-power high-frequency electric heating system for laser optical pump atomic magnetometer

A high-power high-frequency electric heating system for a laser optical pump atomic magnetometer, wherein the system is used for heating an alkali gas chamber of the laser optical pump atomic magnetometer, comprising an oscillation generating module, a temperature detecting module, a control module, a power output module and a coil heating module;

• wherein the oscillation generating module is used for transmitting 1 MHz oscillation signals;
• the temperature detecting module is used for measuring a temperature of the alkali metal gas chamber to obtain a differential voltage;
• the control module performs an amplitude modulation on the 1 MHz oscillation signals based on the differential voltage to obtain 1 MHz oscillation signals after the amplitude modulation;
• the power output module is used for performing voltage amplifying on the 1 MHz oscillation signals after the amplitude modulation and inputting the 1 MHz oscillation signals after the amplitude modulation to the coil heating module, wherein the power output module comprises four identical high-frequency power amplifiers for amplifying a voltage of the 1 MHz oscillation signals after the amplitude modulation;
• meanwhile, the power output module further completes a maximum voltage output and a maximum current output twice a maximum voltage output and a maximum current output under a rated bandwidth of the high-frequency power amplifiers through a topological circuit;
• and
• the coil heating module is used for heating the alkali metal gas chamber based on a received voltage.