Improved passive Rb atomic frequency standard servo control method and servo control circuit
A rubidium atomic frequency standard and servo control technology, which is applied to passive rubidium atomic frequency standard servo, improves the servo function, and miniaturizes the integrated circuit. Closed-loop locking and other issues
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[0011] As shown in Figure 1, the passive rubidium atomic frequency standard system includes an atomic frequency standard voltage-controlled crystal oscillator VCXD, an isolation amplifier circuit, a frequency multiplier circuit, and a microwave doubler mixer; the microwave search signal output by the microwave doubler mixer is sent to In the physical system, the physical system includes a spectral lamp 1, an integrated filter resonant bubble 2, a microwave cavity 3, a C field 4, a magnetic shield 5, a photocell 6, a coupling ring 7, a constant current source, a temperature controller, and a thermostat. The microwave search signal output by the microwave multiplier mixer is sent to the physical system, and the output signal of the physical system to realize the frequency discrimination of the quantum system is amplified by optical detection and square wave shaping, and the output frequency of the local oscillator is locked in the ground state ultrafine of the rubidium atom throug...
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