Rubidium atomic clock working state detection signal measuring device

Abstract

The invention discloses a rubidium atomic clock working state detection signal measuring device. The rubidium atomic clock working state detection signal measuring device includes a first resistor, asecond resistor, a third resistor, a fourth resistor, a fifth resistor, a first diode, a second diode, a first operational amplifier and a second operational amplifier, and further includes two RC filters. The rubidium atomic clock working state detection signal measuring device has simple structure and stable performance; and through the combination of the two operational amplifiers and the two diodes, an alternating current detection signal can be converted into a direct current detection signal, and the temperature drift defect of an ordinary diode can be overcome; therefore, the rubidium atomic clock working state detection signal measuring device has lower equivalent internal resistance and temperature sensitivity, and can achieve a detection performance close to an ideal diode.

Description

technical field [0001] The invention belongs to the technical field of rubidium atomic clock detection signal measurement, and more specifically relates to a rubidium atomic clock working state detection signal measurement device, which can be used for high-performance space-borne rubidium atomic frequency standard. Background technique [0002] Rubidium atomic frequency standards are widely used due to their small size, low power consumption, and good stability, especially in the fields of satellite positioning and navigation. It is mainly composed of two parts: physical system and circuit. The former provides a reference frequency as a frequency discriminator, and the latter is equivalent to a frequency locked loop to lock the output frequency of the voltage-controlled crystal oscillator to the reference frequency of the physical system. The physical system can be roughly divided into two parts: spectral lamp and cavity bubble system. After the light emitted by the spect...

AI Technical Summary

Problems solved by technology

However, for the high-performance rubidium atomic clock used in the spaceborne environment, due to the decision of the working environment, it is impossible to monitor the AC signal of the light detection in real time. It can only convert the AC signal of the light detection into a DC signal for long-term collection and monitoring, and use it as a working status detection of the rubidium atomic clock. signal to judge the working status of the rubidium atomic clock

Moreover, the optical detection AC signal can only be observed in real time on the ground, and cannot be stored continuously

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