Automatic operation time sequence design method for mercury ion microwave frequency standard

By designing a fully automated runtime sequence method, the operation steps of the mercury ion microwave frequency standard are automatically executed, solving the problems of cumbersome manual operation and inaccurate locking in the existing technology, and achieving the effects of simplifying operation and improving locking accuracy.

CN121832227APending Publication Date: 2026-04-10BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-26
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

The existing mercury ion microwave frequency standard has complicated operation procedures, requires manual monitoring, is susceptible to human interference, and the locking process is not accurate enough.

Method used

A fully automated runtime sequencing method is designed, which controls the operation of the microwave source, voltage-controlled crystal oscillator and mercury ion microwave frequency standard system through software, monitors peripheral parameters in real time, and automatically executes steps such as frequency sweeping, fitting and locking to ensure that the system operates under normal conditions.

Benefits of technology

It simplifies the operation process, reduces human interference, improves the accuracy of locking and the authenticity of data, saves human resources, and provides a good guarantee for experimental conditions.

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Abstract

The invention provides an automatic operation time sequence design method for a mercury ion microwave frequency standard, which is automatically operated by software according to a time sequence, and comprises the following steps: when parameters of microwaves, crystal oscillators and mercury lamps are read back to be consistent with set values and the mercury lamps are lightened on time, starting microwave frequency sweeping; after frequency sweeping is finished, it is judged that the scanning range and the semaphore are abnormal, and fluorescence signal data fitting is carried out; fitting to obtain center frequency and fluorescence spectrum line width data, and setting the center frequency and the line width if no abnormity exists; if the read-back data is not abnormal, crystal oscillator pressure sweeping is carried out; after voltage sweeping is finished, it is judged that the scanning range and the semaphore are not abnormal, and crystal oscillator signal data fitting is carried out; fitting to obtain a center voltage value, and setting the center voltage value for the crystal oscillator if no abnormity exists; and if the read-back data is not abnormal, starting to lock the whole machine. Real-time monitoring is carried out in the locking process, it is ensured that the system is locked under the condition that the important peripheral working condition is normal, and it is ensured that data is true and credible.
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Description

Technical Field

[0001] This invention relates to the field of microwave frequency standard technology, and specifically to an automatic operation sequence design method for a mercury ion microwave frequency standard. Background Technology

[0002] The mercury ion microwave frequency standard is a novel frequency standard that employs a completely new working principle, distinct from traditional atomic frequency standards such as those for hydrogen, rubidium, and cesium. It features minimal impact from external fields, minimal motion effects, and a long quantum state coherence time. Its narrow spectral linewidth and small frequency shift are primarily due to the application of electrostatic, magnetic, or radio frequency fields to the ion trap, confining the working ions in an ultra-high vacuum at the center of the trap. This isolates the ions, placing them in a "completely static state," unaffected by external interference, thus significantly improving the performance of the ion microwave frequency standard. The mercury ion microwave frequency standard uses a spectral lamp to pump the hyperfine energy levels of the ions. Atoms at higher energy levels undergo spontaneous emission before transitioning to lower energy levels, simultaneously generating a fluorescence signal that can be acquired by a frequency detection system. The mercury ion microwave frequency standard comprises a microwave source, a voltage-controlled crystal oscillator (VCO), and a confined ion field. The microwave source directly acts on the confined ion field to induce mercury ions to transition and generate a fluorescence signal. The VCO directly acts on the microwave source to ensure a stable microwave output. In summary, the mercury ion microwave frequency standard uses external circuitry to collect fluorescence signals and a high-voltage controlled crystal oscillator to drive the output frequency of the microwave source. The mercury ion microwave frequency standard system first performs a microwave frequency sweep. During this sweep, mercury ions in the ground state (F=0) after ionization by the electron gun are further stimulated by the microwave to transition to the ground state (F=1). The spectral lamp then excites the mercury ions in the ground state (F=1), causing them to transition to the excited state, and then back to the ground state (F=0 or F=1). This process generates a fluorescence signal, which is then transmitted through the microwave. PMT can acquire the center frequency and linewidth of the fluorescence signal spectrum and microwave scanning spectrum, then perform crystal oscillator voltage scanning to acquire the center voltage value, and then detect the fluorescence signal at the left and right points of the center frequency. The signal difference is fed back to the crystal oscillator voltage to lock the output frequency of the voltage-controlled crystal oscillator. As described in patent CN202411966063, the voltage of the voltage-controlled crystal oscillator is locked, allowing the microwave source to generate a stable microwave output and achieve long-term stable operation of the mercury ion microwave frequency standard. However, the steps are cumbersome, require manual supervision, and are extremely inconvenient to operate.

[0003] Therefore, this invention proposes a fully automated method for sequential execution of mercury ion microwave frequency standard operation, which simplifies the operation, eliminates the need for human intervention, removes human interference in the experimental environment, and ensures the authenticity and reliability of experimental results by monitoring dynamic parameters, thereby improving the accuracy of locking and providing good experimental conditions for verifying the locking technology. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic runtime sequence design method for a mercury ion microwave frequency standard. The software automatically performs various operations on the microwave source, voltage-controlled crystal oscillator, and mercury ion microwave frequency standard system according to the timing sequence. During the process of locking the output frequency of the voltage-controlled crystal oscillator, the parameters of peripheral devices such as mercury lamp and PMT photomultiplier tube are monitored in real time to ensure that the system locks the frequency when the working conditions of important peripheral devices are normal, thus ensuring the authenticity and reliability of the data.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] In a first aspect, the present invention provides an automatic runtime sequence design method for a mercury ion microwave frequency standard, the method comprising:

[0007] When the timing sequence is started, the automatic operation process is initiated to perform microwave source frequency sweep and collect fluorescence signals. After the frequency sweep is completed, the mercury ion microwave frequency standard automatically judges whether there is any abnormality during the microwave source frequency sweep. If it is normal, the mercury ion microwave frequency standard will automatically enter the next timing step. If there is an abnormality, the timing will stop and the system will automatically prompt the abnormal point.

[0008] In the fluorescence data processing sequence, the collected fluorescence signal is automatically fitted with a frequency-fluorescence spectrum to obtain the center frequency and spectral linewidth. The mercury ion microwave frequency standard will automatically determine whether there are any abnormalities in the fluorescence spectrum fitting step. If it is normal, the system will automatically proceed to the next timing step; if it is abnormal, the timing will stop and the system will automatically prompt the abnormal point.

[0009] The crystal oscillator scanning timing sequence automatically performs crystal oscillator scanning and collects voltage-fluorescence spectra. After the scanning is completed, the mercury ion microwave frequency standard will automatically determine whether there are any abnormalities in the crystal oscillator scanning process. If it is normal, the system will automatically proceed to the next timing step; if there is an abnormality, the timing will stop and the system will automatically prompt the abnormal point.

[0010] The voltage data processing sequence is automatically entered to obtain the center voltage V0 as the preset value of the lock voltage. The mercury ion microwave frequency standard will automatically judge whether there is any abnormality in the voltage-fluorescence spectrum fitting process. If it is normal, the system will automatically enter the next timing step; if there is an abnormality, the timing will stop and the system will automatically prompt the abnormal point.

[0011] Automatic locking timing: Upon entering the automatic locking timing stage, the mercury ion microwave frequency standard automatically performs left and right frequency hopping operations on the center frequency of the microwave source. The mercury ion microwave frequency standard automatically detects fluorescence signals and feeds back the difference in fluorescence signals between the left and right sides of the frequency hopping to the locking voltage. The automatic locking process is automatically repeated, and the mercury ion microwave frequency standard automatically closes the loop and locks.

[0012] In some possible implementations, the timing may be initiated prior to:

[0013] Set the parameters: set the frequency scanning range and frequency step of the microwave source, the voltage scanning range and voltage step of the crystal oscillator, and the working voltage and current of the mercury lamp. After setting, check the readback command data and observe the brightness of the mercury lamp. If the readback results are consistent with the set data and the mercury lamp is lit, it indicates that there are no abnormalities in the parameter setting steps.

[0014] In some possible implementations, the automatic locking timing is followed by:

[0015] The timing is monitored in real time. During the cycle of automatic timing locking, the mercury ion microwave frequency standard automatically monitors the mercury lamp current and the magnitude of the detection signal. If an abnormality occurs during the automatic locking process, an inspection procedure needs to be performed.

[0016] In some possible implementations, during the timing activation, the mercury ion microwave frequency standard automatically determines whether there are any abnormalities during the microwave source frequency sweep process, specifically including:

[0017] The last frequency point F of the frequency sweep last With setting the end point F end The absolute value of the difference is less than the step value (Formula 1), and the set of fluorescence signal values ​​F vector If there is no element 0 (Formula 2), then there is no abnormality during the microwave source frequency sweep process;

[0018] |F last -F end |<F step (1)

[0019]

[0020] In some possible implementations, during the fluorescence data processing sequence, the mercury ion microwave frequency standard will automatically determine whether there are any abnormalities in the fluorescence spectral fitting step, specifically including:

[0021] The center frequency F0 is between Fbegin and Fend, and the spectral linewidth W is between 0 and the absolute value of the difference between Fbegin and Fend (Formula 3 and Formula 4), indicating that there is no abnormality in the fluorescence spectral fitting process. At this time, the mercury ion microwave frequency standard automatically sets the frequency point F0 and linewidth W to the microwave source. When the data readback result is consistent with the set data, the fluorescence spectral fitting step is normal.

[0022] F begin <F0<F end (3)

[0023] 0 < W < |F begin -F end | (4).

[0024] In some possible implementations, during the crystal oscillator scanning timing, the mercury ion microwave frequency standard will automatically determine whether there are any abnormalities in the crystal oscillator scanning process, specifically including:

[0025] Scan the last voltage point V last With setting the end point V end The absolute value of the difference is less than the step value, and the set of signal values ​​V vector If element 0 is absent (Formulas 5 and 6), then there is no abnormality in the crystal oscillator sweeping process;

[0026] |V last -V end |<V step (5)

[0027]

[0028] In some possible implementations, during the voltage data processing timing, the mercury ion microwave frequency standard will automatically determine whether there are any abnormalities in the voltage-fluorescence spectral line fitting process, specifically including:

[0029] The mercury ion microwave frequency standard automatically sets its center voltage V0 to the crystal oscillator; when the data readback result is consistent with the set data, there is no abnormality in the voltage data processing timing steps.

[0030] V begin <V0<V end (7).

[0031] In some possible implementations, the automatic locking timing automatically performs left and right frequency hopping operations on the center frequency F0 of the microwave source, the mercury ion microwave frequency standard automatically detects signals, and the feedback voltage difference automatically locks the voltage, specifically including:

[0032] The mercury ion microwave frequency standard automatically performs left and right frequency hopping operations on the microwave source according to the set timing sequence. The frequency hopping points are F1 and F2, and the frequency hopping sequence of each cycle is F1, F2, F1. At each frequency hopping point, the mercury ion microwave frequency standard automatically detects the signal and feeds back the difference V between the three sets of signal values ​​V1, V2, and V3 to the crystal oscillator voltage. The automatic locking process is automatically repeated, and the mercury ion microwave frequency standard automatically closes the loop and locks.

[0033] V = V2 × 2 - (V1 + V3) (8).

[0034] In some possible implementations, during the real-time monitoring sequence, the mercury ion microwave frequency standard automatically monitors the mercury lamp current C during the periodic cycle of the automatically locked timing. lamp and the magnitude of the detection signal, specifically including:

[0035] When C lamp<0.1 (Formula 9), or the magnitude of the detection signal V1, V2, V3, which has the same meaning as V1, V2, V3 in the automatic locking sequence, if the value is 0 (Formula 10), then an abnormality has occurred in the locking process and an inspection procedure needs to be performed.

[0036] C lamp <0.1 (9)

[0037] V1=0||V2=0||V3=0 (10).

[0038] In a second aspect, the present invention also provides a computer-readable storage medium, the computer-readable storage medium including storage of a computer program or instructions, which, when executed, cause the automatic runtime sequence design method for a mercury ion microwave frequency standard described in the first aspect to be executed.

[0039] This invention provides an automatic operation sequence design method for a mercury ion microwave frequency standard, simplifying the complex closed-loop locking operation steps of the voltage-controlled crystal oscillator output frequency. The mercury ion microwave frequency standard system automatically completes various tedious operations such as microwave frequency sweep, crystal oscillator voltage sweep, overall closed-loop locking, and real-time monitoring of key parameters according to the settings. Specifically, it includes: when the microwave, crystal oscillator, and mercury lamp parameters are consistent with the set values ​​and the mercury lamp lights up as scheduled, microwave frequency sweep begins; after the frequency sweep, if the scanning range and signal quantity are found to be normal, fluorescence signal data fitting begins; the center frequency and fluorescence spectral linewidth data are obtained through fitting, and if both are normal, the center frequency and linewidth of the microwave source are set; if the readback data is normal, crystal oscillator voltage sweep begins; after the voltage sweep, if the scanning range and signal quantity are found to be normal, crystal oscillator signal data fitting begins; the center voltage value is obtained through fitting, and if it is normal, the center voltage value of the crystal oscillator is set; if the readback data is normal, overall locking begins. During the locking process, the system monitors the parameters of peripherals such as the mercury lamp and PMT photomultiplier tube in real time to ensure that the voltage-controlled crystal oscillator output frequency is locked when the critical peripherals are operating normally. This eliminates the need for full-time manual intervention, saving manpower and removing human interference from the environment, thus improving locking accuracy. Furthermore, the system can dynamically monitor parameters to ensure the authenticity of the locking data, providing a solid foundation for verifying the closed-loop locking technology of the entire device. Attached Figure Description

[0040] Figure 1 A flowchart of an automatic runtime sequence design method for a mercury ion microwave frequency standard provided by the present invention. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] Example 1

[0043] This embodiment provides an automatic runtime sequence design method for a mercury ion microwave frequency standard, such as... Figure 1 ,include:

[0044] Step 1: Setting Parameters. Before starting the automatic operation process, manually set the frequency scanning range F of the microwave source. begin F end and frequency step F step The voltage scan range of the crystal oscillator V begin V end and pressure point step V step and the working voltage V of the mercury lamp lamp and current C lamp After setting up, check the readback command data and observe the brightness of the mercury lamp. If the readback data matches the setting data and the mercury lamp is lit, it indicates that there were no errors in the setting parameters and steps.

[0045] This concludes the parameter setting section.

[0046] Step 2: Timing Activation. Initiate the automatic operation process, perform a microwave source frequency sweep, and collect fluorescence signals. After the frequency sweep is complete, the mercury ion microwave frequency standard automatically determines whether there were any abnormalities during the microwave source frequency sweep: the last frequency point F... last With setting the end point F end The absolute value of the difference is less than the step value (Formula 1), and the set of fluorescence signal values ​​F vector If element 0 is absent (Formula 2), there will be no abnormality during the microwave source frequency sweep process; if normal, the mercury ion microwave frequency standard will automatically enter the next timing step.

[0047] |F last -F end |<F step (1)

[0048]

[0049] This concludes the time-series initiation section.

[0050] If an anomaly occurs, the timing process will stop, and the system will automatically display the anomaly information, such as "microwave source scanning error, target frequency not reached," etc. The process will continue until normal operation is restored.

[0051] Step 3: Fluorescence Data Processing Sequence. If the microwave source frequency sweep is normal, the collected fluorescence signals are automatically fitted with a frequency-fluorescence spectrum to obtain the center frequency F0 and the spectral linewidth W. The mercury ion microwave frequency standard will automatically determine if there are any abnormalities in the fluorescence spectral line fitting step: the center frequency F0 is between F0 and F0. begin and F end Between, and the spectral linewidth W is between 0 and F begin –F end The absolute values ​​of the differences (Formulas 3 and 4) indicate that there are no abnormalities in the fluorescence spectrum fitting process. At this time, the mercury ion microwave frequency standard automatically sets the frequency point F0 and linewidth W to the microwave source. When the data readback result is consistent with the set data, the fluorescence spectrum fitting step is normal. If normal, the system will automatically proceed to the next timing step. The frequency-fluorescence spectrum consists of a horizontal axis (microwave frequency point) and a vertical axis (fluorescence signal value). The purpose of this spectrum is to find the center frequency of the microwave source corresponding to the maximum value of the vertical axis (maximum value of the fluorescence signal).

[0052] F begin <F0<F end (3)

[0053] 0 < W < |F begin -F end | (4);

[0054] This concludes the timing section of fluorescence data processing.

[0055] If an anomaly is detected, the timing process will stop, and the system will automatically display the anomaly information, such as "abnormal fitted curve" or "center frequency shift." The process will continue until the anomaly is resolved.

[0056] Step 4: Crystal Oscillator Scanning Timing. The crystal oscillator scan is performed automatically, collecting voltage-fluorescence spectra. After the scan is complete, the mercury ion microwave frequency standard will automatically determine if there are any abnormalities in the crystal oscillator scanning process: scan the last voltage point V... last With setting the end point V end The absolute value of the difference is less than the step value, and the set of signal values ​​V vector If element 0 is absent (Formulas 5 and 6), the crystal oscillator scanning process is normal; if normal, the system will automatically proceed to the next timing step.

[0057] |V last -V end |<V step (5)

[0058]

[0059] At this point, the crystal oscillator scanning timing section is complete.

[0060] If an anomaly is detected, the timing process will stop, and the system will automatically display an error message, such as "voltage scan abnormal, target voltage point not reached," etc. The process will continue until normal operation is restored.

[0061] Step 5: Voltage Data Processing Sequence. If the crystal oscillator scan shows no abnormalities, the system automatically enters the voltage data processing sequence to obtain the center voltage V0 as the preset value for the lock-in voltage. The mercury ion microwave frequency standard will automatically determine whether there are any abnormalities during the voltage-fluorescence spectrum fitting process. V0 is between V... begin With V end The interval (Equation 7) indicates whether there are any abnormalities in the fluorescence spectrum fitting process. The mercury ion microwave frequency standard system automatically sets the center voltage V0 of the crystal oscillator. When the data readback result is consistent with the set data, there are no abnormalities in the voltage data processing timing steps, and the system will automatically enter the next timing step. The voltage-fluorescence spectrum consists of a horizontal axis (crystal oscillator voltage) and a vertical axis (fluorescence signal). The purpose is to find the crystal oscillator voltage corresponding to the maximum value of the vertical axis (the point where the fluorescence signal is strongest), i.e., V0.

[0062] V begin <V0<V end (7);

[0063] This concludes the timing section for voltage data processing.

[0064] If an anomaly is detected, the timing process will stop, and the system will automatically display the anomaly information, such as "abnormal fitting curve" or "center voltage deviation." The process will continue until the anomaly is resolved.

[0065] Step Six: Automatic Timing Lock. Upon entering the automatic timing lock stage, the mercury ion microwave frequency standard automatically performs frequency hopping operations on the left and right sides of the microwave source's center frequency F0. The hopping frequency points are F1 and F2, respectively, and the hopping sequence for each cycle is F1, F2, F1. At each hopping point, the mercury ion microwave frequency standard automatically detects fluorescence signals and feeds back the difference V between the three sets of fluorescence signal values ​​V1, V2, and V3 to the crystal oscillator voltage to the locking voltage. This automatic locking process is automatically repeated, and the mercury ion microwave frequency standard automatically closes the loop and locks.

[0066] V = V2 × 2 - (V1 + V3) (8);

[0067] This concludes the automatic timing lock section.

[0068] Step 7: Real-time timing monitoring. During the cyclical process of automatic timing locking in Step 6, the mercury ion microwave frequency standard automatically monitors the mercury lamp current C. lamp and the magnitude of the detection signal, when C lamp<0.1 (Formula 9), or the numerical values ​​of the number of detection signals V1, V2, V3, which have the same meaning as V1, V2, V3 in step six. When the value is 0 (Formula 10), an abnormality has occurred in the locking process and an inspection procedure needs to be performed.

[0069] C lamp <0.1 (9)

[0070] V1=0||V2=0||V3=0 (10);

[0071] This concludes the real-time monitoring time series section.

[0072] Step 8: Automatic Sequence Stop. The cycle from Step 2 to Step 6, including Step 6, requires manual intervention to stop the automatic sequence. To restart, begin execution from Step 1.

[0073] This concludes the automatic timing stop section.

[0074] Example 2

[0075] This invention provides a computer-readable storage medium that stores a computer program or instructions that, when executed, cause the method of Embodiment 1 to be performed.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for automatic run-time sequence design of a mercury-ion microwave frequency standard, characterized in that, The method comprises: Timing opening, opening the automatic running process, collecting fluorescence signals by sweeping the frequency of the microwave source; after the frequency sweeping is completed, the mercury ion microwave frequency standard automatically judges whether there is an abnormality in the microwave source frequency sweeping process, if normal, the mercury ion microwave frequency standard will automatically enter the next timing step; if abnormal, the timing stops, and the system automatically prompts the abnormal point; Fluorescence data processing timing, automatically performing frequency-fluorescence spectrum fitting on the collected fluorescence signals, thereby obtaining the center frequency and the spectrum line width, and the mercury ion microwave frequency standard will automatically judge whether there is an abnormality in the fluorescence spectrum fitting step, if normal, the system will automatically enter the next timing step; if abnormal, the timing stops, and the system automatically prompts the abnormal point; Crystal oscillator scanning timing, automatically performing crystal oscillator scanning, and collecting voltage-fluorescence spectrum; after the scanning is completed, the mercury ion microwave frequency standard will automatically judge whether there is an abnormality in the crystal oscillator scanning process, if normal, the system will automatically enter the next timing step; if abnormal, the timing stops, and the system automatically prompts the abnormal point; Voltage data processing timing, automatically entering the voltage data processing timing, thereby obtaining the center voltage as the preset value of the locking voltage, and the mercury ion microwave frequency standard will automatically judge whether there is an abnormality in the voltage-fluorescence spectrum fitting process, if normal, the system will automatically enter the next timing step; if abnormal, the timing stops, and the system automatically prompts the abnormal point; Automatic locking timing, entering the automatic locking timing stage, the mercury ion microwave frequency standard automatically performs center frequency left and right side frequency hopping operation on the microwave source, the mercury ion microwave frequency standard automatically performs fluorescence signal detection, and feeds back the fluorescence signal difference of the left and right side frequency hopping to the locking voltage, automatically repeatedly executes the automatic locking process, and the mercury ion microwave frequency standard automatically performs closed-loop locking.

2. The automatic run-time sequence design method for a mercury-ion microwave frequency standard according to claim 1, wherein, The timing opening further comprises: Setting parameters, setting the frequency scanning range and frequency point step of the microwave source, the voltage scanning range and voltage point step of the crystal oscillator, and the working voltage and current of the mercury lamp, after the setting is completed, checking the read-back instruction data and observing the bright and dark state of the mercury lamp, the read-back results of the above data are consistent with the setting data, and the mercury lamp is lit, which indicates that the parameter setting step is normal.

3. The automatic run-time sequence design method for a mercury-ion microwave frequency standard according to claim 1 or 2, characterized in that, The automatic locking timing further comprises: Real-time monitoring timing, in the periodical cycle process of the automatic locking timing, the mercury ion microwave frequency standard automatically monitors the mercury lamp current and the detection signal size, and if an abnormality occurs in the automatic locking process, a check process needs to be executed.

4. The automatic run-time sequence design method of a mercury-ion microwave frequency standard according to any one of claims 1-3, characterized in that, In the timing opening, the mercury ion microwave frequency standard automatically judges whether there is an abnormality in the microwave source frequency sweeping process, specifically comprising: The last frequency point F of the sweep last The absolute value of the difference between the set end point F end and the last frequency point F of the sweep is less than the step value, and there is no element 0 in the set of fluorescence signal values F vector , then there is no abnormality in the microwave source sweep process.

5. The automatic run-time sequence design method of a mercury-ion microwave frequency standard according to any one of claims 1-3, characterized in that, In the fluorescence data processing timing, the mercury ion microwave frequency standard will automatically judge whether there is an abnormality in the fluorescence spectrum fitting step, specifically comprising: The center frequency F0 is between F begin and F end , and the spectral line width W is between 0 and the absolute difference between F begin and F end . This indicates that there is no abnormality in the fitting of the fluorescent spectral line, and the mercury ion microwave frequency standard automatically sets the frequency F0 and the line width W for the microwave source. When the read-back result of the data is consistent with the set data, the fluorescent spectral line fitting step is normal.

6. The automatic run-time sequence design method of a mercury-ion microwave frequency standard according to any one of claims 1-3, characterized in that, In the crystal oscillator scanning timing, the mercury ion microwave frequency standard will automatically judge whether there is an abnormality in the crystal oscillator scanning process, specifically comprising: Scan the last voltage point V last With setting the end point V end The absolute value of the difference is less than the step value, and the set of signal values ​​V vector If element 0 is absent, then there is no abnormality in the crystal oscillator sweeping process.

7. The automatic run-time sequence design method of a mercury-ion microwave frequency standard according to any one of claims 1-3, characterized in that, In the voltage data processing timing, the mercury ion microwave frequency standard will automatically judge whether there is an abnormality in the voltage-fluorescence spectrum fitting process, specifically comprising: The mercury ion microwave frequency standard automatically sets the center voltage V0 of the crystal oscillator; when the read-back results of the data are consistent with the setting data, the voltage data processing timing step is normal.

8. The automatic run-time sequence design method of a mercury-ion microwave frequency standard according to any one of claims 1-3, characterized in that, In the automatic locking timing, the microwave source is automatically operated to jump frequency on the left and right sides of the center frequency, the mercury ion microwave frequency standard automatically performs signal detection, and a voltage difference is fed back to automatically lock the voltage. The mercury ion microwave frequency standard automatically operates the microwave source to jump frequency on the left and right sides of F0 according to the set timing, and the jump frequency points are F1 and F2. The jump frequency sequence of each cycle is F1, F2, and F1. At each jump frequency point, the mercury ion microwave frequency standard automatically performs signal detection, and the difference V of the values V1, V2, and V3 of the three groups of signals is fed back to the crystal oscillator voltage. The automatic locking process is automatically repeated, and the mercury ion microwave frequency standard is automatically closed-loop locked.

9. The automatic run-time sequence design method for mercury-ion microwave frequency standards of claim 3, wherein, In the real-time monitoring timing, during the period cycle of the automatic locking timing, the mercury ion microwave frequency standard automatically monitors the mercury lamp current C lamp and the detection signal size, specifically comprising: When C lamp <0.1, or the detection signal size V1, V2, V3 is consistent with V1, V2, V3 in the automatic locking timing, the value 0 appears, then an exception occurs in the locking process, and the check process needs to be performed.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium comprises a computer program or instructions which, when executed, cause the method of any one of claims 1-9 to be performed.

Citation Information

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