Automatic frequency tuning control system

A control system and automatic tuning technology, applied in general control systems, control/regulation systems, program control, etc., can solve the problems of large power loss, long stabilization time, unfavorable high-frequency cavity rapid operation, and reduce power loss. , the effect of improving quality

Inactive Publication Date: 2015-04-01
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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Problems solved by technology

Then through about 30 minutes of high-power operation, the entire cavity and the entire cooling circuit can get a stable temperature value, and the temperature at this time is generally inconsistent with the temperature when the tuner is set, which makes the frequency of the cavity and the required The stable

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  • Automatic frequency tuning control system

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example 1： 1 10mm5mm to ，，2.5mm，5，1mm。 example 2：， 1 ， 1 or 。 example 3

[0019] The number of tuners mentioned is proposed according to the requirements of electric field tuning and frequency tuning. If the influence on the electric field is small, only the frequency range is required for calculation; if the electric field is required to be high, it is necessary to tune the electric field The tuner is set up locally, and the calculation method is to use the industry-wide 3D electromagnetic field software Microwave Studio to calculate the electric field and frequency changes. The size range is as mentioned above, and the coverage can meet the requirements. (Example 1: If you need a circular tuner with a diameter of 10mm to insert 5mm to get the operating frequency, if you use two tuners of the same size, the length of each inserted tuner will be close to 2.5mm, if there are 5 The same tuner, each insertion length is close to 1mm. Example 2: If the high-frequency cavity is small, one tuner can meet the needs of frequency modulation, and the fine-tunin...

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Abstract

The invention relates to the technical field of frequency control over high-frequency cavities of ion acceleration devices, in particular to an automatic frequency tuning control system, which comprises a drift tube high-frequency resonant cavity, wherein preset tuners are inserted into the cavity; a sampling ring arranged in the cavity is connected with an oscilloscope for displaying a voltage signal sampled from the cavity through a sampling line; driving motors are arranged on the tuners, and are connected with a control computer through a control line; the tuners are connected with the cavity through flanges; the control computer is used for determining a frequency difference between the design frequency of the cavity and the actual frequency of the cavity to control the driving motor to work through a voltage-to-frequency conversion algorithm. The automatic frequency tuning control system is applied to any high-frequency device required to work at stable frequency or any high-frequency system consisting of a plurality of high-frequency cavities, and can be used for remotely, rapidly and automatically tuning the frequency of the cavity or stabilizing the frequency of the cavity within a certain amplitude.

Description

technical field [0001] The invention relates to the technical field of frequency control of a high frequency cavity of an ion accelerator, in particular to an automatic frequency tuning control system. Background technique [0002] In the prior art, the application of the high-frequency power supply technology applied to radar in the accelerator field has greatly promoted the development of modern accelerators. In view of the particularity of the accelerator cavity, the required high-frequency cavity must have high stability Therefore, the high-frequency accelerator cavity has a tuner with stable tuning frequency. Most of the commonly used cavity tuning systems currently obtain a value close to a stable frequency by fixing the position of the tuner once. Then through about 30 minutes of high-power operation, the entire cavity and the entire cooling circuit can get a stable temperature value, and the temperature at this time is generally inconsistent with the temperature whe...

Claims

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Application Information

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IPC IPC(8): G05B19/04G05B15/02
CPCG05B19/0415G05B15/02
Inventor 卢亮孙列鹏张周礼
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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