Temperature control method and system based on simple pendulum physical model and storage medium
A temperature control method and physical model technology, applied in the field of quantum information, can solve problems such as unknown parameters, hysteresis, random interference, etc., to achieve the effects of improving temperature control accuracy, improving resistance, and preventing overshoot and oscillation
Inactive Publication Date: 2021-06-08
深圳量旋科技有限公司
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Problems solved by technology
PID parameters play a decisive role in the control effect. In order to achieve good results in PID, when the controlled object changes, the parameters should be adjusted accordingly. In actual use, some parameters are unknown, and some parameters have hysteresis and random interference. Unable to obtain an accurate mathematical model, then the traditional PID algorithm will not achieve good results
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[0033] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0034] The technical term that the scheme of the present invention relates to:
[0035]
[0036] The present invention takes into account:
[0037] When doing quantum calculations in the nuclear magnetic resonance system where the permanent magnet provides a magnetic field environment, if the temperature of the magnet changes by 1K, the frequency of the nuclear magnetic resonance changes by about 1200ppm. Such a large frequency change will cause a gap between the optimal frequency point of the probe and the frequency of the nuclear magnetic signal. Bias affects the signal-to-noise ratio. At the same time, for the FWHM of the nuclear magnetic signal to be less than 1ppm and the stability of the frequency of the nuclear magnetic spectrum line, precise temperature control on the order of 1mK is required. Since each ...
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The invention discloses a temperature control method and system based on a simple pendulum physical model and a storage medium. The temperature control method comprises the following steps of acquiring the temperature data of a magnet in a nuclear magnetic resonance quantum information processing system; analyzing a temperature interval where the temperature data is located; according to the temperature interval where the temperature data is located, adopting a sectional PID algorithm, and combining with a temperature control model of the simple pendulum physical model, adjusting the corresponding temperature rising and falling potential energy and a damping coefficient, and then adjusting the heating power, so that the temperature can be controlled to reach the preset target temperature. According to the scheme, the sectional PID algorithm and a damped simple pendulum model design are combined, a high-precision temperature control algorithm based on the simple pendulum physical model is provided, the potential energy and damping coefficients can be adjusted according to different temperature intervals, a system can be helped to quickly reach a set temperature point, the overshoot oscillation of PID temperature control can be prevented, the resistance to environmental disturbance is improved, and the temperature control precision of a permanent magnet is effectively improved to the order of magnitude of 1 mK.
Description
technical field [0001] The invention relates to the technical field of quantum information, in particular to a temperature control method, system and storage medium based on a simple pendulum physical model. Background technique [0002] With the development of quantum information technology, a physical realization scheme of nuclear spin quantum information processing based on the nuclear magnetic resonance system is proposed. As a quantum information processor, the nuclear spin system has high control precision and long coherence retention time. Can be used to demonstrate many quantum algorithms very well. In the room temperature nuclear magnetic resonance system, permanent magnets can be used to provide the magnetic field. However, the magnetic field strength of the permanent magnet varies significantly with temperature. A temperature change of 1K can produce a change in the magnetic field strength of about 1200ppm. The half-maximum width of the spectral line is below 1pp...
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IPC IPC(8): G05D23/32
CPCG05D23/32
Inventor 施巍邹宏洋
Owner 深圳量旋科技有限公司