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Python-based cold atom data acquisition and analysis system

An analysis system and data acquisition technology, applied in the direction of material analysis, material analysis through optical means, and measuring devices, can solve problems such as inability to achieve real-time automatic processing, inconsistent data processing codes, and unfriendly data processing programs. Achieve the effects of flexible hardware model increase and decrease, avoidance of data access, and cold atom data collection and analysis methods are simple and fast

Pending Publication Date: 2020-11-03
SOUTH CHINA NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many ways to obtain cold atom information, but most of them require a separate control program to collect and save to the local computer, and the data storage format is not friendly to the data processing program
The code for data processing is not uniform, and it is necessary to switch between multiple programs manually. The exchange of data wastes time and consumes conversion resources. Real-time automatic processing cannot be done. Adding or removing equipment requires modifying the program from scratch, which is not humane enough.

Method used

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  • Python-based cold atom data acquisition and analysis system
  • Python-based cold atom data acquisition and analysis system
  • Python-based cold atom data acquisition and analysis system

Examples

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Embodiment 1

[0043] Aiming at the need of the present invention to provide a cold atom cloud generating device, the device is composed of a computer, a USB interface, and a CCD camera. The computer is used to run the python control software, the USB interface is used to connect the computer and the CCD camera to transmit image data, and the CCD camera is used to collect image data.

[0044] The present invention is described in detail below in conjunction with the system structure diagram:

[0045] Such as figure 1 As shown, the present invention provides a python-based cold atom data acquisition and analysis system, which includes a computer display 1 and a computer host 2, a CCD camera 3, and a USB interface 4.

[0046] Such as figure 1 As shown, the computers (1, 2) are used to run a python control program 101 to control the data collection and processing system. The python control program 101 is used to process image data.

[0047] Such as figure 1 As shown, the CCD camera 3 is co...

Embodiment 2

[0063] Preferably, the calculation of the number of cold atoms adopts cold atomic absorption imaging or fluorescence imaging method, and the above-mentioned absorption imaging calculation method includes the following steps:

[0064] Step SN1: The cold atom group is illuminated by the laser beam, and the absorption of light by the atom will produce a shadow, which is then imaged on the CCD camera;

[0065] Step SN2: The amount of light absorbed by the cloud is the optical density. The CCD camera is used to measure the optical density before and after the incident, and the atomic number distribution can be obtained according to Beers' law.

[0066] Further, the calculation formula of the absorption imaging calculation method is:

[0067]

[0068] where N is the number of atoms, PA is the CCD camera pixel size, σ is the absorption cross section, TP is the number of photons in the region of interest, and M is the magnification.

[0069] As preferably, the above-mentioned cold...

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Abstract

The invention discloses a python-based cold atom data acquisition and analysis system. The system comprises a computer, a USB interface and a CCD camera, wherein the computer is used for operating Python control software and processing data acquired by the CCD camera; the USB interface is used for connecting the computer and the CCD camera; and the CCD camera is used for shooting a cold atomic group to obtain data and transmitting the data to the computer through the USB interface. Hardware control and real-time analysis of cold atom data acquisition are integrated under a unified software framework, and flexible increase and decrease of hardware models and increase and decrease of new analysis methods are supported. Extra data access and various conversion processes are avoided, the processing speed is higher, the data processing and analysis time is remarkably saved, experimental data is easy to record, and the efficiency of cold atom experimental research is improved.

Description

technical field [0001] The invention relates to the technical field of data acquisition and analysis, in particular to a python-based cold atom data acquisition and analysis system. Background technique [0002] Laser-cooled atoms still maintain a gaseous state at extremely low temperatures, that is, to the order of microkelvin or even nanokelvin. At this time, the probability of collision between atoms is very low, and it can be considered that the atoms are basically in an isolated state. This is a research A system with very ideal atomic and molecular properties. [0003] To measure the information of cold atoms, absorption imaging technology or fluorescence imaging technology can be used, and CCD camera imaging can be used to obtain data by processing images. Nowadays, there are many methods to obtain cold atom information, but most methods require a separate control program to collect and save to the local computer, and the data storage format is not friendly to the da...

Claims

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Application Information

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IPC IPC(8): G06F9/451G01N21/84
CPCG06F9/451G01N21/84
Inventor 张善超贾鑫伟李嘉桢张灵锋
Owner SOUTH CHINA NORMAL UNIVERSITY
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